Based on heat conduction principle, the sensor probe of air velocity transmitter ST81 is made of MEMS technology, which has the characteristics of high measurement accuracy, wide measurement range, good stability and strong environmental adaptability. It is an ideal choice for wind speed measurement in HVAC, duct air volume measurement, process and environmental control and other applications.
Widely used, suitable for pipeline, environmental control and other scenarios
Accuracy up to 0.01m/s
The protection level is IP65
| Range① | 0-10m/s,0-15m/s,0-20m/s,0-30m/s |
| Resolution | 0.01m/s |
| Accuracy | ±(0.2m/s+3%of mv)(20℃,45%RH and 1013hPa) |
| Probe length | 210mm(optional) |
| Display | Optional LCD with unit display and backlight |
| Housing material | ShellPC, Probe Pa6 |
| Operating conditions | |
| Temperature | Working:-10...60°℃[+14...+140°F] Storage:-20...80℃[-4...+176°F] |
| IP grade | Shell IP65, Probe IP20 |
| Electrical overview | |
| Working Voltage | 24VAC/DC±20% |
| Output mode | RS485/Modbus,0...10VDC/4...20mA(3-wire) |
| Output load | ≤500Ω/(Current output), ≥2KΩ(Voltage output) |
| Electromagnetic compatibility | EN 61326-1 |
