Simple: 3Dtouch can be easily applied due to its small size and simple structure. Gathering information and firmware settings will be an easy task as 3dtouch works as usual with automatic bed leveling sensors.Smart: Self-test: Push the nails three times to test when the power supply. Alarm: LED light flashes if a problem is found during self-test or surgery.High precision: The standard deviation of 3dtouch in repeatability is about 0.005mm, in precise. If you choose 3dtouch, the 3D printer will be a first-class masterpiece, giving you a pleasant experience.Innovative electromagnetic: super power saving; In the idle state, while the pusher is pulled out or retracted, no current flows to the solenoid valve, and the standby current of the entire device is lower than 15ma on average, while in the working state, while the foot is walking, suddenly about 100ms, the device flows under 300ma. Low power consumption reduces Joule heating even further, preventing thermal problems.Bed width options: 3dtouch doesn't use any light and doesn't approach (inductive/capacitive) sensors. 3dtouch is controlled by Hall effect, providing high precision. Therefore, the bed material can be freely selected.Optimized structure: larger volume3dtouch is a tech-intensive one. Build size can be set larger than other existing automatic bed level sensors.3D-touch is a fully automatic universal 3D printer hotbed leveling probe (automatic leveling probe)Its advantages are simplicity, compactness, high precision, good compatibility, and can be compatible with all bed surface materials, such as glass, metal, wood, plastic, acrylic, etc.Wiring:3d-touch wiringWiring 3Pin: Black (-, GND)red (+5V)blue (control signal)2PIN:Black (-, GND)Yellow (Zmin)Colour: random colors, don't accept the specified colorMaterial: metal + plasticPackage Contents:1 * 3D-touch probe2 * M2.5 screws2 * M2.5 Nuts1 * L wrench (line color random, don't accept the specified color)1 * Dupont wire 2pin female to female (1m/3.28ft) (line color random, don't accept the specified color)1 * Dupont cable 3pin female to female (1m/3.28ft) (line color random, don't accept the specified color)Only the above package content, other products are not included.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.