Product Introduction
The GLD3100 liquid leakage sensor can monitor the leakage situation in the environment in real time. Once a leakage is detected, the controller will issue an alarm and transmit the leakage information through the RS485 communication interface, while also activating a relay to output a switching signal. This leakage controller has been programmed according to the MODBUS-RTU protocol, facilitating integration with the monitoring system and capable of monitoring up to 500 meters of the sensing cable.











Core Technological Advantages
Our GLD3100 liquid leak controller is designed for harsh industrial monitoring environments, boasting the following performance characteristics:
Long-Distance Monitoring: A single device supports sensing cables up to 500 meters long, enabling wider access and ensuring comprehensive coverage without blind spots.
Instantaneous warning response: Employs a unique ultra-fast detection algorithm to ensure that an alarm is triggered immediately within 3 seconds of a leak occurring.
Standard communication architecture: The device has a built-in RS485 (Modbus-RTU) protocol, which can be easily connected to various PLCs, DCSs or third-party monitoring systems.
Wide voltage range design: The equipment supports a wide voltage input of 12-24VDC, which enables it to effectively cope with voltage fluctuations in industrial environments and ensure stable 24/7 operation of the system.
Convenient DIN Rail Installation: Utilizing a standard 35mm DIN rail design, it greatly simplifies layout within power or network cabinets.
Product Certification
The GLD3100 Liquid Leak Controller has obtained certifications such as CE, ROHS, FCC, and those from the metrology institute.
Typical Application Industries of the Product
It is applicable to liquid leakage detection in fields such as data centers, semiconductors, new energy, photovoltaic power, petroleum and petrochemicals, and power environment systems. It not only can detect water, but also can detect leaks of various acidic and alkaline liquids.
Can be used in conjunction with detection cables
The GLD3100 liquid leakage controller can be used in conjunction with GDL2 detection cables, GDL3 leakage detection strips, GDL2M water detection cables, GDL4S, GDL7S acid-base leakage detection cables, and GDL4Y fuel leakage detection cables, etc.

Technical Specifications
| Power Supply Voltage | 12-24VDC |
| Relay Output | 1 SPDT 220VAC/ 10A 30VDC/ 10A |
| Serial Interface | RS485 two-wire network, MODBUS-RTU Baud rate (default 9600), Address (default 1) |
| Response Time | Response time < 3 seconds |
| Operating Environment | -30 to 70°C, 0-80% RH (non-condensing) |
| Enclosure Dimensions | 70mm*85mm*58mm |
| Installation Method | 35mm rail mounting |
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