Thermohygrometers testo 623

-The new testo 623 thermohygrometer displays current and past temperature and humidity values on a large, clear display.
-Histogram shows current and recent historical temperature or humidity values
-Large, highly legible display
-Curve display of the last 90 days
Specifications
Meas. units: Temperature: °C, °F
Humidity: % rH, td, wb
Meas. range: -10 to 60°C
0 to 100% rH
Resolution: 0.1°C
0.1% rH
Accuracy ±1 digit: ±0.4°C
±2% rH at 25°C (10 to 90% rH)
±3% rH (rest of range)
Time: ± 3 minutes/year
Display: LCD
Measuring rate: 20 secs
Alarm function: LED alarm for too low or too high temperatur and/or humidity values
Calibration reminder
Storage temp.: -20 to 60°C
Oper. temp: -10 to 60°C
Power supply: 4 x AA
Battery life: 12 months
Dimensions (L x W x H): 185 x 105 x 36mm
Weight: 240g (without batteries)