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The WS301-UMB is a compact all-in-one weather sensor for measurement of temperature, relative humidity, radiation (spectral flat Class C, K&Z CMP3) 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.
Maintenance free operation as there are no moving parts that can wear out.
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.
| Casing IP Rating | IP66 |
| Operating temp range 1 | -50 - +60 C |
| Cable Length | 33 ft (10 m) |
| Operating humidity | 0 - 100 % |
| Cable Connection | Open wires |
| Non-stability | 1% (change/year) |
| Non-linearity | 1.5 % (0 - 100 W/m) |
| Material enclosures | Plastics (PC) |
| Weight EU | 3.3 lb ( 1.5 kg) |
| Interface | RS485 2 wire Baud rate: 1200 - 38400 bit/s (Standard: 19200) or SDI-12 |
| Battery | No |
| Solar Radiation | Accuracy: 5 % Measuring range: Maximum operational irradiance; 2000 W/m Measurement technology: Kipp & Zonen CMP3 Spectral accuracy: 300 - 2800 nm Response time: 6 s (63 %), 18 s (95 %) Non-linearity: 1.5 % (0 - 100 W/m) Non-stability: 1 % (change/year) |
| Analogue inputs | 1 |
| Dimensions (free text) | 150 x 268 mm |
| 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 |
| Relative humidity | Accuracy: 2 % RH Measuring range: 0 - 100 % RH Measurement technology: Capacitive |
| Communication | SDI-12 and RS485 with supported protocols UMB-Binary, UMB-ASCII, Modbus-RTU, Modbus-ASCII, XDR |
| Power supply | 12 - 24 VDC |
| 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 |

Price:
Price 238000.0 INR / Unit
Minimum Order Quantity : 1 Unit
Resolution : Wind: 0.1 m/s, Temp: 0.1C, Humidity: 0.1% RH
Output : RS485 Modbus, UMB Protocol
Sensor Type : Ultrasonic, Capacitive, Piezoelectric, Electronic
Product Type : Smart Weather Sensor
Minimum Order Quantity : 5 Pieces
Resolution : Wind 0.1 m/s; Temperature 0.1 C; Relative Humidity 0.1%; Air Pressure 0.1 hPa
Output : UMBBinary, UMBASCII, SDI12, Modbus, 2 analog outputs
Sensor Type : Ultrasonic (winds) / Capacitive (humidity) / Precision thermistor (temperature) / Photodiode (brightness)
Product Type : Smart Weather Sensor
Price 160000.0 INR / Piece
Minimum Order Quantity : 1 Piece
Resolution : Wind Speed: 0.1 m/s, Wind Direction: 1, Temperature: 0.1C, Humidity: 0.1 %RH, Pressure: 0.1 hPa
Output : Digital: RS485 (Modbus RTU), SDI12, NMEA 0183, UMB Protocol
Sensor Type : Ultrasonic (Wind), Capacitive (Humidity), Pt100/Pt1000 (Temperature), Piezoresistive (Pressure)
Product Type : Compact Smart Weather Sensor
Price 112000.0 INR / Unit
Minimum Order Quantity : 1 Unit
Resolution : Temperature: 0.1C; Humidity: 0.1% RH; Pressure: 0.01 hPa
Output : RS485, Modbus, UMBBinary, ASCII, SDI12
Sensor Type : Capacitive humidity, PT100 temperature, MEMS pressure
Product Type : Smart Weather Sensor