temperature humidity sensor data logger T20

GSM GPRS WIFI Temperature and humidity alarm, Temperature and Humidity data logger Skype: glare.wang SPECIFICATIONS Power supply: DC12V/1.5A Inside temperature measure rang: -40C ~ +125C, accuracy±0.3C Inside humidity measure rang: 0~100%RH, accuracy±2% External temperature probe measure rang: -55C ~ +125C GSM quad-band, applicable worldwide, 3G optional Working temperature: -40℃~+70℃ Relative humidity: 10-90%, No condensation Exterior dimension: 130×130×19mm All