Product Name : EYC FTM84/85 Industry degree high accuracy thermo air velocity transmitter
Product
sensor type 
thermal mass flow sensor
1 m/s ; 2 m/s ; 5 m/s ; 10 m/s;20 m/s;40 m/s ; 60 m/s
air velocity min. measuring range 
0.15  m/s
PT 1000, 0 ... 80 ℃
accuracy ( + 25 °C )
air velocity : ± 1.5 % F.S.  ( nonlinear error, hysteresis error, repeatability error  )
temperature ( > 2 m / s ) : ± 0.3 ℃
thermal sensitivity temp. error : 0.05 % / 
output
0 ... 20 mA / 4 ... 20 mA / 
0 ... 1 VDC / 0 ... 5 VDC / 0 ... 10 VDC
signal connection
3-wire
load resistance
≦ 500Ω(current output) / ≧ 10KΩ(voltage output)
overvoltage protection
DC:< 45V;AC:< 40V
power supply
8 ... 35VDC / 12 ... 30VAC
protection degree
IP 67