An all new rugged, flow hood/balometer that is accurate, lightweight and comes complete with BlueTooth integration to your smart device!
California has among the strictest regulations in the country regarding energy and environmental impact. In order for instruments to meet compliance, precise specifications need to be met. The new testo 420 Flow Hood with Bluetooth and flow straightener has met these specifications and is now CEC compliant.
The 420 Flow Hood is a light, precise and convenient solution for measuring volume flows at supplies and returns and can be trusted for its accuracy. Handling is especially easy with the low weight of less than 6.2 lbs. and ergonomic handles.
Approved by the California Energy Commission (CEC) for use in as an Airflow Measurement Device for HVAC Forced Air Systems per the 2016 Building Energy Efficiency Standards (Title 24, Part6) Section 100.0(h) and Reference Residential Appendices Section RA3.3. Click Here for details.
-4Â° to 158 Â°F
Â±0.9 Â°F (32Â° to 158 Â°F)Â±1.4 Â°F (-4Â° to 32 Â°F)
0 to 100 %rF
Â±1.8 %RH + +3 % of measured value at +77 Â°F(5 to 80 %RH)
0 to 0.48 Inches water (0 to 120 Pa)
Â±2 % of measured value + 0.0002 IWC (+ 0.05 Pa)
0.001 Inches water (0.001 Pa)
23 to 2354 CFM (40 to 4000 mÂ³/h)
Â±3 % of mv + 12 mÂ³/h at +72 Â°F 1013 hPa (85 to 3500 mÂ³/h)
1 CFM (1 mÂ³/hr)
24 x 24 in. (Standard hood)
with back light
23Â° to 140 Â°F
-4Â° to 140 Â°F
6.4 lb. (2.9 kg)