The explosion-proof air flow sensor can not only measure the air flow velocity speed, but also measure the air flow rate of the air duct as the air volume transmitter. It have ATEX certification for Hazardous area with the grade of Ex db IIC T6 Gb (-20℃≤Ta+80℃), Ex tb IIIC T85℃ Db (-20℃≤Ta+80℃).

It is waterproof and can be used outdoors or in high temperature environment.

Measurement range: 0-10m/s, 0-20m/s, 0-30m/s, 0-40m/s, 0-70m/s, 0-100m/s.......200m/s max
Maximum overload: 5 times of standard range
Output form: wind speed, air volume, 4-20mA, 0-10V, RS485, or DPDT relay
Accuracy class: 3% f · s
Display resolution: 0.01
Power supply voltage: 24VDC
Load resistance: ≤ 500 Ω
Long term stability: ± 1% f · s / year
Environmental relative humidity: 0-95%
Compensation temperature: 0-70 ℃
Working temperature: (split type can reach - 40-500 ℃)