The testo 420 accurate, lightweight flow hood with Bluetooth is the precise and convenient solution for measuring volume flows at supplies and returns. Handling this capture hood with flow straightener and tiltable display is especially easy with the low weight of less than 6.2 lbs. and ergonomic handles. This kit also includes a full NIST calibration certificate.
|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)|
|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|
|Measuring range||280 to 440 InH2O / 700 to 1100 hPa|
|Accuracy||±1 InH2O / ±3 hPa|
|Resolution||0.1 InH2O / 0.1 hPa|
|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)|
|Delivery Scope||0563 4200 -- testo 420 accurate, lightweight flow hood base with Bluetooth; USB cable, batteries, soft case w/ telescoping handle and wheels
400563 4200 -- testo 420 accurate, lightweight flow hood base with Bluetooth; USB cable, batteries, soft case w/ telescoping handle and wheels, and NIST certificate
All orders are shipped same-day if the order is received by 1:00 PM Central Time. We ship worldwide.
UPS Hoilday Delivery Schedule
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