InTemp CX400 series loggers measure temperature in indoor monitoring applications. Designed
to meet World Health Organization (WHO) and Centers for Disease Control and Prevention
(CDC) guidelines, this logger is ideal for clinical applications, such as vaccine storage and
pharmaceutical manufacturing. This Bluetooth® Low Energy-enabled logger is designed for
wireless communication with a mobile device. Using the InTemp app, you can easily configure
the logger with one of four preset configurations designed for ambient storage, clinical
refrigerator, freezer, or refrigerator monitoring or you can set up a custom configuration for
other applications. You can also quickly perform daily logger checks, download reports, and
monitor tripped alarms. Use the built-in LCD screen to check the current temperature, daily
maximum or minimum temperatures, logging status, battery use, and more. You also have the
option to use InTempConnect® to track logger deployments and automatically upload logger
data to build custom reports for further analysis. The CX402 model uses a 2- or 4-meter probe
and is available with a 5, 15, or 30 mL glycol bottle (bottle holder included). It also contains an
internal sensor for ambient temperature monitoring. The CX403 model is available with an
internal sensor only.
InTemp CX400 Temperature
Loggers
Models:
• CX402-T205 & CX402-VFC205,
2 meter probe and 5 mL glycol
bottle
• CX402-T215 & CX402-VFC215,
2 meter probe and 15 mL
glycol bottle
• CX402-T230 & CX402-VFC230,
2 meter probe and 30 mL
glycol bottle
• CX402-T405 & CX402-VFC405,
4 meter probe and 5 mL glycol
bottle
• CX402-T415 & CX402-VFC415,
4 meter probe and 15 mL
glycol bottle
• CX402-T430 & CX402-VFC430
4 meter probe and 30 mL
glycol bottle
• CX402-T2M, CX402-B2M, &
CX402-VFC2M, 2 meter probe
• CX402-T4M, CX402-B4M, &
CX402-VFC4M, 4 meter probe
• CX403
Included Items:
• Double-sided tape (for models
with glycol bottles)
• Two AAA 1.5 V alkaline
batteries
• Battery door and screw
• NIST Certificate of Calibration
Required Items:
• InTemp app
• Device with iOS or Android™
and Bluetooth
Specifications
External Temperature Probe
Range -40° to 100°C (-40° to 212°F)
Accuracy CX40x-Txxx and CX402-BxM:
Resolution 0.024°C at 25°C (0.04°F at 77°F)
Drift <0.1°C (0.18°F) per year
Response Time Probe only: 1 minute 30 seconds typical to 90% in air moving 1 m/s
NIST Calibration CX40x-Txx and CX402-BxM: Single point NIST calibration, probe and
Cable Length 2 or 4 meter (6.56 or 13.12 feet) flat ribbon cable
Probe Dimensions Food-grade stainless steel probe with pointed tip, 53.34 mm (2.1 inches)
Ambient Temperature Sensor
Range -30° to 70°C (-22° to 158°F)
Accuracy CX40x-Txxx and CX402-BxM:
Resolution 0.024°C at 25°C (0.04°F at 77°F)
Drift <0.1°C (0.18°F) per year
Response Time 15 minutes typical to 90% in air moving 1 m/s
Logger
Radio Power 1 mW (0 dBm)
Transmission Range Approximately 30.5 m (100 ft) line-of-sight
Wireless Data Standard Bluetooth Low Energy (Bluetooth Smart)
±1.0°C from -40° to -15°C (±1.8°F from -40° to 5°F)
±0.5°C from -15° to 80°C (±0.9°F from 5° to 176°F)
±0.7°C from 80° to 100°C (±1.3°F from 176° to 212°F)
CX40x-VFCxxx:
±1.0°C from -40° to -22°C (±1.8°F from -40° to -8°F)
±0.5°C from -22° to 50°C (±0.9°F from -8° to 122°F)
±1.0°C from 50° to 100°C (±1.8°F from 122° to 212°F)
With 5 mL bottle: 10 minutes typical to 90% in air moving 1 m/s
With 15 mL bottle: 20 minutes typical to 90% in air moving 1 m/s
With 30 mL bottle: 25 minutes typical to 90% in air moving 1 m/s
logger body
CX40x-VFCxxx: Single point NIST calibration, probe only
long, 3.18 mm (0.125 inches) diameter
±0.5°C from -15° to 70°C (±0.9°F from 5° to 158°F)
±1.0°C from -30° to -15°C (±1.8°F from -22° to 5°F)
