Hour meter?

[scrapart]

Ok so I have a brand new Quincy air-compressor and I don't want to play the guessing game on maintenance and I'm no good at writing stuff down. I'm wondering if there is a way to install an hour meter on my air-compressor?

 

[Mohawk Dave]

http://weldingweb.com/showthread.php?t=86591

 

[Burtonrider10022]

Vibration Activated Hour Meter No Power Required Use for Trailers Motors Equipment Machinery

Functions:Hour Meter
Weight:60g
Rec/Displays to:9,999.9 Hrs
Operating Temperature:Standard -30°C to +85°C
Resolution:0.1 Hrs
Track the Service Life of all Non-Engine Applications - automatic vibration activated recording.
No Power Required - sealed waterproof lifetime battery inside
Preventative Maintenance - bearings, chasis lubrication etc...
Easy Installation - peel & stick, no wiring necessary. Just plug and play!
Records & Displays to 9,999.9 hours
Hour glass symbol appears & flashes on/off to indicate counting time.
Automatic Roll over
100% epoxy encapsulated casing resists water

So... this should work...

 

[malibu101]

Vibration Activated Hour Meter No Power Required Use for Trailers Motors Equipment Machinery

Functions:Hour Meter
Weight:60g
Rec/Displays to:9,999.9 Hrs
Operating Temperature:Standard -30°C to +85°C
Resolution:0.1 Hrs
Track the Service Life of all Non-Engine Applications - automatic vibration activated recording.
No Power Required - sealed waterproof lifetime battery inside
Preventative Maintenance - bearings, chasis lubrication etc...
Easy Installation - peel & stick, no wiring necessary. Just plug and play!
Records & Displays to 9,999.9 hours
Hour glass symbol appears & flashes on/off to indicate counting time.
Automatic Roll over
100% epoxy encapsulated casing resists water

See my underlined in the above.
What is the lifetime of the battery that is sealed inside?