• VP-TX-100-SS Gas Sensor Transmitter

The Model: VP-TX100-SS

The VP-TX-100-SS is the inexpensive alternative to gas detection and environment monitoring. The combination of analog 4-20 mA output and the  RS-485 digital port makes this unit the ideal choice to connect to analog controllers and digital PLC’s. The wide choice of Solid State Gas Sensors provides accurate level readings with a life span of up to 7 years under normal applications.

The on board temperature sensor and optional remote temperature sensor can be read directly from the RS-485 port or with the LCD display.

The user interface consists of a Status LED, three pushbuttons, an audible and a 2 line x 8 character backlit LCD. The Status LED indicates OK, Low, Mid, High and Fault Alarms. The three pushbuttons and LCD provide a convenient calibration method. There are NO potentiometers, all calibration, sensor selection and setup is performed digitally. All variables are stored in the processor’s flash memory.


  • 5mm Barrel Plug and Terminal Block
  • Solid State Sensor Input
  • TGS-826 – Ammonia Gas (NH3)
  • TGS-832 – Freon (R-134a)
  • TGS-813 – Methane, Propane (CH4, C3H8)
  • TGS-822 (MQ3) – Carbon Monoxide, Alcohol (CO, ALC)
  • On-Board Temperature sensor for Sensor Compensation
  • Remote Temperature Sensor Input (10K Therrmistor)
  • 4-20 mA Output, 1000 Ohm Drive at 24 VDC Power Input
  • Signal Strength LED
  • RS-485 Output, MODBUS RTU Protocol
  • Selectable 9600 or 19.2K Baud
  • Rx and Tx LEDs, RJ45 Jack
  • Flash Microprocessor (PIC18F Series) for Program Variable Storage and Digital Calibration
  • LCD Display 2 Line x 8 Character
  • Status Alarm LED, OK, Low, Mid, High, Fault Alarm
  • Three pushbuttons, ENTER, UP, DOWN
  • Audible

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VP-TX-100-SS Gas Sensor Transmitter

  • Product Code: VP-TX-100-SS
  • Availability: In Stock
  • $0.00

  • Ex Tax: $0.00