Square AC/DC Hour Meter, Resettable

This resettable AC/DC hour meter tracks up to 99,999 hours with precise automatic display. Its contactless design allows broad compatibility. Built with a long-lasting low-power battery and IP68 waterproof potting, it delivers reliable performance even in harsh environments, making it ideal for generators, garden machinery, agricultural equipment, and other gasoline engines.

Specification

Features

1. Precision Date Recording: Provides precise runtime tracking with automatic data storage. Data remains intact for over 20 years, providing long-term reference.
2. Extended Battery Life: Built-in CR2050 button battery with low-power design delivers stable power for approximately 5 years. Achieves ultra-long standby without frequent battery replacement.
3. Smart Maintenance: Includes 5H/10H/20H maintenance reminders to support timely servicing and help extend equipment service life.
4. High Level Protection: Fully potted internal sealing achieves IP68 waterproofing and dust resistance, withstanding heavy rain, high-pressure washing, oil contamination, and severe vibration.
5. Inductive Sensing Design: Simply wrap the sensor wire around the spark plug five times. Timing automatically starts upon continuous detection of ignition signals.
6. Flexible Mounting: Dual-sided adhesive mounting allows secure installation anywhere near the engine, offering flexible placement without occupying additional space.

Timing Functions

• Total Hours: Records the vehicle's cumulative operating hours. Timing range: 0-99,999H.
• Single Session: Records the operating time of a single work session. Timing range: 0-99,999H. Can be reset to zero.
• Non‑Reset Total Hours: The total hours counter is protected against reset to prevent accidental operation.

Dimension

Maintenance Reminder Function

This hour meter features an intelligent maintenance reminder system, alerting you at 5H, 10H, and 20H intervals to clean the air filter, change the engine oil, and maintain valves.

• 5H Interval: The LCD flashes "CLEAN" to indicate that the air filter should be cleaned.
• 10H Interval: The LCD flashes "OIL" to indicate that the engine oil should be replaced.
• 20H Interval: The LCD flashes "CALCE" to indicate that valve maintenance is require.

Applications

Widely used across multiple industries, this hour meter is suitable for lawn and garden equipment, generators, marine applications, and powersports vehicles.It delivers reliable runtime date tracking across everyday and demanding operating conditions.

Tips: How to Determine Which Hour Meter Is More Durable and Reliable?

From a professional hour meter perspective, durability and reliability are primarily determined by the device’s ability to consistently measure true engine runtime under varying operational conditions. Key factors include the precision of the sensing mechanism, the resistance of internal components to environmental stresses such as vibration, moisture, dust, and temperature fluctuations, and the integrity of data retention over long periods or during power interruptions. A high-quality hour meter is designed to maintain accurate cumulative hours without drift or failure, ensuring that operational data remains dependable for maintenance planning and equipment management throughout its service life.