General description The YMYNY Wireless Digital One-to-One Freezer Thermometer is designed to monitor both indoor and outdoor temperatures, featuring an audible alarm for temperature adjustments. It includes a built-in indoor temperature sensor and a remote sensor to ensure accurate readings. The thermometer continuously records maximum and minimum temperatures for 24 hours, providing essential data for maintaining optimal conditions. Technical specifications Material: ABS Color: White Refresh Rate: 10 seconds Indoor Temperature Range: -10℃~60℃ (14℉~140℉) Outdoor Temperature Range: -40℃~60℃ (-40℉~140℉) Power Supply: 2 x AAA Batteries (Not Included) Host Size: Approx. 9.5*8.5*2cm / 3.74*3.34*0.78in Package Weight: Approx. 180g Installation The display can be placed upright on a table or mounted on the wall. Ensure the battery is installed correctly; do not install it upside down. Avoid placing the receiver near metal objects. Do not expose the transmitter to direct rain. Usage The