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Class 1 Sound Level Meter ST12D
ST-12D- Professional Class 1 Sound Level Meter ST-12D is the Class 1 sound level meter with IEC 61672-1:2013 standard. Ideal for beginners and experts for occupational noise measurements. It has 25 - 140 dB wide range with comprehensive sound analyzers that calculate Leq, Lpeak, Lmax, and Ln. ST-12D supports optional 1/1 and 1/3 octave bands for real-time frequency analysis.
Standard 9-15 Days Delivery | Once received to our Hub
High Precision
25 - 140 db wide range compliant with Class 1 IEC 61672-1:2013 standard
Full Capabilties
Integral & statistical calculations, dosimeter, and 1/1 & 1/3 octave band (optional Updates)
Large Storage
Data logging and audio recording in MP3/WAV format with a 64 GB SD card
Smart Integration
Measures and displays the Leq value (A/C/Z frequency)
Microphone
ST-12D measures noise levels from a detachable 1/2 inch prepolarized condenser microphone with ±0.5 dB accuracy.
2.4" Vivid Display
The full-color display allows for clear measurement readings with a user-friendly interface, intuitive charts, and graphs.
Output Interfaces
ST-12D includes USB-C, serial, and AC/DC ports, making it easy to connect and integrate with your system.
Audio Recoding
ST-12D offers MP3/WAV audio recording formats with file export capability. Enhance recording efficiency with its trigger mode, activating recording only when sound levels reach a specified limit, effectively optimizing memory usage.
Easy Data Management
Simply install the software on your computer and connect it to the device. This software can further assist you in real-time noise monitoring and exporting historical data.
Optional 1/1 & 1/3 Octave Band Analysis
Experience precision in sound assestment with the optional 1/1 and 1/3 octave band analysis features for the ST-12D. These upgrades split noise into smaller frequency bands, helping you identify the noise source.
On-the-Go Waterproof Case
Carry your ST-12D in our durable-design waterproof case, which protects the device and all its accessories, ensuring safe transportation wherever you go.
Optional Accessories
| Fulfils Standard | IEC 61672-1: 2013 Class 1 |
| Dimensions | 250 × 76 × 33 mm |
| Weight | 340 g |
| Display | 2.4-inch 240 × 320 pixel full-color display Adjustable brightness & backlight can be turned off |
| Display Resolution | 0.1 dB |
| Refresh Rate | 0.5 s |
| Main Parameters of Measurement | LXYp, LXYmax, LXYmin, LXeq, LXeq,T, LXeq,t, LXpeak, L5, L10, L50, L90, L95, SD, Ld, Ln, Ldn, SEL, LXE, E, TWA, Lex, 8h, LAVG, DOSE X = A, C, Z Y = F, S, I, I10 |
| Measurement Range | 25 ~ 140 dB (143 dB C Peak) |
| Accuracy | ± 0.5 dB |
| Frequency Range | 10 Hz ~ 20 kHz |
| Frequency Weighting | A, C, Z |
| Time Weighting | F, S, I, I10 |
| Integrating Time | 1s ~ 99 h 59 m 59 s |
| Audio Recording | Record noise data in MP3/WAV format Synchronize/Trigger mode Sampling rate: 12 kHz, 24 kHz, 48 kHz / 16 bit, 24 bit |
| Storage Capacity | 4 GB internal memory 64 GB SD card |
| Output Interface | USB type-C, Bluetooth, AC/DC signal, Serial |
| Power Supply | 4 x AA alkaline batteries External power supply (USB type-C adapter): 5V, 1A |
| Operation Time | Max 24hrs by 4 x AA alkaline batteries (The operation time varies depending on the device settings and battery type)" |
| Operation Environment | Working temperature: -20 ~ 60 °C Relative humidity: 20% ~ 90% |
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