1、With dust‑proof and waterproof structure, it has good durability under the conditions of cooling liquid and iron filings flying 2、No built‑in amplifier required, no deviation due to temperature and power supply voltage fluctuations of the part where the tool is located, can be directly input to the NC and program (PLC) 3、The sharpness corner of the tool directly contacts the tip of the tool related to the machining size, and its position, size, and output signal are measured, with high accuracy. 4、Alarm signal can be sent when overtravel. The product adds a blowing function, which can automatically clean the counter knife surface. 5、The shell is made of ground 4S material, durable and not easy to damage