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Climate measuring instrument testo 440 with CO2 sensor

For reliable assessment of indoor air quality. Complete set for long-term measurement and parallel determination of CO₂ concentration, humidity and indoor air temperature. Consisting of the climate measuring device testo 440, a multifunctional, wireless handle and CO₂ sensor. With absolute pressure compensation, calculation of wet bulb temperature, dew point and absolute humidity. Fully configured, ready for use.

Wireless handle with Bluetooth^® technology
Easy, intuitive operation
Easy storage of measured values by means of a button on the handle
Large, illuminated graphic LCD with parallel display of 3 measured values
Measuring instrument with magnetic fixation on metal surfaces
Internal data storage and USB interface
Handle can be extended with other probes to measure further parameters
Automatic probe recognition

Scope of delivery: Multifunctional climate measuring instrument testo 440, USB cable, handle with CO₂ probe incl. temperature and humidity sensor, table stand, batteries and calibration protocols for measuring device and sensors, transport case

Climate measuring instrument testo 440 with CO2 sensor

Specifications
CO₂ range: CO₂ resolution:	0 … 10000 ppm 1 ppm
CO₂ accuracy:	±(50 ppm + 3 % of average) (0 ... 5000 ppm) ±(100 ppm + 5 % of average)
Humidity range: Humidity resolution:	5 ... 95 % r.H. 0.1 % r.H.
Humidity accuracy:	±3 % r.H. (10 ... 35 % r.H.) ±2 % r.H. (35 ... 65 % r.H.) ±3 % r.H. (65 ... 90 % r.H.)
Temperature range: Temperature resolution:	0 ... 50 °C ±0.5 °C
Temperature accuracy:	0.1 °C
Dimensions (instrument, W x D x H):	65 x 32 x 154 mm
Weight (instrument):	250 g
Power supply (instrument):	3 x AA 1.5 V
Power supply (handle):	4 x AA 1.5 V