The Seametrics T1 temperature sensor is a submersible sensor that can communicate with either Modbus RTU or SDI-12. It operates on an external power supply (9 to 15 VDC), making it ideal for use with many data loggers and SCADA systems. The T1 is additionally interfaceable with SDI-12 recorders as it can be daisy chained on one cable up to 2000 feet.

The T1 is constructed with 316 stainless steel, fluoropolymer, and PTFE, making it resistant to weather and data interferences and safe for long-term deployment. Applications suggested for this device include rugged construction and monitoring the temperature of ground, well, tank, and tidal water.