This row counter uses magnetic induction, easy to install and accurate counting. This electronic counter presses the Count/Pause button to stop counting. After 0-30 seconds, the LCD indication automatically turns off and enters standby mode. Press the Count/Pause button again to turn on the indication and continue counting. This click counter with shockproof design effectively ensures stable and reliable system operation, free from mechanical wear. This digital counter is made of plastic, which is robust and durable, safe and has a long service life. This number click counter uses the standard AA battery, free from external power supply. This digital counter is made of plastic, which is robust and durable, safe and has a long service life; The working temperature of the magnet should be within 70 degrees; Too high a temperature will cause the magnet to lose its magnetism and further invalidate the induction; Five-digit LCD display, extremely low power consumption, large and clear display. Features Digital counter - Color: As shown. - Material: Plastic. - Size: Hole size: 2.5x1.4 inches. Power supply: 1.5V-AA battery (not included). Usable ambient temperature: -5 to 40C. Magnetic induction range: approximately 5-10 mm. Maximum counting speed: 20 times per second. Note: 1. The digital counter does not come with a battery. 2. Due to different lighting and screen settings, the product color may differ slightly from the image. 3. Due to different manual measurement methods, please allow slight size differences. Package includes 1 * Digital counter 1 * Proximity sensor 1 * Mounting bracket 1 * Magnet