Inexpensive refrigerator thermometer switchable range is from 32 to 113°F and 0 to 45°C with a resolution of 0.1°. Accuracy is ±1°C in the range of 5 to 25°C and ±1.5°C outside range. Always-hold™ secure suction cup on the back allows the unit to be located anywhere inside the refrigerator. Can be placed anywhere with supplied Velcro.

Display updates every 30 seconds. This allows capturing reading without any effect from an open refrigerator door. Wide range of the thermometer also makes it an ideal unit to monitor temperatures in storerooms, labs, offices, hoods, and cabinets.

To ensure accuracy, an individually serial-numbered Traceable® Certificate is provided from an ISO 17025 calibration laboratory accredited by A2LA. It indicates traceability to standards provided by NIST (National Institute of Standards and Technology).

The see-through display is easy to view with an LCD digit height of 1/2 inch. Includes one LR54 Alkaline button cell battery; replacement 3039-53. Size is 1 x 2-1/2 x 3/8 inches. Weight is 1/2 ounce. One year warranty.