Features GOOD STABILITY: Adopt a shockproof design, which has a stable structure, effectively ensures the stable and reliable operation of the system. WIDE COUNTING RANGE: Magnetic induction electronic meter, the counting range is from 0 to 999999 and the highest counting frequency is 20HZ. APPLICABLE SCENES: The LCD screen is clear and easy to use, widely used in industrial punching machines, machine tools and assembly lines. ABS SHELL: This digital meter housing is made of excellent ABS material, lightweight and without mechanical wear, has a long service life. BATTERY POWERED: The meter is powered by a 1.5V AA battery (not included), no external power is required and the battery is easy to replace. Specification: Material: ABS Battery type: 1.5V AA battery (not included). Counting Range: 0-999999 Counting the highest frequency: 20HZ Minimum Pulse Width Counting: 1MS Clear Minimum Pulse Width: 1S Package list: 1 x Electronic Meter Tips: 1. The signal line for counting and clearing the input should be as short as possible to avoid wiring with strong electricity or power lines to avoid unnecessary interference; if necessary, please use shielded lines and the shielding layer is connected to the +counting terminal. 2. Only the non-voltage contact signal can be input into the counting signal and the clear signal, and no other electrical signal can be input. 3. The detection distance is related to the magnetic size of the magnet. You can change the detection distance by changing different magnets. 4. The working temperature of the magnet can not exceed 70℃. If the temperature is too high, the magnetism will disappear and induction will fail. 5. When the display of the screen is blurry, please replace the new battery; when it is not used for a long time, please press to pause the machine switch to turn off the meter and auxiliary battery; you can also remove the battery together to prevent the battery from deteriorating, dripping and damaging the meter. 6. Use ordinary AA battery, never connect external power supply (external power will damage the meter); the power consumption of the meter is ultra low and you don't need to press the pause switch to turn off the meter every day to save energy. Package List 1 x Electronic Counter