The surface mounted Digital tach-hour Gauge allows you to easily monitor RPM and hours of use. These are the most accurate and reliable we have found. We use them for all our propeller testing.

• Large readable display allows you to easily monitor your engine's running hours up to 99,999 total hours ensuring that you perform proper maintenance on your engine.
• The LCD display lets you to easily view all gauge readings regardless of the angle or lighting conditions.
• Tachometer from 0-19999 rpms
• Non-resettable hour meter from 0-99999 Hours
• Surface mount for easy install, comes with double sided tape or can be bolted on
• Max RPM features
• Black case

Recommended setting for 30hp 2 stroke Mercury outboard. Pulse per revolution (PPr) 2.0