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    Digital Sound Level Meter, 45 to 160 dB

    Level 1 sound level meter measurement range from 45 dB to 160 dB, RS-232 digital output interface, data logging, decibel meter using advanced digital detector technology, with high reliability, good stability, wide dynamic range, and simple operation, is the ideal solution for measuring environmental noise.
    SKU: SISCO-SLM-5661-1C
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    🚚 Free shipping
    🔙 30-day returns
    📅 Delivery: 7-12 days

    The digital sound level meter can detect noise from 45 dB(A) to 160 dB(A), frequency range 10 Hz to 20 kHz, sound level meter has a wide range of applications in transportation, environmental protection, medical and construction fields.

    Sound meter panel display

    Digital Signal Processing Technology

    • The sound decibel meter meets Class 1 standards.
    • Advanced digital detection technology, good stability and wide dynamic range.
    Sound meter details

    Overload indication function

    • Overload indication, over the measurement range automatically prompt, digital sound level meter is not damaged.
    • Single range, wide dynamic range, no need to switch, simple and convenient operation.


    The digital sound level meter can be widely used in various machines, vehicles, ships, electrical appliances and other industrial noise measurement and environmental noise measurement, suitable for factory enterprises, architectural design, environmental protection, labor and health, transportation, teaching, medical and health, scientific research and other departments of the sound test field.

    Sound level meter applications

    Model SISCO-AWA-5661-1C
    Microphone Model AWA14435
    Measuring Range 45 dB(A)~160 dB(A)
    Spontaneous Noise <38 dB(A)
    Frequency Range 10 Hz~20 kHz
    Frequency Weighting Parallel (simultaneous) A, C, Z for each channel
    Time Weighting Parallel (simultaneous) F, S, I, Peak for each channel
    Monitor 128×64 LED dot matrix
    Output Interface AC, DC, RS232, PWM
    Points Function No
    Main Measurement Index Lp, Lmax, Lpeak
    Overrun Indication The limit can be set
    Data Storage Function No
    Recording Function No
    Statistical Analysis Function No
    Power Supply 4 (7#) alkaline batteries, can work continuously for more than 6 hours; lithium battery (optional): After fully charged, it can work continuously for more than 16 hours
    5 V external power supply: DC5 V~DC6.5 V, working current <120 mA
    Dimension 190mm x 68mm x 27mm
    Weight 1.5 kg
    Operating Temperature -10 ℃~50 ℃
    Warranty 12 Months
    Dimension 220mm x 68mm x 27mm

    Q1: What is a noise detector?
    A1:  Noise tester is an instrument used for noise detection and testing in public places such as work sites and squares. Factory noise monitoring Noise pollution is one of the environmental pollutions that have a greater impact. Higher decibel noise can even cause serious damage to people's eardrums and cause deafness. The application of the noise tester can provide the decibel that the noise reaches in order to take relevant measures to control and reduce the noise. The measurement unit of the sound level is decibels. The professional noise tester has a highly sensitive sensor, high accuracy, and a wide range of applications. It can be widely used for noise measurement in various environments. Sound level measuring instrument, collectively referred to as sound level meter.

    Q2: Sound level meter working principle
    A2: The sound level meter uses a microphone to convert the sound into an electrical signal, and then a preamplifier converts the impedance to match the microphone with the attenuator. The amplifier adds the output signal to the weighting network, performs frequency weighting on the signal (or an external filter), and then amplifies the signal to a certain amplitude through the attenuator and amplifier, and sends it to the effective value detector (or external press Level recorder), give the value of the noise level on the indicator head.

    Q3: How big is the decibel scale?
    A3: Sound is measured in decibels (dB). Whispering is about 30 decibels, normal conversation is about 60 decibels, and motorcycle engines run at about 95 decibels. Noise above 70 decibels for long periods of time may begin to damage your hearing. Loud noises above 120 dB can cause immediate damage to your ears.

    Tips: What is the difference between the slow and fast settings of the sound level meter?

    Slow: The time constant is 1 second (1000ms). This is the slowest and is commonly used in environmental noise measurements.

    Fast: The time constant is 1/8 second (125 ms). This is a less commonly used weighting, but will detect changes in sound level more quickly.


    Thank you for buying industrial test and measurement equipment on, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.

    What is covered?

    SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.

    What is not covered?

    • Product purchased from anyone other than a SISCO store or a SISCO authorized reseller.
    • Expendable parts.
    • Routine cleaning or normal cosmetic and mechanical wear.
    • Damage from misuse, abuse or neglect.
    • Damage from use of parts other than SISCO approved.
    • Damage from use outside the product’s usage or storage parameters.
    • Damage from use of parts not sold by SISCO.
    • Damage from modification or incorporation into other products.
    • Damage from repair or replacement of warranted parts by a service provider other than a SISCO authorized service provider.
    • Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.
    5.0 4
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    Orion | 11/26/2023 5:46 PM
    Professional and practical
    This digital volume meter plays an integral role in my work. The measurement range from 45 to 160 dB allows me to adapt to the needs of different environments and I am impressed with the accuracy. The simple and intuitive interface makes operation very easy and the durability of the unit has exceeded my expectations.
    Soloman | 11/23/2023 7:41 PM
    Clear digital display
    The digital display offers clear and precise readings, eliminating the need for manual interpretation of analog scales. This feature enhances user convenience and reduces the likelihood of reading errors.
    Ambrose | 10/30/2023 7:44 PM
    Wide Measuring Range
    One of the standout features of this sound level meter is its wide measurement range, covering 45 to 160 dB. This broad range makes it suitable for a variety of applications, from monitoring noise levels in a quiet room to assessing noise pollution in a busy urban environment. Its adaptability to different sound levels is a significant advantage.
    Abel | 8/30/2023 7:08 PM
    Exceptional Performance and Versatility
    I am thrilled to share my positive experience with the Digital Sound Level Meter, 45 to 160 dB. The meter's accuracy and precision have greatly aided me in my noise measurement tasks, both personally and professionally.