Yooreal Digital AC DC 5-277V Supply Hours Counter,Maintenance Hour Meter,Initial Hours Setup,Works on Various of ZTR Riding Lawn Mower Tractor Generator Land Trimmer UTV Brush Cutter.

What It Is

This universal hour meter tracks engine run time on any machine with an AC or DC electrical system (5–277V). It’s designed for zero-turn mowers, tractors, generators, trimmers, UTVs, and brush cutters, and includes an initial hours setup feature so you can preset the starting value.

Fitment & Compatibility

• Voltage range: Works on 5–277V AC or DC, covering most small engines, battery systems, and generator coils. Does not require a dedicated 12V battery.
• Connection: Two-wire hookup (one to ground, one to a switched power source or spark plug wire). No special adapter needed.
• Machine types: Compatible with ZTR riding mowers (e.g., John Deere, Husqvarna, Cub Cadet), walk-behinds, tractors, generators, trimmers, and UTVs. Not for machines with non-standard ignition systems or high-voltage coils above 277V.
• Before buying: Confirm your machine has a switched power source (keyed ignition or battery) or a spark plug wire for inductive pickup. Measure mounting hole spacing (standard 1.5” center-to-center) or plan to use adhesive backing.

Key Things to Know

• Quality: Solid-state digital display with no moving parts; rated for outdoor use but avoid direct water spray. Backlight is bright enough for daylight reading.
• Installation difficulty: Easy—strip wires, connect to ground and a switched 12V/120V source. No programming needed for initial setup (press and hold to set hours).
• Common gotchas: If your machine has a magneto ignition without a key switch, you’ll need to connect to the spark plug wire (inductive pickup not included). The meter resets if power is lost for more than a few seconds unless the internal battery is charged (needs 2–3 hours run time first).
• Accuracy: ±0.5% typical; fine for maintenance tracking but not lab-grade.

Should You Buy It

Buy this if you need a simple, low-cost way to track maintenance intervals on multiple gas or diesel machines with different voltages. It’s ideal for DIYers or small fleet owners who want a universal meter without hardwiring to a battery. Skip it if you require a sealed, waterproof unit for constant outdoor exposure or need a model with inductive pickup included.