Raymarine - Wireless Micro Compass System w/Strap Bracket - T061. The Micro Compass proved a huge advantage over competitors using glass ball compasses. To win races you must react to even small wind shifts. Readable, precise, and reliable heading information from your compass is critical. Digital compasses deliver this data right into your natural field of view, where you need it, how you need it, and when you need it. The Micro Compass's tactical scale gives you clear stable figures corresponding to port and starboard tack. The readings whilst tacking are always the same, meaning you never have to remember numbers.. Data Displayed:. Heading. Tactical Scale. Race Timer. Features:. No wires or connections to make. Simple to set-up and use. Totally waterproof (submersible from 10m). Lightweight only.34 lbs.. Ultra wide viewing angles. Battery level indicator. Easy-to-read large digits