1. Material: ABS PC 2. Product size: 75*75*13mm 3. Temperature range: -20 degree C to 50 degree C 4. Humidity measurement range: 10%-90% RH 5. Temperature measurement error: =< +/-1 degree C (-20-50 degree C) 6. Humidity error: =< +/-5%RH (40%-75%RH), =< +/-7%RH (25%-40%RH), =< +/-9%RH(other) 7. The thermometer is a mechanical thermometer. It is automatically sensed after being placed in an environment for a while. No adjustment is required. 8. Power by AAA battery (not included)
