brand new and high qualityFeatures:Five large-screen LCD screen display, large and clear.Use the common AA batteries, without external power supply, and the replacement of the battery is convenient.Press the PAUSE button to pause/count, press the PAUSE button again, and resume counting.The input adopts the common contact signal. The selection of the sensor is simple and convenient, and the counting is accurate and reliable.Maximum counting speed: 4 times/second.Resetable zero: panel/external dual purpose.Seismic design effectively prevents data loss.No mechanical abrasion, reliable work, long service life.Specification:Power: 1.5V AA batteryResetable zero mode: panel/externalCounting range: 0~99999Resetable zero minimum pulse width: 0.1 secondCounting highest frequency: 4HZOperating temperature: -5~+40 CCounting minimum pulse width: 50mSContact maximum resistance: 1K OhmContact disconnection minimum resistance: 500K OhmDimensions: 63x37x30mm/2.48x1.46x1.18inch, wire length: 110cmColor: White&blackQuantity: 1 SetNote: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package includes:1 x LCD Display Digital Electronic Punch Counter (without battery)2 x Microswitch