Flash Flood Disaster Monitoring And Early Warning Solutions

Why Early Warning Matters

• Unpredictable Climate – In regions like Indonesia, the wet dry season (Kemarau Basah) brings abnormal rainfall, increasing flood risks even during dry months.

• Minutes Save Lives – Flash floods can rise within minutes. Communities need instant alerts to evacuate safely.

• Data-Driven Protection – Real-time monitoring allows governments, industries, and residents to prepare and respond effectively.

	Beidou short message communication + 4G terminal Supports access to rainfall and water level sensors, and features built-in threshold algorithms for rainfall and water levels, providing automatic alarms when thresholds are exceeded. This device provides data transmission and monitoring and early warning for flash floods, geological disasters, power outages, and other situations.
	Simple Rainfall Alarm Station 4G Transmission and LoRaMesh | Real-Time Rainfall Collection  The Simple Rainfall Alarm Station is a rainfall monitoring and alarm device. The simple rainfall alarm consists of a rain sensor and a home alarm. The rain sensor monitors rainfall in real time and transmits rainfall data and alarm signals to the home alarm via wireless networking. The home alarm is installed in residents' homes and supports "single-site monitoring, multi-household alarms." This means that a single rain sensor can simultaneously transmit rainfall and alarm signals to all home alarms supporting the LoRa-MESH network. Suitable for low-lying and flood-prone villages, villages threatened by external flooding, and villages threatened by river networks.
	The solar-powered radar level sensor features an integrated design, integrating solar panels, a charge controller, batteries, a millimeter-wave radar water level gauge, a high-definition camera, an intelligent telemetry terminal, an ad hoc network module, and a multi-frequency, multi-mode communication antenna. It effectively meets the water level monitoring requirements for water storage in different river sections and ensuring safe flood control during the rainy season.
	Acoustic-Optical-Electronic Monitoring and Alarm Station for Flash Floods The On-Site Acoustic-Optical Monitoring and Alarm Station integrates traditional monitoring stations with acoustic-optical alarm functions. It provides real-time monitoring of rainfall and water levels in small watersheds, triggering automatic alarms (voice, flashing lights, etc.) when thresholds are exceeded. The system supports multi-channel data transmission (Ethernet, 4G, BeiDou, LoRaMesh) and features intelligent voice response, enabling precise early warnings via cloud-based alerts.
	The flash flood disaster monitoring and early warning platform monitors and conducts statistical analysis on factors such as water level, rainfall, equipment operating conditions, and alarm information in real time, providing a decision-making basis for flood control and drought relief command and dispatch, analyzing and determining warning rainfall and dangerous rainfall, and issuing timely warnings when the warning line is exceeded, ensuring that rainfall conditions are monitored in a timely manner and early warning information is issued in a timely manner. It can connect to national monitoring and early warning platforms provide real-time information services for disaster prevention and mitigation.
	Home Alarm 4G Transmission and LoRaMesh | Rainfall-Linked Home Alarm | UHF Voice Broadcast The home alarm is equipped with 4G public network and LoRaMesh ad hoc network communication capabilities. It can receive real-time rainfall and other warning information from rain gauges for display and broadcast. It can also receive warning information issued by county and township levels via the public network. The home alarm also supports UHF communication and can receive UHF voice broadcasts. In an emergency, the home alarm can directly broadcast warning information to villagers without the need for village committee staff to visit them, enhancing the effectiveness of warnings and facilitating rapid evacuation.

Our Solution: Smart Flood Monitoring System

BGT Hydromet’s solution integrates smart sensors, IoT communication, and PC platform, with an transponder  into a complete flood early warning system.

Rainfall & Water Level Monitoring

• High-precision sensors measure rainfall, river levels, and flow velocity in real time.

• Reliable operation in remote, harsh environments.

IoT Connectivity & Real-Time Data

• Instant transmission via wireless networks (LoRaWAN, GPRS, Beidou, or satellite).

• Seamless integration with central platforms and mobile apps.

Multi-Channel Early Warning

• Automatic alerts through SMS, sirens, voice alarms, and web platforms.

• Ensures communities and emergency teams are notified immediately.

AI & Predictive Analytics

• Data analysis and flood trend prediction using AI algorithms.

• Helps authorities act before flash floods occur.

Download Technical Brochure

Key Applications

Our Flash Flood Early Warning Solutions are adaptable to diverse environments:

• Mountainous Areas – Early detection of landslides and flash floods.

• Urban Drainage Systems – Prevent urban flooding with rainfall and water level monitoring.

• Agricultural Zones – Protect farmland and rural communities.

• Critical Infrastructure – Safeguard dams, reservoirs, bridges, and road networks.

Product Components Overview

 IoT Water Level Meter

• Designed as an all-in-one unit integrating solar panel, battery system, millimeter-wave radar water-level sensor, HD camera, telemetry terminal, self-organizing network module, and multi-band antenna.

• Uses FMCW (millimeter-wave) radar for non-contact, high-precision, low-power, rapid water-level measurements—unaffected by temperature, pressure, moisture, or debris.

• Adaptive dual-mode operation (“monitoring” and “observation”) enables intelligent tracking of sudden water-level rises and falls. Make your data accurately.

• Supports edge computing, with thresholds for critical water levels and rising rate, enabling local audible and visual alarms, while transmitting data to multiple data centers (provincial, municipal, county) via 4G and LoRaMesh. 

Simple Rainfall Station

• Employs tipping-bucket mechanism for accurate rainfall measurement, integrated with IoT communication. 

• Supports 4G transmission and LoRaMesh for robust data delivery and networking. 

• Low maintenance, solar-powered, and compatible with mesh-networked local alarm systems.

Horn Speaker (Audible and visual alarm Unit)

• 2X25W speaker, built-in 11000mAh lithium iron phosphate battery. Positioning information supports the reporting of longitude and latitude.

• The product supports both 4G public network communication and LoRaMesh self-organizing network communication capabilities simultaneously. The product can receive early warning information sent through the platform and local AD hoc network devices to issue audible and visual alarms.

• The sound and light alarm is a medium-power alarm device integrating communication, power supply, warning lights and speakers. This product adopts a highly integrated design, achieving a smooth installation experience of "connection upon power-on"

 Technical Summary Table

Proven Reliability

• Successful Case Study – In Southwest China, BGT Hydromet’s system provided early warnings for landslides and mudslides, preventing casualties and reducing damage.

• Market Leadership – BGT Hydromet holds over 32% market share in China’s flash flood early warning sector.

• Industry Expertise – As a standards-setting company, we deliver reliable, field-proven disaster monitoring solutions.

Why Choose BGT Hydromet?

• 15+ years of expertise in hydrometeorological monitoring

• Integrated solutions: sensors + communication + platform + alerts

• Designed for all-weather, 24/7 operation

• Trusted by governments, industries, and environmental agencies

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