Product Features:
1. Using the traditional electromagnetic induction principle, strong anti-interference ability, stable and reliable;

| Magnification | 500,000 times |
| Positioning accuracy | ±0.2m |
| Output impedance | 350Ω |
| Working power supply | two standard 9V batteries |
| Quiescent current | <10mA |
| Working conditions | Ambient temperature: -20~50ºC; Relative humidity: ≤90%. |