ST1
Two instruments.
One body.
A velocity chronograph and a suppressor, built into a single aluminum tube that threads straight onto your muzzle.

Anatomy
Every zone has a job.
Suppression zoneOptional core · 6 / 8 / 10 mm
Measurement zoneSensor · display · buttons
Rotary connectorPatented · turns freely
Adapter thread½-20 UNF / M12 × 0.5

Display
Read it. Trust it.
- Velocity in m/s or ft/s
- Muzzle energy (J) and energy density (J/cm²)
- Shot counter
- Chinese / English interface

Rotary connector · Patent
Screen up. Always.
The adapter end stays fixed to the muzzle while the chronograph body keeps turning, so you can line up the display with the way you normally hold the gun.
Specifications
The numbers.
- Velocity range
- 10 – 500 m/s (32.8 – 1,640 ft/s)
- Projectile size
- Ø 4.5 – 9 mm (measuring bore Ø 11 mm)
- Dimensions
- Ø 42.3 × 242.5 mm
- Weight
- 275 ± 5 g
- Material
- Aluminum
- Color
- Fog Deep Iron Grey
- Adapter thread
- ½-20 UNF / M12 × 0.5 — custom threads for volume orders
- Suppressor
- Built-in for PCP in 6 / 8 / 10 mm calibers, or cosmetic shell only
- Battery
- Built-in 500 mAh lithium, USB Type-C charging
- Runtime
- 24 h with screen auto-sleep · 6 h screen always on
- Display
- Metric / imperial · Chinese / English
- Durability
- 10,000-shot velocity self-test
- Warranty
- 6 months from delivery to the end customer
Please note
ST1 is designed for PCP and non-powder air guns only (CO₂, BB, electric and similar). Its inner chamber is made from a blend of plastics — the pressure of a powder firearm will damage the chamber and the suppressor parts.
Do not tap threads yourself — it can throw off the bore alignment. Custom threads are available for volume orders.