3S-RG

Rain Gauge with Modbus RTU Output

SEVEN Rain Gauge is designed to accurately measure the rainfall with a collection area of 200 cm² using the reed relay with the principle of tipping buckets. The sensor housing is made of seawater resistant anodized aluminum, making it extremely durable and resistant. The measured value can be transmitted to monitoring instruments, dataloggers and other receiving units via the serial RS485 interface with Modbus RTU protocol.

Description

3S-RG-MB – Rain Gauge with Modbus RTU Output

The 3S-RG-MB is a tipping bucket rain gauge designed for precise rainfall measurement, ideal for environmental monitoring and PV plant applications. It uses a reed relay mechanism with a 200 cm² collection area to accurately record precipitation. Data is transmitted via Modbus RTU (RS485) to monitoring systems, dataloggers, or other receivers.

Key Features:

  • Accurate rainfall measurement with tipping bucket technology

  • Durable seawater-resistant anodized aluminum housing

  • Easy integration via RS485 Modbus RTU

  • Compact and weatherproof design (IP65)

  • Plug-and-play installation with 3 m UV-resistant cable

Technical Specifications:

  • Measuring Range: 0–600 mm/h

  • Accuracy: ±1% (0–30 mm/h), ±2% (30–100 mm/h), ±5% (100–600 mm/h)

  • Resolution: 0.2 mm

  • Data Output: RS485 up to 38400 Baud

  • Power Supply: 12–30 V DC | Power Consumption: 35 mA max @ 24 V

  • Operating Temperature: 0°C to +85°C

  • Dimensions: Ø 160 × 257 mm | Box: 70.2 × 82 × 55 mm

  • Weight: 1.4 kg | IP Rating: IP65

  • Housing Material: Anodized Aluminum | Box Material: Plexiglass

Applications:

  • Rainfall monitoring for PV plants and meteorological stations

  • Integration with SCADA or datalogger systems

  • Environmental and industrial weather monitoring