The Galaxy Audio CM-140 CHECK MATE is a lightweight, 9V battery-operated SPL meter with a built-in electret condenser microphone and a large, backlit display featuring low, medium and high level range readouts. This high-tech but inexpensive meter offers selectable fast and slow response times, AC signal output, and large, easily accessible selector buttons.
- Lightweight, miniature SPL meter with 0.1 dB resolution
- Built-in electret condenser microphone with windscreen
- Large backlit level range display with low, medium and high level readouts
- Standard 9V battery operation with 50 hr. battery life
- AC signal output