1. Product Overview
The YOOREAL HM016 is a wireless vibration-activated hour meter designed to track the operating time of various engine-powered equipment. It operates without direct wiring connections to the engine's electrical system, relying solely on vibration detection.
This device is suitable for a wide range of applications, including gasoline and diesel engines, as well as AC/DC/battery-powered equipment. Its robust design, sealed with 100% epoxy, ensures durability and reliable performance with an IP68 waterproof rating.

Image 1.1: The YOOREAL HM016 wireless vibration hour meter, showing its compact black casing and digital display.

Image 1.2: Examples of equipment where the YOOREAL HM016 can be applied, including generators, lawnmowers, motorcycles, and ATVs.
2. Key Features
The HM016 hour meter offers several features designed for convenience and reliability:
- Wireless Operation: Activates and tracks hours based on vibration, eliminating the need for complex wiring.
- Total Hour Tracking: Records total operating hours up to 99,999 hours.
- High Waterproof Rating: 100% epoxy sealed construction provides an IP68 waterproof rating, allowing operation up to 10 meters underwater.
- Wide Compatibility: Compatible with most gasoline/diesel engines, AC/DC/battery-powered equipment.
- Integrated Battery: Features a built-in CR2430 battery for long standby life.
- Vibration Frequency: Operates with vibration frequencies greater than 4Hz.

Image 2.1: The hour meter display, indicating a total hour range of 0-99,999 hours and timing accuracy details.
3. Installation
The HM016 hour meter offers flexible installation options to suit various equipment types.
3.1 Mounting Options
The device can be installed using either screws or double-sided adhesive tape.
- Screw Mounting: Secure the meter to a suitable position on the engine or equipment using the provided screws. Ensure the mounting surface is stable and can transmit vibrations effectively.
- Double-Sided Adhesive Mounting: For a non-permanent or less invasive installation, use strong double-sided adhesive tape to attach the meter to a clean, flat surface on the equipment.

Image 3.1: The YOOREAL HM016 hour meter shown with both screw mounting and double-sided adhesive tape options.
3.2 Signal Acquisition
To enable the hour meter to detect engine operation, it is necessary to prepare the device by cutting a specific wire. Locate the small wire coil on the back of the product, typically associated with the telecommunication wire. Carefully cut this wire to activate the vibration detection function.

Image 3.2: The YOOREAL HM016 hour meter installed on a lawnmower engine, illustrating its placement for vibration detection. A note indicates to cut the wire on the back before use.
4. Operating Instructions
Once installed and activated, the YOOREAL HM016 operates automatically.
- Automatic Tracking: The meter begins accumulating operating hours when it detects vibrations from the equipment.
- Display: The LCD screen continuously displays the total accumulated operating hours. The display can show readings up to 99,999 hours.
- Accuracy: For readings between 0 and 9999.9 hours, the accuracy is 0.1 hours. For readings between 10000 and 99999 hours, the accuracy is 1 hour.
- Vibration Threshold: The device is designed to detect vibrations with a frequency greater than 4Hz to ensure accurate tracking of active operation.

Image 4.1: A close-up view of the YOOREAL HM016's LCD screen, showing the digital hour display and "VIBRATION ACTIVATED" text.
5. Maintenance
The YOOREAL HM016 is designed for minimal maintenance due to its sealed construction.
- Cleaning: Wipe the exterior of the meter with a soft, damp cloth as needed. Avoid using harsh chemicals or abrasive cleaners.
- Battery: The device contains an integrated CR2430 battery. Due to the 100% epoxy sealing for waterproofing, the battery is not user-replaceable. The meter is designed to operate for its expected lifespan on the factory-installed battery. Once the battery is depleted, the entire unit will require replacement.
- Waterproof Integrity: The epoxy sealing provides an IP68 waterproof rating. Avoid attempting to open the unit, as this will compromise its waterproof capabilities and void the warranty.

Image 5.1: The YOOREAL HM016 hour meter shown submerged in water, demonstrating its IP68 waterproof rating.
6. Troubleshooting
This section addresses common issues you might encounter with your YOOREAL HM016 hour meter.
- Meter Not Counting Hours:
- Ensure the small wire coil on the back of the product has been cut as per installation instructions.
- Verify that the equipment is producing sufficient vibration (frequency >4Hz) during operation.
- Check if the meter is securely mounted to a part of the equipment that effectively transmits vibrations.
- If the meter has been in use for an extended period, the internal battery may be depleted. As the battery is not replaceable, the unit will require replacement.
- Display Not Visible:
- The internal battery may be depleted. The unit will require replacement.
- Ensure the display is not obscured by dirt or debris.
If you experience issues not covered here, please refer to the Warranty & Support section for assistance.
7. Specifications
| Feature | Specification |
|---|---|
| Brand | YOOREAL |
| Model | YR-HM016 |
| Material | Epoxy (100% sealed) |
| Wireless Type | Vibration-activated |
| Total Hour Range | 0-99,999 hours |
| Timing Accuracy | 0-9999.9 h (0.1 h accuracy); 10000-99999 h (1 h accuracy) |
| Waterproof Rating | IP68 (up to 10 meters underwater) |
| Vibration Frequency | Applicable >4Hz |
| Battery | Integrated CR2430 (non-replaceable) |
| Dimensions (Approx.) | Length: 54mm (2.13 inches), Width: 23.7mm (0.93 inches), Height: 15.5mm (0.61 inches) |

Image 7.1: The YOOREAL HM016 hour meter displaying its physical dimensions in millimeters and inches.
8. Warranty and Support
YOOREAL is committed to providing reliable products and customer service.
- Warranty Period: The product comes with a 2-year technical support and after-sales service period.
- Quality Issues: In case of any quality-related problems with the product within the 2-year period, YOOREAL will provide a free replacement service.
- Customer Support: For any questions, concerns, or technical assistance, please contact the seller directly through the Amazon platform. The YOOREAL customer care team is available to assist you.