Extech Instruments Sound Level Test Instrument, 30 ... 130dB 30...130 dB LCD

User settable high or low limit (30 to 130dB) indication with output to drive external relay module. Microphone rotates 180° for desired placement. Meets ANSI Type 2 and EN 60651 accuracy specs. Optional 5m (15ft) microphone extension cable for remote monitoring. For Industrial, Hospitals, Classrooms, and special quiet zones.