-> Adopt the most accurate temperature sensor, no error temperature.
-> Support real time display the temperature.
-> You can set high / low temperature value with the keyboard. Support high / low temperature alarm, program this detector to your alarm host, when tempature is too high or too low, your alarm host will alarm.
-> This temperature detector work at wireless 433MHz frequency.
-> Use the battery: 9V 6F22 battery.
-> Suitable temperature range: -29 ℃ ~ +90 ℃
1 * Wireless Temperature detector (Battery not include)
Install more accessories will make your system more powerful, please click below photo to buy more accessories.