Extech Sound Level Meter | Alert with ...

Extech - Sound Level Meter | Alert with Alarm | SL130W

Supplier: Rapid-Tech

Sound Level Meter | Alert with Alarm | SL130W

The Extech SL130W is a 30 to 130dB Sound Level Meter with built-in under/over-range LEDs indicators and sound level alert with alarm for continuous monitoring of sound levels. Ideal for industrial, hospital, auditoriums, nightclubs, schools, etc.

In Stock

Features of this product

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

Applications of this product

Industrial, Hospitals, Classrooms, and special quiet zones – When the sound level exceeds the HI set point the RED LEDs flash and can be seen from 30m 100ft.
Speakers/Educators/Instructors, Auditoriums and Theaters – The user can set the SL130 so the RED LEDs 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 LEDs indicate the sound level is acceptable. The user can reverse the Red and Green LEDs activation per user color preference.

Specifications of this product

Display 117 x 79mm multifunction LCD
Frequency bandwidth 31.5 Hz to 8 kHz
Microphone 0.5″ Electret Condenser Microphone (detachable)
Measurement ranges 30 to 80dB, 60 to 110dB, 80 to 130dB
Frequency weighting ‘A’ and ‘C’
Response time Fast: 125ms / Slow: 1s
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
Dimensions/Weight 22 x 18 x 3.2cm / 285g

To contact Rapid-Tech about Extech Sound Level Meter | Alert with Alarm | SL130W use Get a quote.

Features of this product

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

Applications of this product

Industrial, Hospitals, Classrooms, and special quiet zones – When the sound level exceeds the HI set point the RED LEDs flash and can be seen from 30m 100ft.
Speakers/Educators/Instructors, Auditoriums and Theaters – The user can set the SL130 so the RED LEDs 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 LEDs indicate the sound level is acceptable. The user can reverse the Red and Green LEDs activation per user color preference.

Specifications of this product

Display 117 x 79mm multifunction LCD
Frequency bandwidth 31.5 Hz to 8 kHz
Microphone 0.5″ Electret Condenser Microphone (detachable)
Measurement ranges 30 to 80dB, 60 to 110dB, 80 to 130dB
Frequency weighting ‘A’ and ‘C’
Response time Fast: 125ms / Slow: 1s
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
Dimensions/Weight 22 x 18 x 3.2cm / 285g

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To contact Rapid-Tech about Extech Sound Level Meter | Alert with Alarm | SL130W use Get a quote.

Extech-SL130W-Datasheet(0.28MB)

AI Overview BETA

The Extech SL130W is a sound level meter for continuous noise monitoring, with selectable ranges from 30 to 130 dB. Its red and green LEDs signal when sound crosses a set limit, with flashes visible from 30 m away. Industrial sites, hospitals, classrooms and auditoriums can mount it on a wall, desk or tripod to suit the monitoring position.

Meets ANSI Type 2 and EN 60651 accuracy specs; compliant with OSHA
Optional 15 ft (5 m) microphone extension cable for remote monitoring
Frequency weighting: A and C
117 x 79 mm multifunction LCD
AC/DC adaptor enables full functions; 8 x AA batteries support monitoring without LED alerts

Source: listing by Rapid-Tech on IndustrySearch · Updated 3 Nov 2026
Specification sheet: Extech-SL130W-Datasheet (PDF)

AI Overview is generated by artificial intelligence and may contain mistakes.

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