LPT-A Analog Transmitter

All models in the LPT series of transmitters that come standard with a water / dust tight, corrosion resistant ABS / polycarbonate enclosure with a hinged, secured door. An optional splash guard is also available for water spray or wash down applications.

Automated calibration and other maintenance procedures are simple and easily performed in the field, and our proprietary Calibration Extending Firmware (CEF) takes into account the aging of the sensors so that less frequent calibrations are acceptable in non-critical applications.

The LPT-A is an economical, single sensor, analog transmitter available with a wide range of sensors and sensor types including electrochemical, solid state, and catalyic. It features three-wire VDC or four-wire VAC power, jumper selectable 4 - 20 mA or 0 - 10 VDC analog output, standard dry contact relay (2 amps @ 30 V SPDT), automatic thermal resetting fuse, temperature compensation, back lit LCD digital display, and audible alarm, all in a RoHS compliant package.


  • 3-wire VDC or 4-wire VAC power
  • 24 volt DC or AC power (nominal)
  • Linear 4 - 20 mA or 0 - 10 volt output signal
  • 1 dry contact relay, 30 volt 2 ampere maximum
  • Standard water / dust tight, corrosion enclosure (drip proof)
  • Available with electrochemical, solid state, or catalytic sensor
  • Single sensor: electrochemical, catalytic for combustibles (internal or remote), solid state for refrigerants or TVOCs (internal or remote)
  • Graphic LCD display (user selectable function)
  • Audible alarm
  • Includes sensor CEF (calibration extending firmware)
  • Auto resetting fuse
  • Automated calibration procedure
  • RoHS compliant package
  • Optional splash guard, heater, and logger


  • Parking Garages
  • Repair Shops
  • Ice Cleaning Machine Rooms
  • Manufacturing Plants
  • Maintenance facilities
  • ... and many more

Please contact EnviroMed for more information on this product.

Data sheet here