Dwyer GSTA-C-D Carbon Monoxide Transmitter is a highly accurate and reliable product for monitoring CO and NO2 levels. It has a low drift rate of <5% per year and operates in a temperature range of -4 to 122°F (-20 to 50°C). The transmitter provides an output signal of 4-20 mA, 0-5 V, or 0-10 V and has a quick response time. It features a field replaceable electrochemical sensor with a lifespan of 2 years and has an IP64 enclosure rating. The device is easy to calibrate and offers switch selectable range and output options. With its wide coverage area and high resolution, this transmitter is suitable for various applications.