CX40x-VFCxxx:
±1.0°C from -30° to -22°C (±1.8°F from -22° to -8°F)
±0.5°C from -22° to 50°C (±0.9°F from -8° to 122°F)
±1.0°C from 50° to 70°C (±1.8°F from 122° to 158°F)
19996-J
InTemp CX400 Series Temperature Logger Manual
Specifications (continued)
Logger Operating Range -30° to 70°C (-22° to 158°F), 0 to 95% RH (non-condensing)
Logging Rate 1 second to 18 hours
Time Accuracy ±1 minute per month at 25°C (77°F)
Battery Type Two AAA 1.5 V alkaline or lithium batteries, user replaceable
Battery Life 1 year, typical with logging interval of 1 minute. Faster logging intervals,
Memory 128 KB (84,650 measurements, maximum)
Full Memory Download
Time
LCD LCD is visible from 0° to 50°C (32° to 122°F); the LCD may react slowly or
Dimensions 9.4 x 4.5 x 2.59 cm (3.7 x 1.77 x 1.02 inches)
Weight 90.2 g (3.18 oz)
Environmental Rating IP54
Passed RTCA DO160G, part 21H
remaining connected with the InTemp app, excessive report generation,
numerous audible alarms, and paging all impact battery life.
Approximately 60 seconds; may take longer the farther the device is
from the logger
go blank in temperatures outside this range
The CE Marking identifies this product as complying with all relevant
directives in the European Union (EU).
See last page
Logger Components and Operation
Alarm LED
LCD
Audible alarm
speaker
Start button
External
temperature
probe (CX402
models only)
Start Button: Press this button for 1 second to start the logger
when it is configured to start “on button push.”
Mute or Next Button: Press this button for 1 second to mute a
beeping alarm (see Logger Alarms). For CX402 loggers, press
this button for 1 second to switch between the external probe
and ambient internal sensor temperature readings.
Magnets: There are four magnets on the back of the logger (not
shown in diagram) for mounting.
Temperature Sensor: This internal sensor measures ambient
temperature.
External Temperature Probe: This is the probe that is plugged
into the logger for measuring temperature (CX402 models
only).
Audible Alarm Speaker: This is the speaker for the audible
alarm that beeps when an alarm is tripped or the external
probe is removed (if applicable).
Temperature
sensor (behind
rectangular
plug)
One of four
magnets (on
back of logger)
Mute or Next
button
Alarm LED: This LED blinks every 5 seconds when an alarm is
tripped or the external probe is removed (if applicable). See
Logger Alarms.
LCD: This screen shows the latest temperature reading and
other status information. The LCD screen refreshes at the same
rate as the logging interval. The example shows all symbols
illuminated on the LCD screen followed by a table with
descriptions of each symbol.
LCD Symbol Description
An alarm has tripped because the temperature
reading is outside the specified range
The logger has been configured to perform daily or
twice daily checks (twice daily is shown in this
example), but no checks have been performed yet.
The once daily or twice daily logger check (twice in
this example) has been performed.
This indicates how much memory has been used
for the current deployment. In this example,
approximately 40 percent of the memory has been
used.
This shows the approximate battery power
remaining.
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InTemp CX400 Series Temperature Logger Manual
LCD Symbol Description
The logger is currently logging.
The logger is currently connected to a phone or
tablet via BlueTooth. The more bars there are, the
stronger the signal.
The logger is waiting to be started. Press and hold
the Start button for 3 seconds to start the logger.
This is an example of a temperature reading from
an external probe.
This is an example of a temperature reading from
the internal sensor.
