SDI-12 hydrostatic liquid level sensors for remote environmental monitoring. Low power, digital output, ideal for battery-powered data loggers in hydrology & water resource management.
SDI-12 hydrostatic liquid level sensors are specifically engineered for remote, low-power environmental monitoring applications. These sensors utilize the SDI-12 communication protocol, a serial digital interface ideally suited for battery-powered data loggers and telemetry systems. Unlike traditional analog sensors, SDI-12 devices provide a robust, noise-immune digital output and support two-way communication for remote configuration and diagnostics. Ideal for deployments in hydrology, water resource management, and flood warning systems, these sensors offer precise liquid level measurements, durable construction, and simplified integration with multi-sensor networks, to provide reliable and temperature compensated measurements.
Evaporation pan SDI-12 environmental data interface water level sensor - Monitor water levels in Class A evaporation pans with this 0.5m SDI-12 submersible sensor. Durable, accurate, and easy to integrate.- Low power consumption SDI-12 lake water level sensor - Monitor lake water levels accurately with this low power SDI-12 sensor. Features durable PUR cable and PC logging software for easy data analysis.
- S12C SDI-12 Seawater Pressure & Temperature Transducer
- S12S SDI-12 Coms IP68 Pressure and Temperature Sensor
- Roadside creeks & streams flood warning SDI-12 coms water level sensor - Low power SDI-12 water level sensor for flood monitoring in roadside creeks and streams. Ideal for remote telemetry systems.
- Irrigation water channel and storage dam SDI-12 submersible level sensor with 10m range - Submersible level sensor with SDI-12 interface for irrigation water channels and storage dams. 0 to 10m range, stainless steel 316L housing, Viton seals, and PUR cable. Ideal for agricultural water monitoring and telemetry systems.
- Submersible water level and temperature probe with SDI-12/USB interface for freshwater monitoring - Versatile 10m water level and temperature probe with USB and SDI-12 connectivity, designed for hydrological studies and long-term environmental monitoring programs.
- Low powered digital out IP68 100mb level & temperature sensor
- 70m/230ft depth SDI-12 submersible freshwater level probe
- 2ft range SDI-12 interface submersible shallow depth streamflow level sensor
- 10 metre submersible water depth and temperature transducer with USB digital connection
- 50m seawater depth and temperature sensor with SDI-12
- Stilling well 3ft range SDI-12 interface lake water level sensor
- SDI-12 interface, 2 bar absolute, submersible water level sensor
- SDI-12 near shore tide gauge submersible 20m level probe
- SDI-12 freshwater submersible pressure sensor for measurement up to 5 metres
- 2m range SDI-12 interface submersible lake level sensor for environmental monitoring
Find out more about SDI-12 Hydrostatic Liquid Level Sensors to determine which product options and capabilities will best meet your application requirements.
SDI-12 hydrostatic liquid level sensors represent a specialized class of submersible pressure transducers specifically designed for integration with low-power data logging and telemetry systems in remote environmental monitoring applications. The defining feature of these sensors is their adherence to the SDI-12 (Serial Digital Interface at 1200 baud) communication protocol, a standard particularly well-suited for battery-powered instrumentation requiring minimal energy consumption.
Unlike analog output level sensors, SDI-12 devices transmit data digitally, providing a robust and noise-immune signal, crucial for maintaining data integrity over long cable runs often encountered in field deployments. This digital communication also allows for multiple sensors to be connected on a single bus, simplifying wiring and reducing overall system complexity. The sensor reports a calibrated liquid level directly, requiring no additional signal conditioning or interpretation by the receiving device.
The SDI-12 protocol facilitates two-way communication, enabling remote configuration and diagnostics of the sensor. This includes the ability to adjust measurement parameters, initiate self-tests, and retrieve sensor-specific identification and calibration data. This is a significant advantage in remote deployments, such as hydrological monitoring stations, groundwater observation wells, or surface water level gauging in rivers and canals.
These hydrostatic level sensors are typically constructed with robust materials like stainless steel or marine-grade polymers to withstand prolonged submersion and exposure to various environmental conditions. The pressure sensing element, typically a piezoresistive diaphragm, is isolated from the measured liquid by a protective barrier, ensuring long-term reliability and accuracy. Some models include additional protections such as built-in surge suppression, to provide extra protection from electrical interference, such as nearby lightning strikes.
Applications where low power consumption and digital data transmission are crucial include irrigation water resource management, where sensors are deployed in canals and reservoirs to monitor water levels and optimize distribution. Similarly, they are deployed in boreholes for groundwater level monitoring, providing critical data for aquifer management and research. Flood warning systems also benefit from the robust and reliable communication provided by the SDI-12 interface, ensuring timely alerts in critical situations. Other uses include monitoring liquid levels in wastewater treatment facilities and leachate levels in landfill sites.