Si-Marine STR2 Tank level sender (NMEA2000)

The end of float arms, foam confusion & probe drift. Floats stick. Capacitive probes drift. Ultrasonic gets fooled by foam. The STR series is a micro-radar tank level sender — finally a precise, reliable and affordable solution for boats and vans. 01 Non-contact radar through the lid Mount it on the outside of the tank lid — the radar reads through the plastic. No probes, no float arms, no contact with fuel, water or waste. 02 Auto Tank Height Detection Records distance automatically — no empty/full ritual (needs a little liquid in the tank). 03 Bluetooth setup & updates Fine-tune and push firmware updates straight from your phone via the Simarine Connect app. 04 Any liquid, one part Fuel · fresh water · grey water · waste water. One sensor across every tank. 05 Plug & integrate No need to remove the old sender — just disconnect its wiring and connect the STR to your existing gauge. STR1 for analogue gauges; STR2 speaks NMEA 2000 natively (certification pending).