1. Both the host and the slave have the following functions: measuring the temperature * memorizing the minimum / maximum temperature value; * high temperature alarm (the sound alarm will be given if the temperature exceeds the preset value) �� low temperature alarm (the sound alarm will be given if the temperature is lower than the preset value).
2.Indoor temperature range: 0 �� C ~ + 60 �� C
3. outdoor temperature range: - 40 �� C to + 60 �� C
4. temperature accuracy: + / - 1.0
5. power supply (host): 2 * 7 battery.
6.power supply (slave): 2 * 5 battery.
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