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outdoor-ready fixed mini dome with a flat-faced design that suppresses reflections
NOTE: This unit only measures over the range 50-90dBuV
- Warranty: Textiles & Mesh – 5 years of single shift use
Surf the internet and check emails on the longer-range 2
transistors & resistors
Short Circuits Two Project - Countdown Timer Surge Protection outdoor-ready fixed mini dome withThis neat project enables you to dial a time you want to elapse before you want something to happen, say the exposure of a camera shutter or an electrically operated door to stay open. At the end of the timed period (seconds to many minutes) a relay is energized which can switch something on or off. PCB and all parts supplied, including relay. Requires 9V battery. Instructions sold separately or withing the Short Circuits book range, Short Circuits
US$ 649.50
US$ 1347.50
US$ 199.50