The ETENWOLF T500 is a gun/pistol-type digital tire pressure gauge with ANSI B40.7 Grade 2A certification, a 3–250 PSI range, and an LED backlit display. Its flexible hose reaches into tight wheel wells, and the pistol grip allows comfortable one-handed use during extended measurement sessions. At 350 g it is the heaviest model in the T-series, optimized for garage or compressor-adjacent use. The T500 includes a Presta adapter, ball inflation needle, balloon adapter, quick-connect fitting, and 2× AAA batteries in the accessory kit. The display reads in PSI, Bar, or kPa.
3–250 PSI
Measurement Range
±1 PSI
Accuracy (Grade 2A)
Gun-Type + Hose
Pistol Grip with Flexible Hose
Presta Adapter
Included in Kit
350 g
Weight
LED Backlit
Display
Core Specifications
The T500 is the only gun/pistol-type gauge in the ETENWOLF T-series. Its flexible hose provides reach into recessed wheel wells that can be difficult to access with a straight stick gauge. ANSI B40.7 Grade 2A certifies ±1 PSI accuracy across the full 3–250 PSI range. Over-pressure triggers an E22 error code above 250 PSI. The T500 carries CE certification (WTH25H03044227E, Waltek Services, 2025-03-10); FCC, RoHS, and third-party ANSI reports are not yet obtained.
| Parameter | Value | Notes |
|---|---|---|
| Range | 3–250 PSI | 0.2–17.2 Bar / 20–1,724 kPa |
| Accuracy | ±1 PSI | Full range; ANSI B40.7 Grade 2A |
| Form Factor | Gun/pistol grip with flexible hose | — |
| Display | LED backlit | Units: PSI / Bar / kPa |
| Battery | 2× AAA (included) | — |
| Accessories Included | Presta adapter, ball inflation needle, balloon adapter, quick-connect fitting, 2× AAA batteries | — |
| Over-Pressure Protection | E22 error | Triggers above 250 PSI |
| Drop Test | 1 m — passed | Protective outer shell |
| Presta Compatibility | Yes | Presta adapter included |
| Weight | 350 g | — |
| Launch Date | August 2025 | — |
T-Series Model Comparison
The T500 is the garage-first model in the T-series. Its gun-type form factor differs from the stick/pencil form of the T300, T400, and T600. All four models share the same 250 PSI or 200 PSI range and digital display; the T500 is uniquely suited to workshop environments where a pistol grip and hose are more practical than a compact handheld stick.
| Spec | T300 | T400 | T500 | T600 |
|---|---|---|---|---|
| Form Factor | Pencil/stick | Stick with hose | Gun-type | Stick with hose |
| Range | 3–200 PSI | 3–250 PSI | 3–250 PSI | 3–250 PSI |
| Accuracy | ±0.5 PSI (Grade 3A) | ±1 PSI (Grade 2A) | ±1 PSI (Grade 2A) | ±1 PSI (Grade 2A) |
| Battery | 2× AAA | 2× AAA | 2× AAA | 2× AA |
| Deflation Valve | No | No | — | No |
| Weight | 73 g | 265 g | 350 g | 270 g |
| Dimensions | 159×49×27 mm | 34×73×485 mm | — | 84×64×35 mm |
| Best for | Maximum precision | Extended range | Gun-style / garage | Extended range + AA battery |
Certifications & Compliance
The T500 carries CE certification issued by Waltek Services (Shenzhen) in March 2025. FCC, RoHS, and a third-party ANSI Grade 2A report have not yet been obtained.
| Certification | Report No. | Issuing Body | Date |
|---|---|---|---|
| CE — CE Marking | WTH25H03044227E | Waltek Services (Shenzhen) | 2025-03-10 |
| FCC — FCC.gov | — | — | Not yet obtained |
| RoHS — EU RoHS Directive | — | — | Not yet obtained |
| ANSI B40.7 Grade 2A | — | — | Third-party report pending |
Frequently Asked Questions
T500 vs T400 — when should I choose the T500?
Choose the T500 if you primarily work in a garage, connect frequently to a compressor, or need the flexible hose to reach deeply recessed valve stems in large trucks or commercial vehicles. The T500’s pistol grip is more comfortable for repeated or extended measurement sessions in a workshop setting. The T400 is more compact and better suited for portable on-road use where you carry the gauge in a vehicle.
Can the T500 be used directly with a compressor while inflating?
Yes — the gun-type hose connection is designed for compressor-adjacent use. You can check tire pressure while the compressor is connected; accuracy remains ±1 PSI. The T500 measures gauge pressure only — it does not inflate tires on its own. Connect a compressor to add air, then use the T500 to check the pressure.
What accessories does the T500 include?
The T500 accessory kit includes: a Presta-to-Schrader adapter for bicycle thin valves, a ball inflation needle for sports balls, a balloon adapter, a quick-connect fitting for compressor hose attachment, and 2× AAA batteries. All accessories are included in the box.
Is ±1 PSI accuracy maintained across the full 250 PSI range?
Yes — ANSI B40.7 Grade 2A certifies ±1 PSI or better across the full measurement range (3–250 PSI). This means at any reading from 3 PSI to 250 PSI the T500 is guaranteed to be within 1 PSI of the actual tire pressure.
Does the Presta adapter come included with the T500?
Yes — the T500 kit includes a Presta-to-Schrader adapter, which allows the gauge to measure thin-valve (Presta) bicycle tires. This adapter is included in the box; no additional purchase is needed for Presta valve compatibility.
T500 vs T600 — what is the difference?
Both the T500 and T600 have the same 250 PSI range and Grade 2A (±1 PSI) accuracy. The T500 is a gun/pistol-type gauge with a flexible hose and runs on 2× AAA batteries — optimized for garage compressor use. The T600 is a stick-type gauge with a hose, runs on 2× AA batteries (larger capacity), and features a glow-in-the-dark dial for low-light readability. Choose T500 for a pistol grip; choose T600 for longer battery life and the glow dial.
