Calorimetric Flowswitch, Compact Version,Connection: 3/4",Max. temperature: 80 °C (120 °C for KAL-KH

Calorimetric Flowswitch, Compact Version
MODELO: KAL-KH5-4-20-S-PG3
[KAL-KH5] 
Operating principle: Calorimetric 
Mounting position: all directions
Indication: DUO-LED and LED-chain
Max. temperature: 80 °C (120 °C for KAL-KH)
Max. pressure: 100 bar
Protection class: IP 65
Connection thread: NPT
[4] Probe material: st.st. 1.4571
[20] Connection: 3/4"
[S] Output: N/O 
[PG3] Electron. Connection: M 16x1,5 PNP/NPN 24 VDC
Datasheet:
http://www.koboldmessring.com/fileadmin/koboldfiles/pdf/gb/s5gb_kal-k.pdf