5 Pcs Hall Effect Sensor NPN Normally Open 10mm Sensing Hall Effect Proximity Sensor Switch DC 5‑30V Item Type: Hall Effect Sensor Material: ABS Model: H12N1 N Control Output: ≤100mA Sensing Distance: Approx. 10mm/0.4in Rated Current: 30MA Response Frequency: ≥2KHz Working Environment Temperature: -20℃ to 80℃ Application: Hall sensor is applicable to the position measurement of pneumatic, hydraulic, cylinder and piston, and can also be used as limit switch Features: 1. When the magnetic wooden plaque is close, Hall effect will be generated, and the switch signal will be output after amplification 2. Compared with inductive sensor, it has the following advantages: can be installed in metal, can be installed side by side, and can pass through metal for detection 3. The distance will be affected by the magnetic field strength and the approaching direction of the detected object. Please pay attention to selecting the magnetic field polarity direction S or N