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ORCH S4 Weather Station

Orch S4 Weather Sensors

Product Description

ORCH S4 is an Air Temperature / Humidity / Atmospheric Pressure / Light four-in-one compact weather instrument featuring solid performance, ultra-low power consumption, and easy installation. It integrates 4 sensors monitoring parameters of air temperature, humidity, barometric pressure, and light intensity. With strong robustness, it is particularly suitable to operate in severe environments both indoor and outdoor.

This weather instrument supports two universal standard protocols: MODBUS (MODBUS-RTU/MODBUS-ASCII) and SDI-12. With a wide range of power voltage from 3.6V to 16V and ultra-low power consumption, ORCH S4 has ensured durability to maintain long-term meteorological monitoring. The built-in data pre-processing enables users to unlock and complete new system development and integration in a convenient manner. This weather transmitter also comes with a solar radiation shield which effectively reduces the impact of solar radiation, thus further guarantees data accuracy. As an industrial-grade product, its IP66 enclosure also protects the sensors from rain, dust, and UV.


  • Solid Performance: high reliability, superior stability, and ultra-low power consumption
  • Compact Size: air temperature, humidity, barometric pressure, and light all in one
  • Universal Protocols: MODBUS RS-485 or SDI-12
  • Wide Range Power Supply: 3.6V ~ 16V
  • Strong Robustness: IP66 enclosure, suitable for outdoor applications and extremely complicated environment
  • User-friendly: with build-in data pre-processing, easy to use, integrate and install



  • Smart Agriculture
  • Greenhouse
  • Smart Industry
  • Smart Cities
  • Environmental Monitoring
  • Other IoT Sensor Applications


Power Supply3.6V ~ 16V
Current ConsumptionVin=16V: 3.6mA (typical)
Vin=12V: 4.7mA (typical)
Vin=5V: 11.0mA (typical)
Vin=3.6V: 14.5mA (typical)
Warm-up Time250ms (typical)
Scan Interval1s
Poll Rate1Hz
Response Time≤ 4ms
General Parameters
Product ModelSenseCAP ORCH S4
Power Supply3.6 ~ 16V
ProtocolMODBUS-RTU RS485/ MODBUS-ASCII RS485/ SDI-12 (v1.4)
IP RatingIP66 (water-proof box);IPX5 (solar radiation shield)
Operating Temperature-40 ℃~ +65 ℃
Operating Humidity0 ~ 100 %RH (non-condensing)
Barometric Pressure
Range-300-1100 hPa
Resolution-1 Pa
Relative Accuracy700 to 900 hPa
25 to 40 °C
±0.12 hPa
Absolutely Accuracy300 to 1100 hPa
-20 to 0 °C
±1.7 hPa
Absolutely Accuracy300 to 1100 hPa
0 to 65 °C
±1.0 hPa
Coefficient Offset
900 hPa
25 to 40 °C
1.5 Pa/K
Drift-±1.0 hPa/year
Air Temperature
Range-40 °C to +85 °C
Accuracy±0.2 °C
Resolution0.1 °C
Drift< 0.03 °C /year
Air Humidity
Range0 to 100 %RH
Accuracy±1.5 %RH
Resolution1 %RH
Drift< 0.25 %RH/year
Light Intensity
Range0 to 188000 Lux
Resolution0.045 Lux






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