Type: P11-5AMagnetic Induction Digital Electronic Counter InstructionFive-digit large LCD, super low power consumption, large and clear indicationPress the count/pause button (pause) to stop counting, after 0-30 seconds the LCD indication will automatically turn off and enter standby mode.Press the count/pause button again to turn on the indication and continue counting.Use magnetic induction, easy to install and accurate countingMaximum counting speed: 20 times per secondReset: by pressing the reset buttons on the board or externallyUse the common 5th battery, free from external power supplyAnti-vibration, effectively ensures the stable and reliable operation of the systemFree from mechanical wear, safe work, long service lifePower supply: 1.5V-AA 5th batteryReset modes: short/externalCounting range: 0---99999Available ambient temperature: -5-40 CelsiusMinimum counting PW: 10mS Distance within magnetic induction: about 5-10mm Distance outside magnetic induction: 30mm Battery installation: Make sure the battery is charged before use. First loosen the two outer screws on the outer casing, carefully remove the back cover (do not break the signal cable), then insert a 5th battery (not included in this counter, the customer must purchase it themselves, the lifespan of a common 5th battery is over half a year, while a high-performance battery, costing 2 yuan, is more durable for over 1 and a half years, and then replace the back cover and the two outer screws. Color: White Material: Plastic + Metal Size: Dimensions: 64x38x38xmm Hole size: 61x36mm Package content: 1 x Digital counter 1 x Magnetic induction switch 1 x Holder Only the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture to differ slightly from the real thing. The allowed measurement error is +/- 1-3 cm.