Control Company Traceable High-Accuracy Refrigerator Thermometer
Model 4239
High accuracy thermometer monitors 2 different areas of any refrigerator or freezer
Reads to 0.01° while monitoring temperatures in refrigerator and freezer simultaneously or two refrigerator locations, °F/°C switchable
Triple display shows minimum, maximum and current temperatures
Two channel alarms provide unique visual (LED's) and audio alerts when temperature rises above or falls below user-defined high and low set points
Unit displays the exact time and date when dual thermometer alarms are triggered, alarms are programmable in 0.1 increments
Monitors minimum and maximum readings and displays the exact time and date when minimum and maximum temperatures occurred for both probes
Records time and date for min/max readings and hi/lo alarm alerts
Visual and audible alarms signal continuously (for days) even if temperature returns to non-alarm range
10' micro-cable permits refrigerator doors to close on it
Temperature-buffered bottle sensor insulates and eliminates rapid changes when refrigerator door is opened
The thermometers in the reference picture were left to stabilize in an unoccupied room for more than 24 hours in order to provide some indication of relative accuracy. Note that the min/max values shouldn't be used for comparison, and that units with multiple channels are only showing one and that the other may vary.
This is #5 in the picture.
Condition Description:
Was briefly used for display ca. 2016, has sat in a box since then. Some minor cosmetic scuffs on plastic. Calibration state unknown. No batteries or certificate included.
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This listing is for the item(s) pictured and includes no more or less, unless otherwise stated in the item or condition description.