Sekhmet 255 STD Digital Pressure Gauge – Gen 2
The world's smallest high-pressure gauge with the largest screen, highest accuracy, and fastest readings. This 25.5mm diameter digital gauge features elegant touch-button controls, seamless one-piece construction, and a rechargeable battery lasting up to 3 months per charge. Magnetic charging eliminates the need to release pressure for battery replacement.
Thread Compatibility
1/8 BSPP thread – Designed for FX (except early DRS editions), Daystate, BRK, Airgun Technology, Kalibrgun, Edgun, RTI, and other compatible air rifles.
255 STD Model Features
Displays current pressure only without calculation functions—ideal for regulator-equipped airguns. Monitor minute pressure chamber changes after each shot to verify pressure returns precisely to your set value, ensuring consistent air usage and improved shooting accuracy.
- 5-level battery indicator
- Low battery warning with flashing alert
- Charging reminder notification
Specifications
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Pressure Range: 15–300 bar (217–4351 psi)
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Accuracy Class: 0.25 (±0.75 bar maximum error at 300 bar)
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Display: 6.3-inch large non-illuminated LCD
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Dimensions: 25.5mm diameter × 18.5mm height (thread exclusive)
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Weight: 25g
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Pressure Units: Bar only (no PSI option)
Package Contents
- Gen-2 255 STD Gauge (1/8 BSPP threaded)
- User manual
- Magnetic USB charging cable
- Sealing kit (O-ring, X-ring, PTFE gasket)
Installation Guidelines
Important: Hand-tighten only—stop when seal resistance is felt. Never use a wrench or over-tighten. Excessive force may deform the case, detach the panel, or damage the ceramic sensor causing inaccurate readings.
Battery Maintenance
- Frequent use requires no special charging attention
- If idle, fully charge at least once every 3 months (minimum 1 hour per charge)
- Proper maintenance prevents electrolyte drying, power degradation, and extends service life