This refrigerator temperature gauge boasts a precise probe sensor, designed to monitor conditions in diverse spaces, from home kitchens to food storage warehouses. Its waterproof build supports usage in challenging environments, like refrigerators, freezers, fish tanks, and refrigerated transport setups. Featuring an easy-to-read LCD screen and a magnetic attachment option, it caters seamlessly to household, supermarket, and catering service requirements, offering practicality for appliances, including wine coolers and more. Specification: Product name: Refrigerator Temperature Gauge Product size: about 10x6cm/3.94x2.36 inches Temperature measurement range: -50C+70C (-58F+158F) Humidity measurement range: 10%RH-99%RH Humidity resolution: 0.1C Battery: Triple-A battery (not included) Color: As Shown Material: plastic Package Contents: 1 x Freezer Temperature Gauge Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.