Item Type: Wired Weather Meter
Product Size: Approx. 165x70mm / 6.5x2.8in
Gross Weight: 457g/16.1oz
Material: ABS, Aluminum Alloy
Supply Voltage: DC5V
Communication Type: TTL (for Modbus RTU)
Cable Length: 2 Meters
Operating Environment: 0‑100%RH, ‑40℃ to +60℃
Protecting Grade: IP64
Built in Sensors: Wind Speed, Wind Direction, Temperature, Humidity, Air Pressure
Widely Used: Wind Direction Measurement in Greenhouse, Environmental Protecting, Ship, Wharf, Aquaculture, Advertisement Gate, Meteorology, Ocean, Environment, Airport, Harbor, Laboratory, Industry, and Transportation Environment.
Wind Speed: 0 to 45m/s range, start wind speed 0.8m/s, ±(0.5+0.02V)m/s accuracy, 0.1m/s resolution, 40mW power consumption
Wind Direction: 0 to 359° range, ±3° accuracy, 1° resolution, 40mW power consumption
Atmospheric Temperature: -40 to 80°C range, ±0.3°C accuracy, 0.1°C resolution, 1mW power consumption
Atmospheric Humidity: 0 to 100%RH range, ±5%RH accuracy, 0.1%RH resolution, 1mW power consumption
Atmospheric Pressure: 300 to 1100hPa range, ±0.5 hPa (25°C) accuracy, 0.1 hPa resolution, 0.1mW power consumption
Sensor Total Power Consumption: Wiring Diagram:
TTL signal output, the sensor wire sequence is defined as follows:
Red: power positive VCC
Green: power negative GND
Black: TXD
Yellow: RXD
Note: Make sure the wiring is correct before sending power.
Communicating Protocol:
All commands in the manual of weather meter are RTU protocol format commands. All have been configured at the factory, if you need to modify the protocol, refer to the relevant commands or ask for help. Baud rate 9600, 8 data bits, 1 stop bit, no check. 2 frames of data communicating interval of at least 500ms. The default address is 1, and the RTU communicating format is as follows:
Number of address bytes: 1 byte
Number of command bytes: 1 byte
Number of register address bytes: 2