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SMC Model 4001 Single Channel Controller - DIN Mount
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Gas detection controller simply redefined.

SMC Model 4001 Single Channel Controller - DIN Mount

The SMC Model 4001 Controller is a comprehensive hazardous gas detection monitoring system designed with flexibility and features to meet specific light industrial applications, such as wastewater. Its user-friendly design makes installation and operation a simple task.

View Datasheet:

The controller operator interface and menu navigation can be accessed on the controller using a simple rotary push button to select and enter parameters on a brightly illuminated color LCD. The display changes color depending on alarm state: Green is normal, Yellow is Warning, Red is Alarm, and Blue is Fault. The three relays are Form C SPDT, rated at 5 Amps to connect to notification systems and appliances. The relay action can be selected as Non-Latching or Latching with a remote acknowledge input. Modbus RTU output is provided for connection to various supervisory systems, or an optional gateway. The analog output is a 2-wire retransmission of the measured input for trending or recording.

Features & Benefits:

  • Modular design allows 2, 4, or 8 channel configurations
  • Industry standard DIN Mount
  • 0-20 mA analog input/output
  • Three 5 amp relays for field devices and notification systems
  • RS-485 Modbus RTU output for remote monitoring with Cloud connectivity 


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Based in Auckland, Accurate is one of the few 100% New Zealand owned and operated safety instrumentation companies in New Zealand today. This is in a market dominated by larger foreign owned companies, yet we continue to operate as a strong independent supplier to the NZ market.




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Mt Wellington
Auckland 1051

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Christchurch 8042