Get accurate depth from your boat or dinghy with one flick of the switch. Distance can be measured by pointing the sensor towards the object and sliding the switch. This unique pocket size depth sounder is very accurate and of high quality impact resistance. It is useful for boating, fishing, scuba diving, coastal survey and scientific works. SINGAPORE

built-in battery up to 10 hrs, no more car bulky and heavy batteries!
Bluetooth communications, avoid trouble in cables, rust, lost connections etc.
easy to remove
easy to operate
compatible to all existing RTK owners
very good price with a very good European Quality