Usage Tips:Type: P11-5AMagnetic Induction Digital Electronic Counter InstructionFive-digit big LCD, super low consumption, and clear indicationPress Counting/Pause key (Pause) to stop counting, after 0-30 sec,LCD indication will be automatically off and in standby state.Press the Counting/Pause key again to turn on the indication and continue to count.Use magnetic induction, easy to install and precise countingMaximum counting speed: 20 times per secondReset: through pressing the Reset buttons on board or exteriorUse the common 5th battery, free from external supplyAnti-vibration, efficiently the stable and reliable system operationFree from mechanical abrasion, safe work, long lifespan: 1.5V-AA 5th batteryReset modes: board/exteriorCounting range: 0---99999Available ambient temperature: -5-40 CelsiusMinimum counting PW: 10mSDistance within the magnetic induction: about 5-10 mmDistance out of the magnetic induction: 30mmBattery Installation:Make the battery is loaded before operation.First loosen two exterior screws on the external cover, remove the back cover lightly (do not break the signal line),then load one 5th battery (not included in this counter, customer should buy it by themselves,the lifespan of common 5th battery is above half year,while the battery with high performance, costing 2 Yuan, is more durable for more than 1 and half years,and restore the back cover and two external screws.Colour:WhiteMaterial:Plastic + MetalSize:Dimension: 64x38x38xmmHole size: 61x36 mmPackage Contents:1 x digital counter1 x magnetic induction switch1 x holderOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.