Features Magnet Induction: The counter adopts magnet induction, which is simple and convenient to install, can count accurately Anti Shock Design: The counter is designed for shock resistant, which can effectively ensure the stable and reliable operation of the system Stable and Reliable: The counter has no mechanical wear, can stable and reliable to operate, has long service life AA Battery: The counter uses ordinary AA battery, no external power supply is required, and the battery is easy to replace, battery not included Widely Application: This counter can be used in punching equipment, printing and textile machines, assembly lines, auto repair equipment, etc. Specification: Item Type: Punch Electronic Counter Material: ABS Battery Model: 1.5V AA battery (not included) Counting Range: 0-99999 Count Maximum Frequency: 20HZ Counting Minimum Pulse Width: 1MS Clear Minimum Pulse Width: 1S Magnet Induction Proximity Distance: Approx.10-15mm/0.4-0.6in Magnetic Induction Connection Distance: Approx.≥35mm/1.4in Package List: 1 x Punch Electronic Counter 1 x Magnetic Induction Switch 1 x Magnet 1 x Bracket Package List 1 x Punch Electronic Counter 1 x Magnetic Induction Switch 1 x Magnet 1 x Bracket