Product details

PolyGard®2 Warning and Sensor Board WSB2
WSB2-A-220311000
Housing type A, 94 x 130 x 57 mm
24 V DC / AC
With 1x  alarm relay & 1x  fault relay (configurable as alarm relay in addition)
Without buzzer & status LED
Analog output & RS-485 with DGC Modbus  protocol
1x digital input
1x analog input 4–20 mA
Without display
2x  SC  mounting slot (diferent gas types!)
Without further options

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PolyGard® Sensor SC
SC2-E1125-A-L-00
Ammonia,   NH₃ 
Measuring range: 0–100 ppm (electrochemical sensor)
Sensor housing plastic (standard)
Without cable extension (standard)
For connection to SB/WSB/MSB/MSC, digital calibration, protection class: IP65
Not for cooling applications!