Weber 4221.4xM S141 flow switch

flow switch with analogue temperature output in a rugged stainless steel version (relay output, VDC, Binder plug) 

4220.4xM S141 - for water-based media
4221.4xM S141 - for oil-based media

Operating principle: calorimetric (thermal)

Measuring range: 
0 - 20 cm/s to 0 - 300 cm/s (water)
0 - 30 cm/s to 0 - 300 cm/s (oil)
fully adjustable

Medium temperature: -20 °C to +80 °C
Temperature output: -10 °C to +80 °C ? 4 - 20 mA

Protection class: IP67
Options: probe lengths, wetted materials, output configuration
Operating voltage: 18 - 30 VDC
S141 = Binder plug