Dwyer GSTA-N-LCD is a Nitrogen Dioxide Transmitter with an accuracy of ±3% FS. It has a 10-35 VDC power requirement and an IP64 enclosure rating. The transmitter features a field replaceable electrochemical sensor and has a response time of <25s to 90% NO2. It offers switch selectable output signals and has a coverage area of 5000 to 7500 sq ft. It also includes pushbutton zero and span adjustments and can be calibrated using the optional A-449 display.