
SETTING THE HI/LO ALARM
1. Press the MODE button until unit is in the ALARM
DISPLAY MODE indicated by the display of current
temperature and HI and LO alarm settings.
2. To set the HIGH temperature alarm limit press the HI
button, to advance the display in 1° increments, until
the desired high temperature is displayed. Press and
hold the HI button to rapidly advance the display in 5°
increments.
3. To set the LOW temperature alarm limit press the LO
button, to advance the display in 1° increments, until
the desired low temperature is displayed. Press and
hold the LO button to rapidly advance the display in 5°
increments.
ALARM
The unit will sound the alarm in both MIN/MAX DISPLAY
MODE and ALARM (HI/LO) DISPLAY MODE.
Slide the ALARM ON/OFF switch to ON. When the
current temperature display rises above the HI set point,
or falls below the LO set point, the alarm will sound for 1
minute and issue a 3 second repeater beep every minute
thereafter, for up to 12 hours. The alarm will continue to
sound even if the current temperature display returns to an
“in range” condition.
To temporarily silence the alarm press either the HI or
LO button the back of the unit. The unit is still active and the
alarm will sound again if the temperature goes out of range.
To permanently silence the alarm slide the ALARM ON/OFF
switch to OFF position.
BENCH STAND
The unit is supplied with a bench stand that is a part of
the battery cover. To use the bench stand, locate the small
rectangular opening at the bottom of the unit. Place your
ngernail into the opening and ip the stand up. To close
the stand, simply snap it shut.
WALL MOUNTING THE UNIT
Set a screw into the wall at the desired location. Do not set
the screw ush to the wall, the head of the screw will need
to slip into the receptacle on the back of the unit. Once
the screw has been properly set, hang the unit in place by
sliding the receptacle on the back of the unit over the head
of the screw.
ALL OPERATIONAL DIFFICULTIES
If this thermometer does not function properly for any
reason, please replace the battery with a new high-quality
battery (see “Battery Replacement” section). Low battery
power can occasionally cause any number of “apparent”
operational difculties. Replacing the battery with a new
fresh battery will solve most difculties. If the voltage of the
battery becomes low °C and °F symbols will ash.
BATTERY REPLACEMENT
Erratic readings, a faint display, or no display are all indications that the battery must be replaced. Slide the battery
cover toward the end of the unit. Remove the exhausted
battery and replace with an AA alkaline battery (Cat. No.
1111). Replace the battery cover.
WARRANTY, SERVICE, OR RECALIBRATION
For warranty, service, or recalibration, contact:
CONTROL COMPANY
Control Company is ISO 9001 Quality-Certi ied by
DNV and ISO/IEC 17025 (1750.01) accredited as a
Calibration Laboratory by A2LA.
Control Company Cat. No. 4048 / 4127 / 4527
Traceable® is a registered trademark of Control Company.
©2016
Control Company. 92-4048-00 Rev. 4 061016
TRACEABLE
®
MEMORY
MONITORING
THERMOMETER
WITH ALARM
INSTRUCTIONS
5 Commonwealth Ave
Woburn, MA 01801
TestEquipmentDepot.com

SPECIFICATIONS
Range: –58 to 158°F / –50 to 70°C
Resolution: 1°
Accuracy: ±1°C
Sampling Fast 10 seconds or Normal
Rate: 60 seconds (user selectable)
Features: LCD digital thermometer, internal or external
display with maximum/minimum memory
display and high/low alarm
Battery: AA Alkaline
FRONT
VIEW
SIDE
VIEW
BACK
VIEW
PROBES
MINIMUM AND MAXIMUM TEMPERATURE
VALUES ARE NOT PROGRAMMABLE
4048 Model Probe: A detachable probe sensor and ten
feet of cable are supplied with the unit.
A wire probe holder is provided for permanently mounting the probe. To mount the probe, place a nail or screw
through the hole of the wireholder and secure the holder to
a surface.
4127/4527 Model Probe: Probe is sealed in a miniature bottle (4127: 1 x 2½ inches / 4527: 0.6 x 2 inches)
lled with a patented nontoxic glycol. Solution is GRAS
(generally recognized as safe) by the FDA (Food and Drug
Administration). It eliminates concerns about incidental
contact with food or drinking water. The solution lled bottle
simulates the temperature of other stored liquids.
Velcro® and magnetic strip are supplied to mount the
bottle to the inside of a refrigerator/ freezer and to mount
the display unit to the outside. Micro-cable permits refrigerator doors to close on it.
NOTE: Plug probe sensor into the jack on the side of the
unit. Press RESET button once whenever probe sensor is
removed or inserted. Updated ambient or probe temperatures will be displayed.
With probe sensor attached the unit simultaneously
displays current probe temperature and probe minimum/
maximum temperatures.\
DISPLAY MESSAGES
LL appearing on the display indicates that the
temperature being measured is below the temperature
range of the unit, or that the probe is disconnected or
damaged.
HH appearing on the display indicates that the
temperature being measured is above the temperature
range of the unit.
RESETTING THE UNIT
Use a pointed object to push the RESET button on the
back of the unit. It is necessary to reset the unit whenever
a change is made to oC/oF temperature , FAST/NORMAL sampling rate, or the probe sensor is plugged in or
removed.
NOTE: HI/LO temperature alarm settings and MIN/MAX
memories will be cleared after resetting the unit.
OPERATION MODES
The unit has two operating modes: MIN/MAX DISPLAY
MODE and ALARM (HI/LO) DISPLAY MODE. To change
from one mode to another press the MODE button once.
MIN/MAX DISPLAY MODE - is indicated by the display
of current temperature and the MIN (minimum) and MAX
(maximum) temperatures. These temperatures relate to
external (probe) temperature if the probe is plugged in and
to internal (ambient) temperature if the sensor probe is
removed.
ALARM (HI/LO) DISPLAY MODE - is indicated by the
display of current temperature and the HI and LO alarm
settings. These temperatures relate to external (probe)
temperature if the probe is plugged in and to internal
(ambient) temperature if the sensor probe is removed.
RESETTING MIN/MAX MEMORIES
There are two ways to reset the memories:
1. To reset both minimum and maximum memories - press
MEMORY CLEAR button.
2. To reset individual minimum and maximum memories - press either the MIN or MAX button (on back of
unit) once to reset the respective memory. The other
memory will remain unaffected.
NOTE: You must be in MIN/MAX Display Mode
to reset the memories.
DISPLAYING °F OR °C
To display the temperature readings in Fahrenheit (°F) or
Celsius (°C) slide the switch on the back of the unit to °F
or °C.
NOTE: The unit must be reset after changing the temperature unit.
SELECTING THE SAMPLING RATE
To select normal sampling rate (60 seconds) or fast
sampling rate (10 seconds) slide the switch on back of unit
to NORMAL or FAST.
NOTE: The unit must be reset after changing the sampling
rate. Using the NORMAL sampling rate will extend battery
life.