Sound Level Meter
Frequency weighting characteristics A (simulated human ear) & C (mechanical self-noise)
Time characteristic selection fast/slow reaction rate
Microphone 1/2" condenser microphone; AC/DC signal output; maximum lock
Overload display OVER / UNDER symbol indication; low power display; automatic shutdown / cancel the automatic shutdown
Packing method PP box + color box
Product net weight 308 grams (with battery)
| Measurement range | 30~130 dBA, 35~130 dBC |
| Accuracy | ±1.5 dB |
| Digital & Resolution | 5 Bit & 0.1 dB |
| Frequency response | 31.5Hz ~ 8.5KHz |
| Measuring gear | 30~130, 40~90, 50~100, 60~110, 80~130 |
| Sampling frequency | 2 times / sec |
| Power supply | 1.5V AA battery 4 or DC 6V 100mA DC power supply |
| Product size | 256*70*35 mm |
It measures the sound pressure level and can be used to identify toys that are close to the user's ears, rattles, squeezes, gunpowder cap toys, other hand-held toys, stationary or self-driven desktop, and ground toys, as well as hands, dragging toys, and clockwork toys that need to be started by the user's own hands. A rocking toy has a loud sound to prevent the child's hearing from being harmed by too much noise.
A sound-level metre measures the volume and loudness of music, noise, and other noises. A standard metre consists of an electrical signal generator, which turns sound into an electrical signal, and electronic circuitry, which operates on this signal to measure the desired qualities.