This is an example of a minimum temperature,
which is the lowest probe temperature reading
from the day (CX402 models) or the lowest
ambient temperature reading (CX403 model)
within the current 24-hour period (midnight from
one day to midnight the next day) if the logger
was set to record logger checks (see Performing Logger Checks). Otherwise the minimum and
maximum readings represent the entire logging
period and only reset when the logger is
downloaded and restarted or stopped and
reconfigured.
This is an example of a maximum temperature,
which is the highest probe temperature reading
from the day (CX402 models) or the lowest
ambient temperature reading (CX403 model)
within the current 24-hour period (midnight from
one day to midnight the next day) if the logger
was set to record logger checks (see Performing Logger Checks). Otherwise the minimum and
maximum readings represent the entire logging
period and only reset when the logger is
downloaded and restarted or stopped and
reconfigured.
The external probe is not connected to the logger
and
(if applicable).
MUTE indicates an alarm is beeping. Turn off the
or
beeping alarm by pressing the Mute button. The
LCD then changes to MUTED.
The audible alarm has been muted.
The logger has been configured to start logging on
a delay. The display will count down in days,
hours, minutes, and seconds until logging begins.
In this example, 5 minutes and 38 seconds remain
until logging will begin.
The configuration settings are being loaded onto
the logger from the app.
An error occurred while loading the configuration
settings onto the logger from the app. Try
reconfiguring the logger.
The logger was paged from the app.
The logger has been downloaded and stopped
with the app or because the memory is full.
The logger is being updated with new firmware.
Note: If the logger has stopped logging because the memory is
full, the LCD screen will remain on with “STOP” displayed until
the logger is downloaded to your mobile device. Once the
logger has been downloaded, the LCD will turn off
automatically after 2 hours. The LCD will turn back on the next
time the logger connects with your device.
Getting Started
InTempConnect is web-based software where you can monitor
CX400 series logger deployments and view downloaded data
online. Using the InTemp app, you can configure the logger
with your phone or tablet and then download reports, which
are saved in the app and automatically uploaded to
InTempConnect. The CX5000 Gateway is also available to
automatically download loggers and upload data to
InTempConnect (see www.intempconnect.com/help for
details). You also have the option to use the logger with the
InTemp app only.
Follow these steps to begin using the loggers with
InTempConnect and the InTemp app.
1.Administrators:Set up an InTempConnect account. Follow
all steps if you are a new administrator. If you already have
an account and roles assigned, follow steps c and d.
If you are using the logger with the InTemp app only, skip
to step 2.
a. Go to www.intempconnect.com and follow the prompts
to set up an administrator account. You’ll receive an
email to activate the account.
b. Log into www.intempconnect.com and add roles for the
users you will be adding to the account. Click Settings
and then the Roles tab. Click Add Role, enter a
description, select the privileges for the role and click
Save.
c. Click the Users tab to add users to your account. Click
Add and enter the email address and first and last name
of the user. Select the roles for the user and click Save.
d. New users will receive an email to activate their user
accounts.
2.Set up the logger. Insert two AAA batteries in the logger,
observing polarity. Insert the battery door in the back of the
logger making sure it is flush with the rest of the logger
case. Use the included screw and a Phillips-head
screwdriver to screw the battery door into place.
Insert the external temperature probe (if applicable).
3. Download the InTemp app and log in.
a. Download InTemp to a phone or tablet from the App
Store® or Google Play™.
b. Open the app and enable Bluetooth in the device settings
if prompted.
c. InTempConnect users: Log in with your InTempConnect
user credentials. (Your device must be able to connect to
the internet.)
App only users: If you will not be using InTempConnect,
create a local user account and log in when prompted.
4. Configure the logger.
InTempConnect users: Configuring the logger requires
privileges. The logger includes preset configurations.
Administrators or those with the required privileges can
also set up custom configurations (including setting up daily
logger checks) and trip information fields. This should be
done before configuring the logger.
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InTemp CX400 Series Temperature Logger Manual
App only users: The logger includes preset configurations.
To set up a custom configuration, tap the Settings icon and
tap CX400 Logger. Also, if you need to perform daily logger
checks, tap Record CX400 Logger Checks under Settings and
select Once Daily or Twice Daily. This should be done before
configuring the logger.
