ETENWOLF T300 Digital Tire Pressure Gauge 200 PSI
- ANSI B40.7 Grade 2A calibration, +/-0.5%
- Replaceable AAA batteries, 2 included
- Schrader valve chuck
- 81 g, 6.3 x 1.46 x 1.06 inches
- Plastic body in vivid orange
- 3 year warranty
Last refreshed Sep 11, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A battery digital gauge for checking car, truck and bike tires with a calibration grade stated on the listing. It only reads pressure, so you still need a separate pump to add air.
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ASIN: B0BY2GD9VCModel: T300Category: Tire Gauges
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Overview
Not a pump or an inflator, this ETENWOLF tool is a handheld digital gauge that reads tire pressure through a Schrader valve chuck. Press the chuck onto the valve and the reading shows on the digital readout, powered by replaceable AAA batteries.
A stated calibration grade and batteries you can swap yourself make it a gauge you can trust and keep in service. Its maximum reading is not in the spec table and no hose or bleed valve is listed, so check it suits your highest tire pressure.
Who it's for
Car, truck and RV owners who check pressures before trips get an accuracy grade on paper and a bright body that is easy to find. Riders whose bikes use non-Schrader valves need an adapter that is not in the box.
Pros and cons
- Calibration grade stated on the listing
- Batteries are replaceable, not sealed
- Batteries included in the box
- Bright orange body is easy to spot
- Maximum reading not listed in the specs
- Schrader chuck only, no valve adapters
- Plastic body rather than metal
- No hose or bleed valve described
Performance notes
Reading accuracy depends on a full seal between the chuck and the valve stem, since air escaping during the press lowers the reading. Fresh batteries hold the display steady, and the stated calibration grade sets the tolerance of each reading.
Specifications
| Brand | ETENWOLF |
|---|---|
| Model | T300 |
| Dimensions & fit | |
| Item weight | 0.18 pounds |
| Item dimensions | 6.3 × 1.5 × 1.1 inches |
| Power & efficiency | |
| Power source | Battery |
| Construction & materials | |
| Material Type | Plastic |
| Color | Vivid Orange |
| Included components | |
| Included Components | tire pressure gauge, 2 x AAA batteries |
| Warranty & support | |
| Warranty Description | 3 years |
| Other details | |
| Thread Style | Schrader Valve Chuck |
| Accuracy | ANSI B40.7 Grade 2A (+/-0.5%) |
Frequently asked questions
What comes in the ETENWOLF T300 box?
The tire pressure gauge and 2 AAA batteries. No case, valve adapter or inflator is listed.
Can the ETENWOLF T300 inflate a tire?
No. It is a pressure gauge only. Use a separate pump or compressor to add air.
Does the ETENWOLF T300 work on bike tires?
It uses a Schrader valve chuck, so it fits Schrader valves. The listing names no adapter for other valve types.
What happens when the T300 batteries run down?
The gauge takes AAA batteries that you replace yourself, and the box ships with 2.