We are offering zigbee wireless temperature sensor, humidity sensor. Wl-th-01 is an item of temperature and humidity detection device based on zigbee smart home standard design. It can be used to dectect indoor and outdoor temperature and humidity and send measured data to control center by wireless network. installation of yt-711, 712, 713 doesnt need any cables as it adopts wireless communication. All the needed energy can be just provided by two standard aaa batteries.it can be hung on the wall or placed at any indoor place.it can automatically transfer all the needed data to control center without any operation.the measured value of temperature and humidity can be displayed at the control center or yt-868, meanwhile users can browse via internet. main features zigbee device type:temperature sensor compatible with ieee 802.15.4 standard completely high-accuracy +/- 0.5c, +/- 4.5%rh indoor and outdoor types for choice outdoor type has screening can small size low power consumption low electrical quantity alarm