Towing Mirror Suction Fitting Plumbing this single unit lets you

this single unit lets you measure both the DC voltage and DC current (amp) of a single battery bank in real time

At the top of the tank near the filler cap is a 1/4" BSP brass insert and included with the tank is a vent and short hose kit

an extremely common socket type to suit a range of accessories

New User-friendly digital controls with built in battery monitor

Towing Mirror Suction Fitting Plumbing this single unit lets youQuick and easy to fit and suitable for most vehicles. Sold as an individual unit (1) FEATURES: Universal fittings, Flat Glass Adjusts with vehicle's power mirror Will NOT fit Pajero with larger sun shade on mirror