All-in-one weather sensor WS302

air temperaturerelative humidity

The WS302-UMB is a compact all-in-one weather sensor for measurement of temperature, relative humidity, radiation and air pressure. It is part of the WS product family of professional intelligent measurement transducers with a digital interface for environmental applications. It has an integrated design with ventilated radiation protection. One external temperature or rain sensor is connectable. Benefits Flexible interfaces and telegrams SDI-12 and RS485 with supported protocols UMB-Binary, UMB-ASCII, Modbus-RTU, Modbus-ASCII, and XDR. All-in-one housing concept & easy installation All-in-one housing concept of a compact weather sensor combining several measurement parameters in one housing with only a single cable connection. Aspirated radiation shield Maintenance-free operation Maintenance free operation as there are no moving parts that can wear out. Specifications - Technical Attributes Analogue inputs - 1 Solar Radiation - Accuracy: 5 % Measuring range: Maximum operational irradiance; 1400 W/m² Measurement technology: Si-photodiode, optoelectric Non-linearity: n/a Non-stability: n/a Material enclosures - Plastics (PC) Relative humidity - Accuracy: ±2 % RH Measuring range: 0 - 100 % RH Measurement technology: Capacitive Air Temperature - Accuracy: ±0.4 °F (-4 - +122 °F) or ±0.2 °C (-20 - +50 °C), otherwise ±0.9 °F (˃ -22 °F) or ±0.5 °C (˃ -30 °C) Measuring range: -58 - +140 °F (-50 - +60 °C) Measurement technology: NTC Resolution: 0.1 °C (-20 - +50 °C), otherwise 0.2 °C Interface - RS485 2 wire Baud rate: 1200 - 38400 bit/s (Standard: 19200) or SDI-12 Power supply - 12 - 24 VDC Dimensions (free text) - Ø150 x 258 mm