STD290 Average Duct Temperature Sensor

The STD290 is a mean value temperature sensor with four NTC thermistors spaced along a cable, designed for measuring air temperature in ducts by mounting on a grid or suspended wires. It includes a junction box with amplifier, offers specified accuracy across a range from -25°C to 100°C, and has a time constant of approximately 120 seconds at 1 m/s air speed.