See www.intempconnect.com/help for details on setting up
custom configurations in both the app and InTempConnect
and on setting up trip information.
a. Tap the Devices icon in the app. Find the logger in the list
and tap it to connect to it.
If you are having trouble connecting:
• Make sure the logger is within range of your mobile
device. The range for successful wireless communication
is approximately 30.5 m (100 ft) with full line-of-sight.
• If your device can connect to the logger intermittently
or loses its connection, move closer to the logger, within
sight if possible.
• Change the orientation of your phone or tablet to
ensure the antenna in your device is pointed toward the
logger. Obstacles between the antenna in the device
and the logger may result in intermittent connections.
• If the logger appears in the list, but you cannot connect
to it, close the app, power down the mobile device, and
then turn it back on. This forces the previous Bluetooth
connection to close.
b. Once connected, tap Configure. Swipe left and right to
select a logger configuration. Type a deployment name.
Tap Start to load the selected configuration to the logger.
InTempConnect users: If trip information fields were set
up, you will be prompted to enter additional information.
Tap Start in the upper right corner when done.
5.Deploy and start the logger. Deploy the logger to the
location where you will be monitoring the temperature.
Logging will begin based on the settings in the configuration
selected. If the logger was configured to perform daily
checks, connect to the logger and tap Perform (Morning,
Afternoon, or Daily) Check every day.
Once logging begins, the logger will display the current
temperature reading and the minimum and maximum readings
within the current 24-hour period (midnight from one day to
midnight the next day) if the logger was set to record logger
checks (see Performing Logger Checks). Otherwise the
minimum and maximum readings represent the entire logging
period and only reset when the logger is downloaded and
restarted or stopped and reconfigured (they will not reset if you
download the logger and continue logging). These minimum
and maximum values are also available in the logger reports
(see Downloading the Loggers).
and maximum readings are only available for the external
probe.
Logger Alarms
There are two conditions that will trip an alarm:
• When the temperature reading by the external probe (if
applicable) or the ambient temperature is outside the
range specified in the logger configuration.
• When an external probe (if applicable) is disconnected
during logging.
When a temperature alarm trips:
• The logger LED will blink every 5 seconds.
• The alarm icon will appear on the LCD and in the app.
• The logger will beep every 15 seconds (unless audible
alarms are disabled in the logger configuration).
• An Alarm Tripped event is logged.
When an external probe is removed:
• The logger LED will blink every 5 seconds.
• “ERROR” and “PROBE” will appear on the LCD and
“ERROR” will appear in the app.
• An alarm icon will appear in the app.
• The logger will beep every 15 seconds.
• A Probe Disconnected event is logged.
To mute a beeping alarm, press the Mute button on the logger.
Once muted, you cannot turn the beeping back on.
Download the logger to view details about a tripped alarm and
to clear alarm indicators in the app and on the LCD (the probe
must be reconnected for ERROR to clear on the LCD). For a
temperature alarm, the tripped alarm will clear once the logger
is downloaded and restarted.
Passkey Protection
The logger is protected by an encrypted passkey automatically
generated by the InTemp app for InTempConnect users and
optionally available for local users who are using the app only.
The passkey uses a proprietary encryption algorithm that
changes with every connection.
InTempConnect Users
Only InTempConnect users belonging to the same
InTempConnect account can connect to a logger once it is
configured. When an InTempConnect user first configures a
logger, it is locked with an encrypted passkey that is
automatically generated by the InTemp app. After the logger is
configured, only active users associated with that account will
be able to connect to it. If a user belongs to a different account,
that user will not be able to connect to the logger with the app,
which will display an invalid passkey message. Administrators
or users with the required privileges can also view the passkey
from the device deployment page in InTempConnect and share
them if needed. See www.intempconnect.com/help for more
details.
