Model Number: TH-3 Key Specifications/Special Features: Wireless and power by lithium batteryTemperature low/high limit programmable: -20 to 50 degrees,accuracy: +/- 1Humidity high/low limit programmable: 0% to 100%, accuracy: +/-4%Reading update speed: every 30 secondsLow battery detection/warningSupervision: sends reading at 60-minute intervalEstimated battery life: 1.2 years (at temperature/humidityvariation 10 times/day)

Size: 107 x 25 x 21mm without bracket, 109 x 28.5 x 23mm withbracket

Weight: about 35g without battery, 46g with battery