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Extech SL130G
Sound Level Alert with Alarm

Built-in LED's alert user when sound level is too high or too low

  • Bright LED's (red flashing or green) alert user when sound level is too high or too low - LED's can be read from 30m (100ft)
  • Continuous Monitoring of Sound Level
  • Ideal for industrial, 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 60651 accuracy specs - compliant to OSHA
  • User settable high or low limit (30 to 130dB) indication with output to drive external relay module
  • Wall, desk or tripod mount
  • Microphone rotates 180° for desired placement.  Optional 15ft (5m) microphone extension cable for remote monitoring
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Extech SL130G shown

Product Information
Datasheet 207 KB
Manual 184 KB
PDF Help
  • Industrial, Hospitals, Classrooms, and special quiet zones - When the sound level exceeds the HI set point the RED LED's flash and can be seen from 100 ft (30m)
  • Speakers/Educators/Instructors, Auditoriums and Theaters - The user can set the Extech SL130 so the RED LED's flash when the sound level is below the LO set point where people in the audience may not be able to hear.  When the sound level is above the LO set point, the GREEN LED's indicate the sound level is acceptable.  The user can reverse the Red and Green LED's activation per user color preference.
the Extech SL130G Sound Level Alert is designed for wall mount, desk, tripod mount operation, this meter meets IEC Type 2 Sound Level Meter standards. Included is a High/Low Limit Set Point with 4 two color high intensity LED limit exceed indicators and a large OVER indication when the set level is exceeded. An Alarm Output can be used on the SL130-G to drive a larger or a remote indicating device such as a “QUIET” sign. Professional features include programmable A/C Weighting and Fast/Slow Response time, Max Memory with time stamp, and a Clock display. The microphone can be rotated 180 degrees to accommodate any meter location. The bright LED’s are functional only when the AC power adaptor is used.
Ordering Information
Model Description Buy Online Price
SL130GExtech SL130G Sound Level Alert with Alarm Buy Now$269.99
Included Accessories
  • 1 - Microphone Wind Cover
  • 1 - AC Adaptor
  • 1 - Built in Wall, desk and Tripod mount (TR100 Not Included)
  • 1 - Users Manual
Optional Accessories
SL123 Extech SL123 AC Alarm Relay Module 9 foot cable (3m)Discontinued
SL124 Extech SL124 DC Alarm Relay Module 9 foot cable (3m) Discontinued
SL125 Extech SL125 Microphone Extension Cable For Extech SL130G Sound Level Monitor Buy NowSale $29.99
(Reg. $39.99)
TR100 Extech TR100 Tabletop Tripod 6 Inch Buy NowSale $23.69
(Reg. $29.99)
407766 Extech 407766 94/114dB Sound Level Calibrator Buy Now$419.99

*NOTE: Items ordered with optional NIST calibration will require
approximately 10 days to complete the certification.