The ISA200 utilises sonar technology to derive distance measurement.

Operating at 200kHz, the sensor utilises a monolithic transducer and electronics together with an advanced digital acoustic engine. The combination of these enable the sensor to achieve long range and high accuracy.

The ISA200 provides a single range measurement per ping (for use as an underwater Altimeter). With ECHOGRAM enabled the ISA200 can provide sonar backscatter data (for use as an Echosounder).