Extech Sound Level Alert with Alarm (SL130G)

In stock

This sound level alert with alarm lets you monitor the noise level and will alert you when the level exceeds the low or high set limits. It has bright red and green LEDs to alert you.

Extech Sound Level Alert with Alarm (SL130G)


  • Bright LEDs (red flashing or green) alert user when sound level is too high or too low - LEDs can be read from 30m (100ft)
  • Continuous monitoring of sound level
  • Ideal for hospital, auditoriums, schools and other areas where there is a need for being alerted when sound level reaches set point
  • Meets ANSI Type 2 and EN IEC 60651 standards - compliant to OSHA
  • Wall, desk or tripod mount (Tripod sold separately)
  • Settable high/low limit indication with output to drive external relay module
  • Microphone rotates 180 degrees for desired placement. Optional 15ft (5m) microphone extension cable for remote monitoring
  • Complete with AC adaptor and microphone wind cover

This sound level alert features continuous monitoring of sound level with built in alerts when the sound level is too low or high. This is a great way to keep an eye on the sound level especially in places like libraries, auditoriums, schools, hospitals, quiet zones and more. With a large LCD screen for quick and easy viewing and bright LEDs which flash to tell you when the sound level has exceeded the high/low settings.


  • Display: 4.6 x 3.125" multifunction LCD
  • Frequency bandwidth: 31.5 Hz to 8 kHz
  • Microphone: 0.5" Electret Condenser Microphone
  • Measurement ranges: 30 to 80dB, 60 to 110dB, 80 to 130dB
  • Frequency weighting: ‘A’ and ‘C’ (Programmable)
  • Response time: Fast (125ms) / Slow (1s) (Programmable)
  • Resolution: 0.1dB
  • Alarm output: 3.5mm Mono Phone Plug, Maximum: 3.4mA @ 5 VDC
  • Minimum Output Voltage: 2.5 VDC
  • Power: AC/DC Adaptor for full functions; 8xAA batteries for monitoring function only without LED alert
  • CE/Warranty: CE approved/ 1 year warranty
  • Dimensions/Weight: 8.75 x 7.1 x 1.25" / 0.63 lbs. (22 x 18 x 3.2mm / 285g)

Unit Ship Weight: 2 lbs

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