Marine Electronics
Vexilar LPS-1 Handheld Sonar Depthfinder 24Deg 2-200'
LPS-1 Hand-Held Depth Finder in nautical yellow--ideal for fishing, ice fishing, and scuba diving 200 kHz 22 degree built-in transducer; reads depths from 1.8 to 200 feet Backlit display for night use Weighs just 11 ounces and floats; waterproof to...
https://www.bizrate.co.uk/marineelectronics/vexilar-lps-1-handheld-sonar-depthfinder-oid6631154107.html