Feature:The product is displayed by 6-bit LCD, and the reading is clearer.This product counts accurately and reliably.This is a digital counter, no mechanical wear, long service life, instead of electromagnetic counter.48*24 standard panel size, easy to install.Lithium batteries are built-in. The theoretical life of the batteries can be as long as three years and the memory time is long.Specification:Model: H7ET-BVMVoltage input: AC110-220VTiming display mode: hour / minute / second (Optional)Panel size: width 48* height 24* thickness 50mmOpening size: 22.5*45 mmTiming mode: positive timing; accumulated timeDisplay word height: 6.7mmBuilt-in battery: 3V, 800mA lithium-ion battery, good display, long memory time (battery life 3 years)Reset mode: panel button reset, rear terminal reset (can be reset automatically)Timing display mode: 00000 hours 0 minutes ~ 99999 hours 9 minutes (0.1 is 6 minutes)0000 hours 00 minutes ~ 9999 hours 59 minutes00 hour 00 minute 00 second ~99 hours 59 minutes 59 secondsTiming work signal: (110~220V power supply) Power on: Timing; Power off: Stop timingPackage list:1 * CounterNote:The actual product color may deviate from the photo due to light.There may be a slight deviation in the measurement of product.