Description
Professional Noise Measurement for Industrial, Commercial & Environmental Applications
Measure sound levels accurately with the Professional Digital Sound Level Meter Series. Available in two models, these precision instruments are designed for environmental monitoring, workplace safety, machinery diagnostics, construction, manufacturing, entertainment venues, and many other professional applications.
Both models measure sound levels from 30 dB to 130 dB with excellent accuracy and feature a bright backlit display, selectable Fast/Slow response times, A/C frequency weighting, maximum value hold, analog bar graph, and tripod mounting capability.
Choose the SLM-24 for reliable everyday sound measurements, or upgrade to the SLM-25 for advanced data logging, internal memory, and PC connectivity.
Choose Your Model
SLM-24 – Professional Sound Level Meter
Perfect for technicians, inspectors, contractors, educators, and maintenance professionals who need fast and accurate sound measurements.
Features
✔ Measures 30–130 dB
✔ High accuracy (±1.5 dB)
✔ White backlit LCD
✔ Fast & Slow response
✔ A/C frequency weighting
✔ MAX Hold
✔ Analog bar graph
✔ AC/DC output
✔ Time & Date display
✔ Auto-ranging
✔ Automatic shut-off
✔ Low battery warning
✔ Tripod mount
✔ USB power capability
SLM-25 – Professional Data Logging Sound Level Meter
Includes every feature of the SLM-24 plus advanced recording and computer connectivity.
Additional Features
✔ Stores up to 32,000 readings
✔ Built-in Data Logging
✔ PC Interface
✔ Live computer monitoring
✔ Adjustable logging interval
✔ Adjustable alarm thresholds
✔ Windows software included
✔ Export and analyze measurements
Ideal for environmental studies, OSHA monitoring, long-term workplace testing, research, consultants, and engineers.
Common Features
✔ Measurement range: 30–130 dB
✔ IEC651 Type 2 compliant
✔ ANSI S1.4 Type 2 compliant
✔ High-contrast backlit display
✔ A/C frequency weighting
✔ Fast/Slow response selection
✔ MAX Hold
✔ Analog bar graph
✔ AC/DC output
✔ Tripod mount
✔ USB power option
✔ Low battery indicator
✔ CE & RoHS Certified
Specifications
| Feature | SLM-24 | SLM-25 |
|---|---|---|
| Measurement Range | 30–130 dBA | 30–130 dBA |
| Accuracy | ±1.5 dB | ±1.5 dB |
| Resolution | 0.1 dB | 0.1 dB |
| Frequency Response | 31.5 Hz–8.5 kHz | 31.5 Hz–8.5 kHz |
| Frequency Weighting | A/C | A/C |
| Fast/Slow Response | ✔ | ✔ |
| Analog Bar Graph | ✔ | ✔ |
| MAX Hold | ✔ | ✔ |
| Time Display | ✔ | ✔ |
| Data Logging | — | ✔ |
| Internal Memory | — | 32,000 Readings |
| PC Interface | — | ✔ |
| Live Computer Display | — | ✔ |
| Adjustable Recording Interval | — | ✔ |
| Power Supply | 4 × AA or USB | 4 × AA or USB |
Package Includes
SLM-24
- 1 × SLM-24 Sound Level Meter
- 1 × USB Power Cable
- 1 × AC/DC Line
- 4 × AA Batteries
- 1 × Carrying Pouch
- 1 × English User Manual
SLM-25
- 1 × SLM-25 Sound Level Meter
- 1 × USB Cable
- 1 × AC/DC Line
- 1 × Software CD (English)
- 4 × AA Batteries
- 1 × Carrying Pouch
- 1 × English User Manual
Ideal Applications
- Environmental Noise Monitoring
- Workplace Safety & OSHA Compliance
- Industrial Machinery Testing
- HVAC Systems
- Construction Sites
- Manufacturing Plants
- Schools & Universities
- Home Theater Calibration
- Automotive Diagnostics
- Entertainment Venues
- Airport & Traffic Noise Studies
- Research Laboratories
Comparison
| Feature | SLM-24 | SLM-25 |
|---|---|---|
| Backlit Display | ✔ | ✔ |
| MAX Hold | ✔ | ✔ |
| Fast / Slow Response | ✔ | ✔ |
| A/C Frequency Weighting | ✔ | ✔ |
| USB Power | ✔ | ✔ |
| Internal Memory | — | ✔ |
| Data Logging | — | ✔ |
| PC Interface | — | ✔ |
| Live Computer Display | — | ✔ |
| Windows Software | — | ✔ |
