Description <br> Working Principle : Non-buried NPN normally open capacitive proximity switch <br> It could work with any kinds of bed materials, such as glasses, woods, metals, and so on <br> It is an auto leveling sensor for 3D Printers based on open-source. <br> Product Description: <br> Model: M12 capacitive proximity switch <br> Installation type: non-embedded Action mode: NPN normally open <br> Size: M12 x 62mm <br> Wiring length 510mm <br> Shell nickel plated brass, detection surface ABS <br> Detection distance: 5mm +/- 10% <br> Lag distance: less than 10% of the detection distance <br> Detection object: metal, non-metal: plastic, glass, wood, liquid: water, oil, etc. <br> Voltage: DC 6-36V Operating environment temperature: -25C-65C, no freezing <br> Use environment humidity: 35-95%RH <br> Colour: Silver <br> Material: Metal <br> Package Contents: <br> 1 x Proximity Sensor <br> Attention: Please remarks the 3d printer model in your order. <br> Only the above package content, other products are not included. <br> Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. <br> _x005f_x000D_ <br> _x005f_x000D_ <br> _x005f_x000D_ <br> _x005f_x000D_ <br> _x005f_x000D_ <br> _x005f_x000D_ <br>