Features SIX DIGIT CLEAR DISPLAY --- Six digit large screen LCD display, possess ultra low power consumption, long battery life, large and clear display EASY TO OPERATE --- Press the pause switch(POWER) for one second to pause the count, save the data, and enter the shutdown state, press the pause switch again for one minute to turn on the screen display and resume the count ACCURATE AND CONVENIENT --- This counter using magnet induction, simple and convenient installation, bring accurate counting FAST COUNTING SPEED --- Panel mounted fixing screws have a maximum counting speed of 20 times per second, 1200 times per minute. When the magnet is sensed, the ok indicator will be displayed on the screen EASY BATTERY REPLACEMENT --- Using ordinary AA batteries(not included), no external power supply is required, and the battery is easy to replace, very convenient Feature: 1. SEISMIC PROOF AND DURABLE: Adopt seismic proof design, effectively ensure the stable and reliable operation of the system, no mechanical wear with long service life Specification: Item Type: Digital Counter Material: ABS Battery Model: 1 x 1.5V AA battery(not included) Counting Range: 0-999999 Highest Frequency of Counting: 20HZ Counting Minimum Pulse Width: 2MS Magnet Induction Proximity Distance: Approx. 10 ~ 15mm / 0.39 ~ 0.59in Magnetic Induction Distance: Approx. 35mm / 1.38in Clear Minimum Pulse Width: 1S Ambient Temperature: -5~40 Dimension: Approx. 68 x 30 x 45mm / 2.68 x 1.18 x 1.77in Hole Size: Approx. 61 x 35mm / 2.4 x 1.38in (The size may be certain error due to manual measurement) Package List:1 x Counter1 x Magnetic Control Induction Switch1 x Magnet1 x Bracket Note:1. The signal line for counting and clearing 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 contact signal without voltage can be input for the counting signal and the reset signal, and no other electrical signals can be input. 3. The sensing distance is related to the magnetic size of the magnet. You can change the sensing distance by changing different magnets. Package List 1 x Counter 1 x Magnetic Control Induction Switch 1 x Magnet 1 x Bracket