<b>Function Parameter<br> <br>●Power Supply: 2*AAA 1. 5V (Temperature and humidity monitor, 2*AA 1. 5V(Wireless remote sensor)<br> ●433Mhz Transmission Frequency<br> ●Transmission distance: up to 300 ft in open space,if there is interference, the transmission distance will be limited<br> ●Wireless remote sensor supports up to three channels and waterproof function (IPX7)<br> ●Temperature and humidity monitor temperature measurement range:-40℃c~60℃(-40F~140°F)<br> ● Temperature measurement accuracy:±1.0℃(±1.8°F)<br> Temperature display accuracy: 0.1C(0.1F)<br> ● Humidity measurement range: 10%-99%<br> ● Humidity measurement accuracy:±5%<br> ● Humidity display accuracy:1%<br> ● Wireless remote sensor temperature measurement range:-40℃~70℃(-40°F~158°F)<br> ● Wireless remote sensor temperature measurement accuracy:±1℃(±1.8°F)<br> ● Wireless remote sensor temperature display accuracy:0.1℃(0.1°F)<br> ● Temperature sampling period: 10 seconds<br> ● Exceed the range will display " HH.H" LL.L"<br> ●