Flow Indicator and Switch with Paddle and Bellows. Output 1: microswitch/SPDT. Connection: G 3/4 mal

Flow Indicator and Switch with Paddle and Bellows
Brand: Kobold (Alemania)
Model: DWU-1-5-R20-3-R-T-0                 
[DWU-1]:
Operating principle: paddle-bellow
Indication: pointer indication
Flow direction: in direction of the arrow
Output 1: microswitch/SPDT
Max. Temperature: 100 °C
Connection: male thread
[5]: Material combination: Brass
[R20]: Connection: G 3/4 male
[3]: Signal lamp: 24 VDC
[R]: Flow direction: flow from right to left
[T]: Location of indicator: above lead
[0]: Options: w/o option
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Datasheet: http://www.kobold.com/uploads/files/dwu-gb-flow.pdf