T20 wireless temperature humidity data logger , temperature/humidity recorder

T20 wireless temperature humidity data logger , temperature/humidity recorder Skype: lisali1220 Whatsapp: 0086 13652426178 SPECIFICATIONS Power supply: DC12V/1.5A Inside temperature measure rang: -40°C ~ +125°C, accuracy±0.3°C Inside humidity measure rang: 0~100%RH, accuracy±2% External temperature probe measure rang: -55°C ~ +125°C GSM quad-band, applicable worldwide, 3G optional Working temperature: -40℃~+70℃ Relative humidity: 10-90%, No condensation Exterior dimension: