Specifications
SKU: CUSTOM Digital Sound Level Meter SL-1330
Product overview
Sound pressure levels can be measured from 30dB to 130dB using auto-range and manual range operation.
- Frequency response: A-weighting / C-weighting, Dynamic response: FAST/SLOW switchable
- Equipped with hold function and analog display
- Equipped with an auto power off function to reduce battery consumption
Supports A/C characteristics and FAST/SLOW switching.

It supports both "A-weighting," which is close to human hearing and is used for general noise measurement, and "C-weighting," which is suitable for measuring sound pressure levels with a high level of low frequency components such as impact sounds. It is also possible to switch between "FAST" weighting (time constant: 125 ms), which provides measurements close to the response time of the human ear, and "SLOW" weighting (time constant: 1 s), which provides measurements of the average level of fluctuating noise.
Supports two types of display: "analog display" and "digital display."
It supports two types of display: an "analog display" (bar graph) that allows you to instantly recognize the amount of change, and a "digital display" that allows you to instantly check the measurement value.Part names
Main unit
- ① Windscreen (microphone)
- ② Display section
- ③ Frequency weighting characteristics (A characteristic/C characteristic) selection button
- ④ Maximum/minimum value hold button
- ⑤ Range (auto/manual) selection button
- ⑥ Dynamic characteristics (FAST / SLOW) selection button
- ⑦ Power button
- ⑧ Battery cover
- ⑨ Tripod mounting part
Screen display section
- ① Lower limit of measured value
- ② MAX (maximum value) hold function enabled display
- ③ MIN (minimum value) hold function enabled indicator
- ④ Time weighting characteristics: High speed display
- ⑤ Time weighting characteristics: slow display
- ⑥ Upper limit display of measured value
- ⑦ Measurement range
- ⑧ Analog Range
- ⑨ Measurement value (digital)
- ⑩ Battery level warning display
- ⑪ Auto range function enabled indicator
- ⑫ Function enabled when measurement value is held
- ⑬ Frequency weighting: C characteristic valid display
- ⑭ Frequency weighting characteristics: A effective display
- ⑮ Auto power off function enabled indicator
360° rotating image
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specification
Electrical Performance
| Frequency response | A characteristic/C characteristic |
|---|---|
| Frequency Range | 31.5 Hz to 8 kHz |
| Measurement range |
|
| resolution | 0.1 dB |
| sampling | Approximately 2 times/second |
| Accuracy | ±1.4 dB (94 dB, at 1 kHz) |
| Dynamic characteristics |
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General specifications
| Auto Power Off | Approximately 15 minutes (can be canceled) |
|---|---|
| Operating temperature and humidity | 0 to +50°C, 80% RH or less (no condensation) |
| Storage temperature and humidity | -10 to +60°C, 10 to 75% RH (no condensation, batteries not included) |
| size | Approx. W 62 × H 188 × D 32 mm (excluding windshield and buttons) |
| weight | Approximately 156 g (excluding batteries) |
| power supply | 9V battery x 1 |
| battery life | Approximately 30 hours (when using alkaline batteries) |
| accessories | Windscreen, instruction manual, storage case, adjustment screwdriver, 9V battery x 1 |
| Compliance standards | IEC61672-1 Class 2 |
| proofreading | Possible |
| JAN | 4983621180053 |
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