TM-104 Sound Level Meter
According to standard
- IEC 61672-1 class 2
- IEC651 Type2
- ANSI1.4 Type2
Application
This sound level meter is a digital noise meter auto-shifting function that can be applied to the measurements for both environmental noise and mechanical noise.Features
- 4 digital LCD.
- Frequency weighting: dBA, dBC
- Time weighting: FAST, SLOW
- Data hold.
- Autoranging.
- Auto power off(default 15 min)and disable auto power off.
- Maximum and Minimum hold
- Overloading “OVER” or “UNDER”.
- Low battery indication
Specifications
Environmental conditions at 23°C ± 5°C| Sample rate | 1 second |
| According to standard | IEC 61672-1 class 2 IEC651 Type2 ANSI S1.4 Type2 |
| Microphone | ½inch Electret condenser microphone |
| Dynamic Range | 50 dB |
| Measuring range | 35 ~ 130 dBA |
| 40 ~ 130 dBC | |
| Frequency response | 31.5 Hz ~ 8 KHz |
| Resolution | 0.1 dB |
| Time weighting | FAST 125 ms ; SLOW 1s |
| Frequency weighting | A / C |
| Accuracy | ±1.8 dB (reference SPL 94 dB @1KHZ) |
US 6868 
GB 6721 
CA 6015 
AU 5798 
IE 4272 
NZ 1170 
BR 733 
SG 609 
