To test maximum and minimum thermometer, can use both indoor and outdoor

Specifications:

* Display the maximum and minimum temperature;
* Deg C and deg F switch;
* Temperature measure range: -50~+70C(-58~+158F)
* Use of the environment: -10~+50C
* Accuracy: +/-1C
* Cycle of measure temperature:10second;
* 1.5V (AAA)