Testo 0563 4200

The hood features a unique flow straightener, which significantly improves measurement accuracy, saving you valuable time on difficult tasks  The testo 420 control unit can be tilted for a more convenient view of the display  The included Bluetooth / app feature allows for wireless connection to mobile devices, for remote monitoring, as well as remote operation  The testo 420 app can send measurement reports directly from the work site via email  For additional convenience, there is an optional tripod when working with high ceilings, as well as four additional flow hood sizes available for complete versatility The testo 420 is also a CEC approved air flow capture hood Temperature NTC Measuring range -4° to 158 °F / -20 to 70 °C Accuracy ±1 °F (32° to 158 °F) / ±0.5 °C (0 to 70 °C) ±1.4 °F (-4° to 32 °F) / ±0.8 °C (-20 to 0 °C) Resolution 0.1 °F / 0.1 °C Reaction time 45 sec (t90) Humidity Capacitive Measuring range 0 to 100 %rH Accuracy ±1.8 %rH 3 % of mv at 77 °F / ±1.8 %RH 3 % of mv at 25 °C (5 to 80 %rH) Resolution 0.1 %rH Differential Pressure Measuring range -0.480 to 0.480 InH₂O / -120 to 120 Pa Accuracy ±2 % of mv 0.002 InH₂O at 72 °F, 405 InH₂O / ±2 % of mv 0.5 Pa at 22 °C, 1013 hPa Resolution 0.001 InH₂O / 0.001 Pa Reaction time 1 sec (t90) Absolute Pressure Measuring range 280 to 440 InH₂O / 700 to 1100 hPa Accuracy ±1 InH₂O / ±3 hPa Resolution 0.1 InH₂O / 0.1 hPa Reaction time 1 sec Volume flow Measuring range 24 to 2354 CFM / 40 to 4000 m³/h Accuracy ±3 % of mv 7 CFM at 72 °F / ±3 % of mv 12 m³/h at 22 °C 405 InH₂O (50 to 2060 CFM) / 1013 hPa (85 to 3500 m³/h) Resolution 1 CFM / 1 m³/h Reaction time 1 sec (t90) Dimensions 24 x 24 in. (Standard hood) / 610 x 610 mm (Standard hood) Operating temperature 23° to 122 °F / -5 to 50 °C EU-/EG-guidelines EU-guideline 2014/30/EU Battery type Alkaline, type AA Battery life 40 h Display size 3.5 Display function Dot matrix Display ligthing with illumination Interface Micro-USB, Bluetooth® 4.0 wireless technology Memory 2 GB (internal) Storage temperature -4° to 140 °F / -20 to 60 °C Weight 102 oz. / 2900 g > Each Unit Includes testo 420 air flow capture hood base with Bluetooth 24 x 24 capture hood with flow straightener USB cable Batteries Soft case with telescoping handle Wheels