1. Product Overview
The ETENWOLF G200 Tire Pressure Gauge is designed for accurate measurement of tire pressure in various vehicles. It features a durable brass body, a 360-degree swivel chuck for easy access, and a glow dial for visibility in low-light conditions. This gauge is calibrated to ANSI B40.1 Grade A standards, ensuring reliable readings.
- Process Level Accuracy: Calibrated to ANSI B40.1 Grade A (±1% of span).
- Pressure Range: Measures 0-75 PSI, suitable for pickups, motorcycles, trucks, bikes, SUVs, RVs, and ATVs.
- Glow Dial: Large dial designed for clear readability in dark or low-light environments.
- Easy to Use: Equipped with a 360-degree swivel chuck for convenient valve access and an air bleeder valve for pressure adjustment.
- Weather Resistant: Maintains accuracy in extreme cold or hot weather conditions.

Image 1.1: Key components of the ETENWOLF G200 Tire Pressure Gauge, including the heavy-duty brass body, 360-degree swivel chuck, air bleeder valve, and rubber protective cover.
2. What's Included
Upon opening the package, verify that all components are present:
- 1 x ETENWOLF G200 Tire Pressure Gauge
- 4 x Valve Caps
- 4 x Schrader Valve Cores
- 1 x Storage Bag
Video 2.1: An overview of the ETENWOLF G200 Tire Pressure Gauge and its included accessories.
3. Setup and Initial Inspection
The ETENWOLF G200 Tire Pressure Gauge is ready for use out of the box. No assembly or batteries are required. Before first use, perform a visual inspection:
- Examine the gauge for any visible damage to the dial, brass body, or rubber protective cover.
- Ensure the 360-degree swivel chuck moves freely.
- Confirm the air bleeder valve button operates smoothly.

Image 3.1: The ETENWOLF G200 Analog Tire Pressure Gauge, ready for use.
4. Operating Instructions
Follow these steps to accurately measure your tire pressure:
- Prepare the Tire: Ensure the tire is cold (driven less than a mile) for the most accurate reading. Remove the valve cap from the tire stem.
- Attach the Gauge: Firmly press the chuck of the tire pressure gauge onto the tire valve stem. You may hear a slight hiss of air; this is normal. Ensure a tight seal to prevent air leakage.
- Read the Pressure: The needle on the dial will indicate the tire pressure. The gauge holds the reading until the air bleeder valve is pressed.
- Adjust Pressure (if needed): If the reading is higher than the recommended PSI for your vehicle, press the air bleeder valve to release air until the desired pressure is reached. If the pressure is too low, add air to the tire using an air compressor, then re-measure.
- Remove and Replace: Remove the gauge from the valve stem and replace the valve cap.
Note: The recommended tire pressure for your vehicle can typically be found on a sticker inside the driver's side door jamb, in your vehicle's owner's manual, or on the tire sidewall (maximum pressure, not recommended operating pressure).

Image 4.1: Visual guide for measuring tire pressure: Push the gauge onto the valve, read the pressure, and use the air bleeder valve if necessary.

Image 4.2: The glow dial feature of the ETENWOLF G200, illustrating readability in low-light conditions.
5. Maintenance and Storage
Proper maintenance ensures the longevity and accuracy of your tire pressure gauge.
- Cleaning: Wipe the gauge with a soft, dry cloth after each use to remove dirt or moisture. Avoid using harsh chemicals or abrasive cleaners.
- Storage: Store the gauge in its provided storage bag to protect it from dust, impacts, and extreme temperatures. Keep it in a dry place.
- Calibration: While the gauge is factory calibrated to ANSI B40.1 Grade A, periodic checks against a known accurate reference gauge can confirm continued accuracy.

Image 5.1: The ETENWOLF G200 gauge is designed for dependable performance in diverse weather conditions, emphasizing its robust construction.
6. Specifications
| Feature | Detail |
|---|---|
| Brand | ETENWOLF |
| Model Number | G200 |
| Pressure Range | 0-75 PSI |
| Accuracy | ANSI B40.1 Grade A (±1% of span) |
| Material | Brass, Rubber |
| Item Dimensions (L x W x H) | 4.76 x 2.83 x 1.38 inches |
| Item Weight | 285 g |
| Thread Style | Schrader |
7. Troubleshooting
If you encounter issues with your ETENWOLF G200 Tire Pressure Gauge, consider the following:
- Inaccurate Reading:
- Ensure the gauge is pressed firmly and squarely onto the valve stem to prevent air leaks during measurement.
- Verify the tire is cold for the most accurate reading.
- Compare the reading with another known accurate gauge if available.
- Difficulty Attaching:
- Use the 360-degree swivel chuck to find the best angle for attachment.
- Ensure the valve stem is clean and free of debris.
- Air Leakage During Measurement:
- Re-seat the gauge firmly onto the valve stem.
- Check the valve stem for damage or a loose valve core. The included spare valve cores can be used for replacement if needed.
8. Warranty and Support
ETENWOLF products are designed for durability and performance. For warranty information or technical support, please refer to the contact details provided with your purchase or visit the official ETENWOLF website. Keep your purchase receipt for warranty claims.
