Feature:Has the same features as hour meter plus feature Indicates operation in RPMs and hours.Easy installation no power or ground requiredNo Battery Required connects to spark plug wire.Works on any oline engineMaximum RPMs 99999,Maximum Hours:9999.9Functions:Tach/Hour meter Shows RPM's when the engine is running. When the engine is off. the meter shows total hours accumulatedInstalling Method:1. Wrap the included pick-up wire around the spark plug wire five times.Start wrapping the pick-up wire about 4cm from the end of spark plug boot. Use the included zip lie to secure the pick-up wire wrapping as shown in the photo right2. Before continuing the installation,insert the pick-up wire into the rear of the meter Start the motor to e sure the meter is picking up the ignition signal.If it is,The LCD will Show RPM's when the engine is running. When the engine is off.the meter shows total hours accumulated. You'll have to wait at least 6 minutes for the timer to increment the timer display(1/10th of an hour). If it is not picking up the ignition signal,slide the pick-up wrap closer to the spark plug boot.3. if the meter is succefully picking up the spark signal,run and zip tie the pick-up aone of the throttle cables.e sure the pick-up wire can not e contact with the engine.Also,e sure you leave enough slack(about8cm)so removing the spark plugwire is poible.Keep in mind the general location of final mounting location on the frame spare.Securing Method-ing into your frame with Ф2.5mm socket,then secure it to the frame coming with two pick-up screws.-Using padded double-sided tape on the backside of the meter and secured it to the frame spar with zip ties.0