Rion · Compact sound level meters · Handheld sound level meter
Rion NL-38
CurrentPocket-sized Class 1 sound level meter with a detachable microphone and preamplifier, OLED display and USB-C data export to CSV. Measures A, C and Z weighted levels including Leq, LE, Lmax, Lpeak and Ltm5 from two AA cells. Intended for spot checks of vehicle, factory, traffic and construction noise where a simple Class 1 instrument is needed.
Specifications verified on .
- Type
- Handheld sound level meter
- Class
- Class 1
- Channels
- 1
- Octave bands
- None
- Connectivity
- USB-C
- Weight
- 190 g
- Battery life
- 9 h
Specifications
As published by Rion. Fields the manufacturer does not publish are omitted rather than estimated.
| Specification | Value |
|---|---|
| IEC 61672-1 class | Class 1 |
| Standards | IEC 61672-1:2013 class 1 |
| Specification | Value |
|---|---|
| Channels | 1 |
| Measurement range | A 32 to 137 dB; C 40 to 137 dB; Z 45 to 137 dB |
| Peak range | 68 to 140 dB (C-weighted peak) |
| Frequency range | 10 Hz to 20 kHz |
| Frequency weightings | A, C, Z |
| Time weightings | F, S, I |
| Parameters | Lp, Leq, LIeq, LE, Lmax, Lpeak, Ltm5 |
| Specification | Value |
|---|---|
| Octave bands | None |
| Reverberation time | No |
| Building acoustics | No |
| Audio recording | No |
| Specification | Value |
|---|---|
| Memory | Internal, 200 data sets; 999 calibration records |
| Specification | Value |
|---|---|
| Microphone | Detachable microphone and preamplifier (model not named on datasheet); EC-38 extension cable optional |
| Detachable preamplifier | Yes |
| Display | 1.5" monochrome OLED, 128 x 128 |
| Battery | 2 x AA (alkaline or Ni-MH) |
| Battery life | 9 h |
| Weight | 190 g |
| Dimensions (mm) | 213 x 52 x 30 |
| Operating temperature (°C) | -10 to 50 |
| Specification | Value |
|---|---|
| Connectivity | USB-C |
Where this data comes from
| Kind | Document | Accessed |
|---|---|---|
| Product page | Class 1 Sound Level Meter NL-38 | |
| Datasheet | NL-38 Datasheet (print code 2607-0) |
Verified on . Only the manufacturer’s own published material is used; distributor pages are not sources.
Spec out of date? Tell us (reference rion-nl-38).
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Read next
- How to choose a sound level meter · Class 1 vs class 2, integrating vs non-integrating, parameters by application, options and licences, calibration.
- Class 1 vs class 2 sound level meters · IEC 61672-1 tolerances, what the classes do and do not say, and where each is typically required.
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