flexman Digital Refrigerator Thermometer, Wireless Indoor Outdoor Thermometer with Audible Alarm, Freezer Therometer with 2PCS Sensor Min/Maximum Display

Description:
This is a wireless digital freezer therometer. It can be used in the freezer and act as therometer indoor and outdoor. Its own audible alarm can warn you of the exceeded temperature in time.

Specification:
Material: ABS
Update Rate: 10 seconds
Transmission Range: 328 Feet
Indoor Temperature range: 0 ℃ ~ 50 ℃ (32 ℉ ~ 122 ℉)
Outdoor Temperature range: -40 ℃ ~ 60 ℃ (-40 ℉ ~ 140 ℉)
Power Supply: 2 X AAA battery for the host, 4 X AA battery for the sensor (Not included)

How to Install the Sensor:
The sensors are equipped with a spring-loaded clips along with a Plastic grip to tightly attached to the boundary point of a shelf.
The display is magnet-mountable on a fridge, or use the integrated keyhole for wall mounting.

Package Included:
1 x Host (Battery not included)
2 x Sensor (Battery not included)
1 x User Manual

Notice:
Do not install the reverse battery.
Do not put the receiver near metal.
Avoid transmitter directly in the rain