User Manual
11 
•  The temperature display can be switched between Celsius (°C) and Fahrenheit (°F) with a push 
of the °C/°F button. The display will alternate between refrigerator (probe) temperature and room 
temperature when you press the ROOM/FRIDGE button. Press RESET to clear the Max/Min 
temperature record. 
Probe Hole/Access Port (PRO Series) 
PRO series refrigerators and freezers include a 3/8” probe hole to allow users to install their own 
monitoring equipment. The probe hole is usually located in the upper part of the rear cabinet. If you 
are having difficulty locating the hole, refer to the product’s brochure on our website. 
If installing your own thermometer, alarm, or data logger, we recommend using a device with a 
buffered temperature probe and placing the probe towards the center of the unit. This will help 
provide a temperature reading closest to the contents being stored inside your refrigerator or freezer. 
If your unit includes a fixed shelf with a probe holder (see details on page 12), we recommend 
placing the probe inside the extra slot in this shelf. 
Thermometer/Alarm (MED Models) 
Every MED unit is equipped with a NIST-calibrated Thermometer/Alarm that simultaneously displays 
minimum, maximum, and current interior temperatures and provides a visual and audible signal 
when the temperature inside the unit falls outside the set temperature range. 
NOTE ABOUT CALIBRATION: All MED units ship with a two-year certificate of calibration in the 
alarm/thermometer box that comes inside your unit. Keep this certificate stored safely for your 
records. Accucold offers re-calibration services through their ISO 17025:2005 certified calibration 
laboratory. It is recommended to have your probe re-calibrated every two years (or one year, 
depending on your state’s health department guidelines). For more information on how to have your 
device re-calibrated, contact us at calibration@summitappliance.com. 
The temperature sensor, or probe, is enclosed in a glycol-filled bottle that is stored inside your unit in 
a special shelving compartment. 
In some units, the center shelf is fixed in place and cannot be removed 
(see image). This is because the glycol-filled bottle that contains the 
temperature sensors for your alarm and thermometer is best stored in this 
location. The center of your refrigerator or freezer will provide the most 
accurate temperature readings. For proper temperature monitoring, keep 
the bottle in place and do not remove this shelf.  










