Hygrometer: Measuring range: 10 to 90 %, when temperature is 0 to 40℃ (32 to 104℉) Hygrometer sensor precision: ±10 %, when temperature is 5 to 40℃ (41 to 104℉)
Thermometer: Measuring range: -19.9 to 49.9℃ (-3.8 to 121.8℉) Temperature sensor precision: ±2℃ (±4℉) in range of 0 to 40℃ (32 to 104℉) *Changeover between Clesius (℃) and Fahrenheit (℉)
Accuracy: ±60 seconds per month
Other features: 12/24-hour format
Power supply and battery life:
Approximate battery life: 12 months on R6P X 2