For CX402 models, you can click Next to switch between
external probe and ambient temperature readings. Minimum
1-800-LOGGERS 4 www.onsetcomp.com
Local Users
If you are not using InTempConnect and instead logging into
the app as a local user, you can create an encrypted passkey for
InTemp CX400 Series Temperature Logger Manual
the logger that will be required if another phone or tablet
attempts to connect to it. This is recommended to ensure that
a deployed logger is not mistakenly stopped or purposely
altered by others.
To set a passkey:
1. Tap the Devices icon and connect to the logger.
2. Tap Set Logger Passkey.
3. Type a passkey up to 10 characters.
4. Tap Save.
5. Tap Disconnect.
Only the phone or tablet used to set the passkey can then
connect to the logger without entering a passkey; all other
mobile devices will be required to enter the passkey. For
example, if you set the passkey for the logger with your tablet
and then try to connect to the device later with your phone,
you will be required to enter the passkey on the phone but not
with your tablet. Similarly, if others attempt to connect to the
logger with different devices, then they would also be required
to enter the passkey. To reset a passkey, simultaneously press
both the top and bottom button on the logger for 3 seconds, or
connect to the logger, tap Set Logger Passkey, and select Reset
to Factory Default.
Downloading the Logger
You can download the logger to a phone or tablet and generate
reports that include logged probe (if applicable) and ambient
readings, events, user activity, alarm information, and more.
Reports can be shared immediately upon download or accessed
later in the app.
InTempConnect users: Privileges are required to download,
preview, and share reports in the app. Report data is
automatically uploaded to InTempConnect when you download
the logger. Log in to InTempConnect to build custom reports
(requires privileges). In addition, InTempConnect users can also
download CX loggers automatically on a regular basis using the
CX5000 Gateway. See www.intempconnect/help for details.
To download the logger:
1. Tap the Devices icon and connect to the logger.
2. Tap Download.
3. Choose a download option:
• Download & Continue. The logger will continue logging
once the download is complete.
• Download & Restart. The logger will start a new
deployment using the same configuration once the
download is complete.
• Download & Stop. The logger will stop logging once the
download is complete.
A report of the download is generated and is also uploaded to
InTempConnect if you are logged into the app with your
InTempConnect user credentials.
In the app, tap Settings to change the default report type and
report sharing options. The report is also available in Secure
PDF, XLSX, and VFC CSV (if enabled) formats for sharing at a
later time. Tap the Reports icon to access previously
downloaded reports. See www.intempconnect.com/help for
details on working with reports in both the app and
InTempConnect.
Performing Logger Checks
If your monitoring application requires that you perform daily
or twice daily checks of the logger, you can use the InTemp app
to connect to the logger and perform a check.
To enable the perform check feature in the app (if you are not
using InTempConnect):
1. Tap the Settings icon.
2. Under Record CX400 Logger Checks, select either Once
Daily or Twice Daily. If you choose Twice Daily, a Perform
Morning Check action will be listed in the Connected screen
from 12:01 AM until 12:00 PM and then a Perform
Afternoon Check action will be listed from 12:01 PM to
12:00 AM. If you choose Once Daily, an action will be listed
in the Connected screen to Perform Daily Check.
To enable the perform check feature if you are using
InTempConnect, an administrator or user with the required
privileges must create a new configuration profile for a CX400
logger and set the Daily Checks to Once Daily or Twice Daily. For
details on managing configuration profiles, see
www.intempconnect.com/help.
Note: Changes to the Record CX400 Logger Checks setting will
take effect the next time the logger is configured. Also, when
this setting is enabled, the minimum and maximum values
displayed on the logger LCD represent the minimum and
maximum readings within the current 24-hour periods and will
reset every 24 hours. Otherwise, if this setting is not enabled,
the minimum and maximum values represent the entire logging
period and only reset when the logger is downloaded and
restarted or stopped and reconfigured (they will not reset if you
download the logger and continue logging).
To perform a check:
1. Tap the Devices icon and connect to the logger.
2. Tap Perform (Morning, Afternoon, or Daily) Check.
Once a check is completed, it is recorded as a logged user
action along with the user email and the location, and is
available for view in reports. The action is also listed as
performed in the Connected screen and a checkmark will
illuminate on the logger LCD.
