Automated Rain Gauge (ARG)
Tipping-bucket rainfall telemetry recording precipitation as fine as 0.2 mm with automated cloud logging and flash-flood alerts.
Introduction
Every drop counted. Accurate rainfall data delivered instantly.
Manual rain measuring jars are prone to reading delays, evaporation loss, and human error. Bulfro Aqua ESG’s Automated Rain Gauge (ARG) delivers unattended, calibrated precipitation telemetry. Using a gold-standard dual tipping bucket mechanism, every 0.2 mm increment is magnetically counted and transmitted wirelessly over cellular or LoRa networks.
Field Intelligence
High-Accuracy Catchment & Flood Visibility
Whether managing agricultural irrigation schemes, reservoir dam discharge, smart city stormwater drains, or mine dewatering networks, accurate rainfall measurement is the critical leading indicator.
Precipitation collected in the knife-edge funnel flows through a stainless debris screen into an internal siphon that regulates drop velocity. Each tip triggers a hermetically sealed reed switch, timestamped down to the second.
Core Capabilities
Precision Tipping Bucket Meteorology
Engineered for meteorological departments, agricultural universities, and industrial disaster management.
0.2 mm Bucket Resolution
Ultra-sensitive balanced dual tipping spoon registers the lightest morning drizzle as accurately as heavy tropical downpours.
0.2 mm or 0.5 mm OptionAnti-Clog Mesh Filter
Internal stainless steel mesh filter screens leaves, bird debris, and insects, ensuring unobstructed flow through the collector.
Zero-Clog Debris FilterWireless Cellular & LoRa
Timestamped rainfall records transmitted over 4G/GPRS or long-range LoRaWAN to the Bulfro Aqua ESG Cloud analytics dashboard.
4G / GPRS / LoRaWAN60-Day Solar Autonomy
10W high-efficiency solar panel with industrial LiFePO4 battery pack keeps the station running through 60 days of continuous overcast skies.
Solar + Li-Ion InternalAuditable ESG Water Accounting
Pair ARG rainfall totals with groundwater recharge and surface harvesting numbers to prove net-water positive certification.
ESG & GRI 303 ReadyEngineering Data
Technical Specifications
| Specification | Details |
|---|---|
| Measurement Principle | Balanced Dual Tipping-Bucket with Magnetic Reed Contact |
| Rainfall Resolution | 0.2 mm per tip (0.5 mm optional for heavy tropical zones) |
| Catchment Funnel Diameter | 200 mm (WMO / IMD standard knife-edge rim) |
| Measurement Accuracy | ±1% up to 25 mm/hr; ±2% up to 100 mm/hr rainfall intensity |
| Body Material | Corrosion-resistant SS304 Stainless Steel or UV-stabilized FRP |
| Debris Protection | Removable SS304 filter screen with syphon drop rate regulator |
| Telemetry & Transmission | 4G / GPRS / GSM / LoRaWAN telemetry with RS-485 Modbus RTU |
| Logging Interval | Configurable from 1 minute to 60 minutes (15 min standard) |
| Power Supply | 10W Monocrystalline Solar Panel + LiFePO4 battery pack |
| Battery Autonomy | > 60 days continuous operation in overcast conditions |
| Operating Temperature | -20°C to +70°C |
| Mounting Structure | Heavy-duty galvanized pole mount with leveling bubble indicator |
ARG Series Rain Gauge Models
| Model Code | Material | Resolution | Telemetry |
|---|---|---|---|
| BARG-SS-200 | SS304 Stainless Steel | 0.2 mm / tip | 4G / GPRS Solar Telemetry |
| BARG-FRP-200 | Fiberglass (FRP) | 0.2 mm / tip | 4G / GPRS Solar Telemetry |
| BARG-LORA-200 | SS304 Stainless Steel | 0.2 mm / tip | LoRaWAN Long Range (10 km) |
Media Gallery
Hardware & Collector Unit
Why Choose Bulfro Aqua ESG ARG
Engineered for Rugged Field Weather Stations
Zero maintenance tipping bucket mechanics built to withstand years of harsh monsoon weather.
Live Intensity Cloud Analytics
Automated calculation of peak rainfall rate (mm/hr), cumulative hyetographs, and return-period comparisons on cloud dashboards.
Cloudburst & Flood Alarms
Set dynamic intensity thresholds. If precipitation exceeds 50 mm in an hour, emergency SMS broadcasts trigger to municipal response teams.
Corrosion-Proof SS304 Body
Crafted from heavy-gauge stainless steel with seamless welds, ensuring zero rust, UV deformation, or bucket sticking for over 10 years.
Offline Flash Data Memory
If cellular networks go down during catastrophic storms, the onboard memory caches every rainfall tip and re-syncs once the signal returns.
Product Configuration
Select the Rain Gauge Setup for Your Catchment
Tailor your automated rain gauge configuration for coastal weather, industrial plants, or agricultural watersheds:
Housing Material
Telemetry
Mounting Kit
Weather Sensors
Complete Turnkey Hydrological Setup
Bulfro Aqua ESG provides site selection guidance, precision mast mounting, bubble-level calibration, solar alignment, and verified cloud telemetry setup.
Frequently Asked Questions
Frequently Asked Questions
Find direct answers to common questions regarding ARG tipping bucket accuracy, maintenance, solar power, and telemetry.
Rain enters through the 200 mm collector funnel and drains through an anti-clog filter into one side of a balanced two-compartment bucket. When 0.2 mm of water collects, the bucket tips, emptying its contents and positioning the second bucket. Each tip passes a magnet across a hermetically sealed reed switch, generating a pulse logged by the telemetry unit.
Bulfro Aqua ESG ARG incorporates a precision internal syphon regulator that stabilizes the water exit speed into the tipping bucket. This prevents water splashing or under-registration during intense tropical downpours, maintaining ±1% accuracy up to 25 mm/hr and ±2% up to 100 mm/hr.
No. The ARG is completely self-powered by a 10W monocrystalline solar panel and an internal rechargeable lithium battery. The system operates autonomously for over 60 days without any direct sunlight.
The standard transmission interval is every 15 minutes. However, during active rain events, the system can dynamically switch to event-triggered transmission (every 1 to 5 minutes) to give real-time early warning of sudden cloudbursts.
Routine maintenance is minimal: inspect and rinse the removable stainless steel filter screen before and after monsoon season to ensure no leaves or airborne dust block the funnel, and verify the bubble level indicator on the mounting base.
Yes. The telemetry logger supports RS-485 Modbus RTU output for local PLC/SCADA integration as well as REST APIs and MQTT webhooks for automated ingestion into municipal smart city disaster dashboards.
Deploy Automated Rainfall Intelligence Across Your Watershed
From flood forecasting and agricultural planning to rooftop rainwater audit verification, Bulfro Aqua ESG’s Automated Rain Gauge provides continuous, certified data. Speak with our hydrological team today for site mounting recommendations.