SISCO high-precision weighing rain gauge sensor delivers accurate rainfall measurement from 0 to 1000mm with 0.1mm resolution. Unlike traditional tipping bucket rain gauges, the weighing bucket rain gauge ensures stable data across all precipitation intensities. This rain gauge sensor features a self-draining function and freeze-resistant rain gauge design for reliable year-round performance.
All-Weather Multi-Phase Precipitation Measurement
- Measures rain, snow, sleet, and hail with consistent accuracy using the weighing bucket rain gauge principle.
- Provides 0.1mm resolution over a 0- 1000 mm measurement range, capturing everything from light drizzle to heavy downpours.
- Delivers real-time outputs including cumulative precipitation, rainfall intensity (mm/min), and total bucket weight.
- Performs reliably across -40°C to +60°C with built-in temperature compensation, while the freeze-resistant rain gauge design enables reliable operation in freezing conditions.
Smart System Integration and Low Maintenance Operation
- Automatically drains collected water when the bucket reaches 80% capacity, preventing overflow and ensuring uninterrupted monitoring.
- Supports both wired rain sensor RS485 (Modbus-RTU) and pulse outputs for flexible integration with existing data loggers and SCADA systems.
- Stores over 10 years of historical data onboard with built-in self-diagnostics for real-time status reporting and fault detection.
- Eliminates routine maintenance through its modular, wear-free design, as the weighing rain gauge has no tipping mechanism to clean or replace, requiring only occasional visual inspection.
Applications
SISCO high-precision weighing rain gauge sensor is widely used in hydrology, meteorology, agriculture, and environmental monitoring. It suits irrigation systems, flood warning, avalanche prediction, and remote weather stations requiring accurate solid/liquid precipitation data for mission-critical decision-making.
Agriculture And Forestry
Field Observation Station
Hydrological Station
Weather Station
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| Model | SISCO-RS-3001-CYL |
| Measurement Range | 0 ~ 1000mm |
| Resolution | 0.1mm |
| Accuracy | ±0.2mm (≤10mm); ±2% (>10mm) |
| Rainfall Intensity | 6 ~ 1800mm/h |
| Collector Aperture | Φ200mm, edge angle 40°~45° |
| Precipitation Types | Liquid, solid, and mixed |
| Operating Temperature | -40°C ~ +60°C |
| Temp. Measurement Accuracy   | ±0.5°C |
| Power Supply | 9 ~ 16V DC |
| Power Consumption | 0.15W |
| Output Interfaces | RS485 or pulse |
| Data Storage | >10 years |
| Clock Accuracy | ±2 minutes/year |
| Self-Draining | Auto-drain at 80% capacity |
| Enclosure Material | Corrosion-resistant alloy / stainless steel |
Dimensions (unit: mm)
Details
Q1: How does a weighing rain gauge differ from a tipping bucket rain gauge?
A1: A weighing rain gauge measures precipitation by continuously weighing the collected water, snow, or mixed precipitation, providing real-time mass-based data. In contrast, a tipping bucket rain gauge counts mechanical tips of a small bucket, which can miss drizzle or be less accurate during heavy downpours. The weighing bucket rain gauge delivers higher accuracy across all precipitation intensities and requires less frequent maintenance.
Q2: Can this rain gauge sensor work in freezing winter conditions?
A2: Yes. This rain gauge sensor features a freeze-resistant design that ensures reliable operation in temperatures as low as -40°C, making it ideal for measuring snow, sleet, and frozen mixed precipitation in cold regions without risk of ice blockage.
Q3: What output options does this wired rain sensor offer for system integration?
A3: This wired rain sensor supports both RS485 (Modbus-RTU) and pulse output interfaces. The RS485 option enables digital communication with data loggers, PLCs, and SCADA systems for remote monitoring, while the pulse output provides simple switch signals for basic irrigation controllers. Both options allow seamless integration into existing industrial rain sensor networks without complex configuration.
Tips: How to maintain weighing rain gauge data continuity during extended heavy rainfall without losing records?
Continuous precipitation can quickly fill the collection bucket, potentially causing overflow and data gaps if not managed properly. Key practices for ensuring uninterrupted weighing rain gauge monitoring include:
- Verify the auto-drain function before deployment. The weighing rain gauge automatically drains at 80% capacity to prevent overflow. Testing this feature after installation by filling the bucket with water and confirming drainage activates at the correct level is a critical step – a failed drain test is easier to address on the bench than during an active storm.
- Ensure the drain tube has a clear downward slope. The drainage line for the weighing bucket rain gauge should be free of kinks, loops, or upward sections that could trap water. A straight, gravity-favored path prevents residual water from freezing or blocking the outlet in cold weather conditions.
- Monitor remaining bucket capacity remotely when possible. Certain configurations of this high-precision weighing rain gauge sensor allow real-time bucket level readings via RS485. Using this data to anticipate drain cycles and schedule post-event maintenance is more effective than waiting for an overflow alert.
- Perform annual visual inspections and gentle cleaning. Although the self-cleaning design of the weighing rain gauge sensor reduces routine maintenance, sediment or debris may accumulate over time. An annual rinse with clean water and a visual check of the collector and drain port helps maintain weighing mechanism accuracy and ensures long-term operational stability.
Thank you for buying industrial test and measurement equipment on SISCO.com, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.
What is covered?
SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.
What is not covered?
- Product purchased from anyone other than a SISCO store or a SISCO authorized reseller.
- Expendable parts.
- Routine cleaning or normal cosmetic and mechanical wear.
- Damage from misuse, abuse or neglect.
- Damage from use of parts other than SISCO approved.
- Damage from use outside the product’s usage or storage parameters.
- Damage from use of parts not sold by SISCO.
- Damage from modification or incorporation into other products.
- Damage from repair or replacement of warranted parts by a service provider other than a SISCO authorized service provider.
- Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.
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