Multi-purpose environmental measuring instrument testo 440 Thermal anemometer set 0563 4400 1 set

A set of corded hot wire anemometer probes The clearly structured operation menu allows you to simultaneously measure air speed, volume, and temperature in air conditioning systems and ventilation ducts. The telescopic rod can be extended up to 0.85m and has engraved markings to indicate the depth to which it can be inserted into e.g. duct vents. Automatic air pressure compensation allows for more accurate measurement of wind speed and volume, and recorded data can be exported to a PC via USB. The main unit can be connected to all probes in the testo 440 series, and by adding other probes and accessories as needed, it can measure multiple items with just one unit. [Air velocity probe specifications] Temperature measurement range: -20 to +70°C Accuracy: ±0.5°C Resolution: 0.1°C Absolute pressure measurement range: +700 to +1100hPa Accuracy: ±3.0hPa Resolution: 0.1hPa Hot wire anemometer measuring range: 0-30m/s Accuracy: ±(0.03m/s + 4% of measured value) (0-20m/s), ±(0.5m/s + 5% of measured value) (20.01-30m/s) Resolution: 0.01m/s [Testo 440 main unit specifications] Temperature (with NTC thermistor connected) Measurement range: -40 to +150°C Accuracy (±1 digit): ±0.4°C (-40 to -25.1°C), ±0.3°C (-25 to +74.9°C), ±0.4°C (+75 to +99.9°C), ±0.5% of measured value (other ranges) Resolution: 0.1°C Temperature (K thermocouple) Measurement range: -200 to +1370°C Accuracy (±1 digit): ±(0.3°C + 0.3% of measured value) Resolution: 0.1°C Number of probe connections 1 x K thermocouple, 1 x wired digital probe, 1 x wireless (Bluetooth) or 1 x testo smart probe Operating temperature: -20 to +50°C Storage temperature: -20 to +50°C Battery: 3 x AA batteries Battery life: Approx. 12 hours Weight: 250g Dimensions: 154 x 65 x 32mm