mini hygro thermometer with max min and C/F selected functions Measuring range: Temperatuer:-10℃~50℃(14℉~122℉) Humidity :20~95%R.H Accuracy: Temperature:+/-1℃(1.8℉) within 0℃~35℃(32℉~95℉), +/-2℃ at the remaining range Humidity : 5%R.H,within 40%~80%R.H,and 0℃~35℃(32℉~95℉),5% at the remaining range Resolution: 0.1℃(0.1℉),1%RH Unit size: 53(L) ×34(W) ×16(T)mm Battery: AG13 or.LR44