Features 1、The shell is made of ABS plastic, which is scratch-resistant, wear-resistant and corrosion-resistant. 2、U-shaped groove design, easy to detect objects. 3、High precision, responsive, good use effect. 4、NPN normally open output mode, DC10-30V power supply voltage. 5、Made of high quality electronic components, stable and reliable performance. Specification Item Type: Photoelectric Sensor Switch Brand: BERM® Model: E3S-GS30E4 Output Mode: NPN Normally Open Detection Distance: 30mm Rated Current: 200mA Switching Frequency: <300Hz Insulation Resistance: >200MΩ Housing Material: ABS Plastic Detection Method: Trough Type / U Type Structure Type: Amplifier Built-In Type Application: Inductive Objects Package List 1 x Photoelectric Sensor Switch