You can also set up a notification to display on your phone or
tablet to remind you to perform a check. Use the Reminders
option under Settings in the app.
Logger Events
The logger records the following events to track logger
operation and status. These events are listed in reports
downloaded from the logger.
Event NameDefinition
Started The logger started logging.
Stopped The logger stopped logging.
Downloaded The logger was downloaded.
Probe Disconnected/
Connected
The external probe was disconnected or
connected during logging (CX402 model
only).
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InTemp CX400 Series Temperature Logger Manual
Event Name Definition
Probe Alarm
Tripped/Cleared
Ambient Alarm
Tripped/Cleared
Performed/Missed
Check
Safe Shutdown The battery level dropped below 1.85 V; the
A probe temperature alarm has tripped or
cleared because the reading was outside the
alarm limits or back within range (CX402
model only).
An ambient temperature alarm has tripped
because the reading was outside the alarm
limits or has cleared (CX403 model only).
The user performed or missed the daily,
morning, or afternoon logger check.
logger performs a safe shutdown.
Deploying the Logger
Follow these guidelines for deploying the logger:
• Use the four magnets on the back of the logger case to
mount it to a magnetic surface.
• If using the CX402 logger for vaccine storage monitoring,
the logger must remain outside of the refrigerator with
the logger probe and glycol bottle placed inside the
center of the refrigerator.
• If you remove the probe from the glycol bottle with a
CX402 logger and then reinsert it, make sure you insert it
through the center of the glycol bottle cap and push it
down until the stainless steel probe is completely in the
bottle. The black heat shrink on the probe cable should
be flush with the top of the cap as shown in the example.
battery performance. New batteries typically last 1 year with
logging intervals greater than 1 minute. Deployments in
extremely cold or hot temperatures or a logging interval faster
than 1 minute can impact battery life. Estimates are not
guaranteed due to uncertainties in initial battery conditions and
operating environment.
To install or replace the batteries:
1. If the battery door is already installed on the back of the
logger, use a Phillips-head screwdriver to remove it.
2. Remove any old batteries.
3. Insert two new batteries observing polarity.
4. Screw the battery door into place.
WARNING: Do not cut open, incinerate, heat above 85°C
(185°F), or recharge the lithium batteries. The batteries may
explode if the logger is exposed to extreme heat or conditions
that could damage or destroy the battery case. Do not dispose
of the logger or batteries in fire. Do not expose the contents of
the batteries to water. Dispose of the batteries according to
local regulations for lithium batteries.
Black heat shrink flush
with bottle cap
• For CX402 loggers, use the included double-sided tape to
affix the bottle holder to a surface if desired.
Protecting the Logger
The logger is designed for indoor use and can be permanently
damaged by corrosion if it gets wet. Protect it from
condensation. If the logger gets wet, remove the battery
immediately and dry the circuit board.
Note:Static electricity may cause the logger to stop logging.
The logger has been tested to 8 KV, but avoid electrostatic
discharge by grounding yourself to protect the logger. For more
information, search for “static discharge” on onsetcomp.com.
Battery Information
The logger requires two user-replaceable AAA 1.5 V alkaline or
optional lithium batteries for operation at the extreme ends of
the logger operating range. Expected battery life varies based
on the ambient temperature where the logger is deployed, the
frequency of connecting to the phone or tablet and
downloading reports, the duration of audible alarms, and
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InTemp CX400 Series Temperature Logger Manual
Federal Communication Commission Interference Statement
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one of the following measures:
• Reorient or relocate the receiving antenna
• Increase the separation between the equipment and receiver
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected
• Consult the dealer or an experienced radio/TV technician for help
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired operation.
FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment.
Industry Canada Statements
This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and
(2) this device must accept any interference, including interference that may cause undesired operation of the device.
Avis de conformité pour l’Industrie Canada
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1)
l'appareil ne doit pas produire de brouillage, et (2) l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le
fonctionnement.
To comply with FCC and Industry Canada RF radiation exposure limits for general population, the logger must be installed to provide a separation distance of at least 20cm from
all persons and must not be co-located or operating in conjunction with any other antenna or transmitter.