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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.
SDI-12 and RS485 with supported protocols UMB-Binary, UMB-ASCII, Modbus-RTU, Modbus-ASCII, and XDR.
All-in-one housing concept of a compact weather sensor combining several measurement parameters in one housing with only a single cable connection.
Maintenance free operation as there are no moving parts that can wear out.
| Analogue inputs | 1 |
| Solar Radiation | Accuracy: 5 % Measuring range: Maximum operational irradiance; 1400 W/m 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) | 150 x 258 mm |
| Communication | SDI-12 and RS485 with supported protocols UMB-Binary, UMB-ASCII, Modbus-RTU, Modbus-ASCII, XDR |
| Operating temp range 1 | -50 - +60 C |
| Operating humidity | 0 - 100 % |
| Casing IP Rating | IP66 |
| Air Pressure | Accuracy: 0.5 hPa (0 - +104 F) or 0.5 hPa (0 - +40 C) Measuring range: 300 - 1200 hPa Measurement technology: MEMS capacitive |
| Cable Length | 33 ft (10 m) |
| Cable Connection | Open wires |
| Weight EU | 3.3 lb ( 1.5 kg) |
| Battery | No |

Price:
Minimum Order Quantity : 5 Pieces
IP Rating : IP66
Interface : RS485, UMB, MODBUS
Cable Length : 10 meters standard
Response Time : 1 Second
Features : Compact, maintenancefree, allinone design
Minimum Order Quantity : 1 Unit
IP Rating : IP66
Interface : RS485, SDI12, Modbus, UMB
Cable Length : Typically 2.5 m (Optional)
Response Time : Temperature: <30 s
Features : Maintenancefree, compact design, rugged, UVresistant
IP Rating : IP66
Interface : RS485, SDI12, UMB, analog output option
Cable Length : Default 10 m (other lengths on request)
Response Time : Wind 1 s; Temperature 30 s
Features : No moving parts, maintenance free, allinone sensor, high reliability, suitable for harsh environments
IP Rating : IP66
Interface : RS485, SDI12, Modbus
Cable Length : Up to 10 m (recommended)
Response Time : Temperature: <30 s, Humidity: <10 s, Wind: <1 s
Features : Heated sensors, maintenancefree, compact design, no moving parts