Specializing in Industrial Automation & Data Collection Since 1984

Level Sensor

DCL 551

BD Sensors DCL 551 Stainless Steel Probe with RS485 Modbus RTU with Ceramic Sensor, from 0 … 40 cmH2O up to 0 … 200 mH2O, 39.5 mm Diameter

SKU: DCL 551 Category:

The stainless steel probe DCL 551 with RS485 interface uses the communication protocol Modbus RTU which has found the way in industrial communication as an open protocol. The Modbus protocol is based on a master slave architecture with which up to 247 slaves can be questioned by a master – the data are transferred in binary form. DCL 551 has been designed for hydrostatic level measurement in sewage as well as for viscous and pasty media. Basic element is a robust and high overpressure capable capacitive ceramic sensor.


  • Nominal pressure: from 0 ... 40 cmH2O up to 0 ... 200 mH2O
  • Output signal: RS485 with Modbus RTU protocol
  • Special characteristics
  • diameter 39.5 mm
  • excellent long term stability
  • especially for sewage, viscous and pasty media
  • Optional version:
  • diaphragm ceramics Al2O3 99,9%