Product Storage Temperature
-10-60⁰C (14
-
140⁰F)
Application Ambient Temperature
10-40⁰C (50-104⁰F)
Battery Voltage
9V
Product Weight
122g
Product Dimension
145 x 50 x 40 mm
Non-contact Infrared Thermometer
OS-820D
User Manual
Features:
Two measurement modes: Human body
temperature and object surface
temperature
Data storage up to 34 temperature
records
3-color alarm backlight display: green,
orange and red
Product Description:
1. LCD Display: indicate measured
temperature
2. Backlight/Laser button: turn on/off
backlight or laser
3. Left Button: during the measurement
mode, page up the stored temperature
data records; Activate the parameter
setting mode; Or during the parameter
setting mode, navigate the settings
menu
4. Right Button: during the measurement
mode, page down the stored
temperature data records; or during the
parameter setting mode, adjust
parameters.
Product Introduction:
This product is a handheld non-contact infrared
thermometer, with two possible measurement
modes: human body temperature measurement
and object surface temperature measurement
modes. It features: temperature data storage
up to 34 records, high temperature alarming,
temperature range indication based on different
backlighting color, and auto shut-off.
5. Mode button: switch between
measurement modes or switch
between English and Chinese display.
6. Laser pointer
7. IR sensor: point to the measuring object
during measurement
8. Trigger: start measurement
9. Battery cover: open to change battery
Product Information:
CONFIDENTIAL
Human Body Temperature Measurement Range
32-43⁰
C (90
-
109⁰F)
Human Body Temperature Measurement Accuracy
±0.4⁰
C (±0.7⁰F) Object
Surface Temperature Measurement Range
0-
100⁰C (32
-
212⁰F)
Object Surface Temperature Measurement Accuracy
±1⁰
C (
±1.8⁰F) Resolution
0.1⁰C (0.1
⁰F) Response Time
0.5s Distance to Measuring object
5-
15cm
Auto shut
-
off 7s
Technical Specification:
Function Settings:
Press «SET (left button) twice to enter the
parameter setting mode. A “F1” symbol will
show at button right corner. Press »ADJ (right
button) button once to adjust settings. Press
«SET (left button) to navigate between the
following settings menu: UnitTemperature
ShiftAudio On/off Exit Setting Menu.
Unit setting:
With F1 Symbol showing in bottom right corner
of the display, press »ADJ to switch between ⁰C
and ⁰F.
Temperature Shift Setting
With F2 Symbol showing in bottom right corner
of the display, press »ADJ (to increase) and
MODE (to decrease) to adjust the temperature
shift within the range of ±5 ⁰C ( ±9⁰F).
Audio ON/OFF Setting
With F3 Symbol showing in bottom right corner
of the display, press »ADJ to turn on/off audio.
During the parameter setting mode, press the
trigger to directly exit from the setting mode.
Mode Switch
Press MODE button twice to switch between
Chinese and English display language. Press
MODE button once to switch between Human
Body temperature measurement and surface
temperature measurement modes.
CONFIDENTIAL
Temperature Measurement
Point to the measuring object. Press the trigger
to begin the measurement. The display screen
will display the temperature immediately within
Surface temperature measurement mode:
Keeping the trigger pressed, the display will
indicate the object surface temperature live
with green backlight.
the response time.
Current record one record before no record
Body temperature measurement mode:
Press the trigger button once to take one
measurement. The number on the button left
corner shows the record number. The backlight
color indicates the different temperature range
as follows:
Green: Below 37.5⁰C(99.5⁰F)
Orange: 37.5⁰C-38⁰C(99.5-100.4⁰F)
Red: Above 38⁰C(100.4⁰F)
Data Record Management:
View Data Record
Press «SET (left button) and »ADJ (right
button) to page up and down among the data
records.
Delete Data Record
Press »ADJ (right button) twice to delete the
current data record. If the audio is on, the
device will beep once.
Battery installation and replacement
When the battery is running low, the screen will display a battery symbol at bottom left corner.
battery symbol
CONFIDENTIAL
Precautions before first use
1. Install batteries before use
2. Before first use, warm up the device for about 10 minutes before installing the battery.
3. When using it for body temperature measurement point thermometer at the forehead. This is a
non-contact thermometer and the suggested measuring distance to the forehead is 5cm (2in).
Press the trigger once to take one temperature measurement. Tip: temperature can also be
measured at an earlobe.
4. When measuring body temperature, please make sure there are no obstacles between the IR
sensor and forehead skin, e.g., move hair or sweat if obstructing measurement.
Warnings
The glass protector in front of the IR sensor is a critical but very fragile element of the device.
Use cotton and 70% rubbing alcohol for cleaning.
Please only use qualified battery. Do not charge batteries that are not rechargeable.
Do not use the thermometer under the sun or under water.
Maintenance
Please follow the instruction manual for troubleshooting. If the issue is not listed in the
manual, please contact our customer support.
Warning sign “HI”
When using the thermometer for measuring body temperature, the “HI” warning sign may
come on. The warning sign indicates the temperature measured exceeds the maximum
allowed threshold 43⁰C (109.4⁰F).
Warning sign “LO”
When using the thermometer for measuring body temperature, the “LO” warning sign may
come one. The warning sign indicates the temperature measured exceeds the minimum
allowed threshold 32⁰C (90⁰F).
CONFIDENTIAL
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