A protective cap which can be fitted to the YBO-R/SCI(WHT) isolator base, the YBO-BS(WHT) base sounder or the YBO-BSB(WHT) base sounder beacon – when either of these devices isn’t fitted with a sensor. · · · Protects wiring terminals on isolator bases and base sounders/beacons · · Easy twist-fit · · Keeps your equipment safe and secure · · Prevents damage from dust, dirt and debris. · · The White Base Sounder / Isolator Cover is made of a durable plastic construction that is weatherproof and UV resistant. · · The White Base Sounder / Isolator Cover protects sounders and isolators from the elements, including rain, snow, dust, and dirt