Testo 440

Product Highlights

This testo 440 kit is great for carrying out measurements in ventilation ducts. The testo 440 air velocity and IAQ measuring instrument and its hot wire probe (Ø 0.35") with temperature sensor can all be safely stored in the included case.

•  Intuitive: Clearly structured measurement menus for volume flow, parallel determination of air velocity, and air temperature in ventilation ducts 
• Convenient: Integrated telescope with scaling can be extended up to 2.8 feet, making it easy to carry out all kinds of measurements 
• Reliable: Absolute pressure compensation, internal memory for data storage, and USB port for data export 
• Versatile: Your testo 440 setup can be expanded with a large selection of digital probes
• Temperature - NTC
• Measuring range -40.0° to 302.0 °F / -40 to +150 °C
• Accuracy ±0.7 °F (-40° to -13.2 °F) / ±0.4 °C (-40 to -25.1 °C) ±0.5 °F (-13° to 166.8 °F) / ±0.3 °C (-25 to +74.9 °C) ±0.7 °F (167° to 211.8 °F) / ±0.4 °C (+75 to +99.9 °C) ±0.5 % of mv (Remaining Range)
• Resolution 0 °F / 0.1 °C
• Temperature - Type K TC
• Measuring range -328.0° to 2498.0 °F / -200 to +1370 °C
• Accuracy ±(0.5 °F + 32.5 °F) / ±(0.3 °C + 0.3 °C)
• Resolution 0 °F / 0.1 °C
• Dimensions 6.1 x 2.6 x 1.3 in. / 154 x 65 x 32 mm
• Operating temperature -4.0° to 122.0 °F / -20 to +50 °C
• Connectable probes 1 x digital probe with cable or 1 x Temperature NTC TUC, 1 x digital Bluetooth probe or testo Smart Probe, 1 x Temperature TC Type K
• Battery type 3 x AA 1.5 V
• Battery life 12 h (typically vane measurement)
• Data transfer USB interface
• Storage temperature -4.0° to 122.0 °F / -20 to +50 °C
• Weight 8.8 t1 n2{#0.0} t2 n3{#0.0} {%S3} / 250 g

Each Unit Includes

• testo 440 air velocity and IAQ measuring instrument, 3 AA batteries, USB cable, and calibration protocol (0560 4401) 
• Hot wire probe (Ø 0.35") with fixed cable (length 5.6'), including temperature sensor with telescope (extendable to 2.8') and calibration protocol (0635 1032) 
• Basic case for testo 440 and 1 probe