SLT-TRM is a class II (type 2) sound level, sound pressure level (SPL), decibel (dB) or noise meter with audible or visual alarm output capability. SLT-TRM is used for long-term, continuous monitoring of occupational noise exposure limits in industrial environments such as foundries, factories and manufacturing production floors. The measuring device consists of a wall-mountable acoustic sensor on a 1.5 m / 4.92' long cable and a transmitter. 

Sound Level Meter SLT-TRM

  • Measuring range 30 ... 130 dB in 3 ranges:
    I. 30 ... 80 dB(A)
    II. 50 ... 100 dB(A)
    III. 80 ... 130 dB(A)
    Resolution 0.1 dB
    Accuracy ±1.5 dB
    Frequency weighting A
    Power supply Via transmitter
    Cable length (sensor to transmitter) 1.5 m / 4.92'
    Operating conditions 0 ... +50 °C / +32 ... +122 °F, max. 85 % RH
    Microphone 1/2" precision electret
    Standard IEC 61 672 (Class II)

    Transmitter

    Housing

    ABS plastic

    Power supply 90 ... 260 AC V
    Calibration Adjustable by set screw
    Output 4 ... 20 mA
    Protection class IP 54 ingress protection rating
    Operating conditions 0 ... +50 °C / +32 ... +122 °F, max. 85 % RH

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