Dwyer GSTA transmitter for gas detection supports electrochemical cell sensors for carbon monoxide (user-selectable range from 0-50 to 0-500 ppm) or nitrogen dioxide (0-10 ppm). Switch-selectable normal or reverse outputs: 4-20 mA, 0-5, 1-5, 0-10, and 2-10 VDC. IP64-rated UV-resistant glass-filled polycarbonate enclosure. CE approved.
Commonly used for measuring the gas concentration in underground parking garages and loading docks or mechanical rooms. Typical coverage from 5000 to 7500 square feet.
- Field-replaceable electrochemical cell sensors for carbon monoxide (user-selectable range from 0-50 to 0-500 ppm) or nitrogen dioxide (0-10 ppm)
- Accuracy (at time of calibration): ±2% full scale for CO, ±3% full scale for NO2. Output drift <5% per year in air
- Response time <45 seconds to 90% CO, <25 seconds to 90% NO2
- Power requirements: 10-35 VDC for current output, 15-35 VDC or 15-29 VAC for voltage output
- Calibration using onboard pushbuttons on LCD models, or using optional A-449 remote LCD display
- Duct or wall mount models
- See Dwyer GSTC for models with BACnet or Modbus communications


| Is FM | No |
|---|---|
| Gas Detector Use | Fixed |
| Gas Type | Toxic |
| Gas Detector Technology | Electrochemical Cell |
| Gas or Flame | Gas |
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