Product size: 115*64*19mm
Display size:63*43mm
Temperature measure range:Inner temperature:-30℃~50℃;Outer temperature:-50℃~70℃
Humidity measure range:20%RH~99%RH
Power supply: DC1.5V one 7# alkaline battery (optional)
.Resolution:temperature:0.1℃(0.2℉),humidity:1%RH
.Accuracy:temperature:±1℃,humidity:±5%(at +25℃)