INW’s patented AquiStar® PT12/SDI-12 submersible pressure sensor represents the latest in state-of-the-art level measurement technology.

Building on years of successful experience, this industry standard SDI-12 v1.3 interface device offers great noise immunity, thermal performance and transient protection. In addition, this device returns temperature and time data and operates with low power.

The sensor’s end cone is interchangeable with a 1/4″ NPT inlet which allows for increased application use and easy hookup. The modular designed AquiStar® PT12/SDI-12 sensor can be factory serviced and repaired saving on future upgrade and repair costs.

INW’s PT12/SDI-12 submersible level sensor features an SDI-12 interface that makes the product easy to interface to SDI-12 recorders, can be daisy chained on one cable up to 200 feet (30 meters), and operates on low power. This makes it a preferred choice for many environmental professionals with existing SDI-12 systems. For further flexibility, this sensor features a Modbus® RTU communication interface. The U.S.G.S. OSW accuracy enhanced calibration is an option on the 15 psig (10.5 H2O) unit.

Due to its rugged construction, the AquiStar® PT12 / SDI-12 Sensor can be used to replace analog sensors. Units can be used to monitor groundwater, well, tank and tidal levels, as well as for pump testing and flow monitoring.

•SDI-12 v1.3 interface and Modbus® RTU interface
•Small diameter
•Optional body lengths
•Twist open case
•Pressure and temperature
•316 stainless steel, Viton® and Teflon® construction (Titanium optional)
•Polyethylene, polyurethane and FEP Teflon® cable options

The PT12 / SDI-12 sensor can be connected to the OMC-045-III data logger.