Monitor water levels in retention ponds with this submersible level sensor. Accurate, reliable, and built for harsh environments.
The LMP307 submersible level sensor is a robust and reliable solution for monitoring water levels in retention ponds up to 20 feet deep. Constructed from 316L stainless steel, this sensor is built to withstand the harsh conditions often found in these environments. The sensor operates by measuring the hydrostatic pressure of the water column above it, providing accurate and continuous level measurements. This data can be crucial for managing stormwater runoff, preventing flooding, and maintaining the ecological balance of the surrounding area.
One of the key features of the LMP307 is its impressive waterproof rating. With a cable gland rated to 250 meters depth, it offers exceptional protection against water ingress, ensuring long-term reliability even in submerged conditions. This makes it ideal for permanent installations in retention ponds, where maintenance access may be limited. The sensor’s 4-20mA output signal is compatible with a wide range of monitoring and control systems, allowing for easy integration into existing infrastructure.
Retention ponds play a vital role in mitigating the impact of urbanization on water quality. By capturing rainwater runoff from developed areas, they help to reduce the influx of pollutants into natural water bodies. The LMP307 can assist in optimizing the operation of these ponds by providing real-time water level data. This information can be used to control outflow rates, prevent overflows, and ensure that the pond is functioning effectively.
In addition to retention ponds, the LMP307 can also be used in other applications where continuous water level monitoring is required. These include:
- Landfill leachate monitoring: Measuring the level of leachate in landfill cells to ensure compliance with environmental regulations.
- Flood warning systems: Providing early warning of rising water levels in rivers, streams, and other water bodies.
- Irrigation control: Monitoring water levels in storage tanks and reservoirs to optimize irrigation scheduling.
The LMP307‘s versatility, durability, and accuracy make it a valuable tool for a wide range of water management applications. Its ability to provide reliable, long-term performance in challenging environments ensures that you can effectively monitor and manage your water resources.

LMP307 Submersible Water Level Sensor
- Sensor Type: Level only
- Level Sensing Range: 20
- Units: ftH2O
- Reference Type: Gauge / Vented (atm to +P)
- Output Signal: 4-20mA, 2 wire
- Accuracy: 0.35%FS above, 0.5% FS below 4mH2O (11-12bit res)
- Installation Type: Submersible probe with removable nose cone
- Housing Material: Stainless Steel 316L
- Diaphragm Material: Stainless Steel 316L
- Media Exposed Seals: FKM
- Cable Type: PVC (70degC max)
- Cable Length: 30
- Cable Length Units: Feet (ft)