Hi Manager,
 
Still worry about the information will be missed while tachometer be burnt or faulty ?
 
We have a nice solution for you:85mm Tachometer with Hour Meter, ELECTRICAL
 
1.Dual Power Supply System to avoid LCD blind when burnt or faulty
2.Support RPM signal input from W-Terminal of Alternator or RPM Sensor
3.Working Voltage:8~80V DC
 
etc...
 
Please contact me for more information.
 
Regards
Jo 
 
 
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Tenet Auto Electronics Ltd.
Tel:+86-755-82591445
Skype/Email: jo.wong@tenet.com.hk
Whatsapp/Mobile:+86 185 0301 7253
Web:tenet.com.hk
Facebook:www.facebook.com/tenet.gauges