The FNIRSI FDM01 is a handheld decibel meter for checking noise in workshops, factories, classrooms, generators and audio setups. It measures 30 – 130dB with ±1.5dB accuracy, A-weighting and fast or slow response.
It meets IEC651 Type 2 and ANSI S1.4 Type 2, adds temperature and humidity readings, a light alarm and MAX hold, and runs on a rechargeable 600mAh battery.
Key Features
- 🔊 30 – 130dB range ±1.5dB accuracy at 94dB/1kHz
- 📏 A-weighting, fast and slow response
- 📈 MAX hold and over/under indication
- 🌡️ Temperature and humidity readout
- 🔋 Rechargeable 600mAh battery with 15-minute auto power-off
Technical Specifications
| Measuring range | 30 – 130dB |
|---|---|
| Accuracy | ±1.5dB (94dB @ 1kHz) |
| Frequency range | 31.5Hz – 8.5kHz |
| Weighting | A |
| Response | Fast / Slow |
| Resolution | 0.1dB, 2 readings/s |
| Microphone | 6 mm condenser |
| Standards | IEC651 Type 2, ANSI S1.4 Type 2 |
| Battery | 3.7V 600mAh lithium |
| Operating conditions | 0 – 40°C, 10 – 80% RH |
What's in the Box
- 1 × FNIRSI FDM01 sound level meter
- 1 × charging cable
- 1 × product manual