Combining several advanced technologies, the IP67-rated coolant proof SuperSolar digital caliper offers ease of use, convenience, and shop hardness. Powered by a solar battery charging a super capacitor, the caliper is capable of operation under low light conditions—requiring only 60 Lux to charge—and has the ability to run on capacitor power when experiencing even lower light conditions. Solar power eliminates the cost of replacement batteries while doing away with the hassle of disposing spent batteries.