Features February 2008 Issue

Marine Holding-Tank Sensors: How do you Know When the Black Water Level is at Red Alert?

External Tank Gauges Take the Guesswork out of Liquid Levels.

Knowing how full your holding tank is can mean more than simple peace-of-mind. Whether setting out for a Sunday sail or taking off for a week-long cruise, no one wants to discover an empty water tank or full black water tank, after you¹ve already cast off the dock lines. Practical Sailor tested five external tank sensors with displays: Raritan Tank Monitor, Scad Solo Profile Tank Monitor, SensaTank Marine 100, Snake River Acu-Gage Smart Mini, and Snake River Acu-Gage Three-Tank. We compared the accuracy of all five gauges, along with ease of installation, display dimensions, tech support, and price.

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