Hot wire kit for measurements in ventilation ducts. The Testo 440 air velocity & IAQ measuring instrument recognizes probes automatically and its structured measurement menus simplify the adjustment of air conditioning and ventilation systems. 
 - Structured measurement menu for volume flow
- Parallel display of 3 measuring values
- Integrated telescope that can be extended to 0.85m with scaling
- Absolute pressure compensation, internal data storage and USB port for data export
- Can be extended with a large portfolio of digital probes
 Contents 
Testo 440 air velocity & IAQ measuring instrument ( 3x AA batteries, USB cable and calibration protocol), Hot wire probe (� 9mm) (with fixed cable (length 1.7m) including temperature sensor with telescope and calibration protocol), Basic case (testo 440 and 1 probe).
Product details
| Air Velocity Range | 0m/s to 30m/s | 
| Beaufort Force | - | 
| Operating Temperature Min | -20°C | 
| Operating Temperature Max | 50°C | 
| Relative Humidity Range | - | 
| External Height | 154mm | 
| External Width | 65mm | 
| External Depth | 32mm | 
| Product Range | - | 
Other details
| Brand | TESTO | 
| Part Number | 0563 4400 | 
| Quantity | Each | 
| Technical Data Sheet EN |  | 
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