Value+ VT21C Digital Hygro-thermometer (-30°C ~ 70°C, 20% ~ 90% RH)

Temperature Range: -30°C ~ 70°C

Best Temperature Accuracy: ±0.3°C

Temperature Resolution: 0.1

Humidity Range: 20% ~ 90% RH

Best Humidity Accuracy: ±2.5%

Humidity Resolution: 0.1%

External Temperature Measurement: Yes

°C / °F Selection: Yes

Time Display: Yes

Calendar: Yes

Comfort Indicator: Yes

Min/Max Record: Yes

Alarm: Yes

Data Logging: 9999

USB Connection: Yes

Power Supply: 1.5V (AAA) x 2

Datasheet