EXTECH Sound alert SL130

30-130dB Meter with built-in under/over-range LEDs indicators Wall, desk or tripod mount with optional 15ft (5m) microphone extension cable for remote monitoring Bright LEDs (red flashing or green) can be read from 100ft (30m) Continuous monitoring of sound level in 3 ranges: 30 to 80dB, 60 to 110dB, 80 to 130dB User adjustable high or low limit (30 to 130dB) with output to drive external relay module Built-in desk, wall and tripod mounts Meets ANSI Type 2 and EN 60651 accuracy specs – compliant to OSHA Complete with 100-240V AC 50/60Hz adaptor and microphone wind cover