Overview
SSI Technologies MG1-200-A-9V-R is a MediaGauge™ digital pressure gauge designed for stand-alone operation in industrial and commercial applications. This battery-powered gauge measures 0–200 psi with ±1.0% full-scale accuracy and features an LCD backlit display for clear readings in any lighting condition. The unit is NEMA 4X rated, making it suitable for harsh environments, including marine applications where corrosion resistance is critical.
Key Features
- LCD backlit 4-digit display with switchable pressure units (psi, bar, MPa)
- 9V battery operation with automatic shutoff after 5 minutes (battery saver mode)
- 316L stainless steel input port with superior corrosion resistance in saltwater and seawater
- NEMA 4X enclosure rating for harsh industrial and marine environments
- Media-isolated piezoresistive sensing element with temperature and calibration compensation
- 1/4″ NPT threaded connection (bottom location mount)
Technical Specifications
- Pressure Range: 0–200 psi
- Accuracy: ±1.0% full scale
- Display: LCD, backlit, 4-digit
- Power Supply: 9V battery
- Connection: 1/4″ NPT male threaded port
- Mounting Location: Bottom (lower mount)
- Sensor Material: 316L stainless steel
- Socket Material: 304L stainless steel
- Gauge Case: ABS plastic
- Dial Size: 2.5 inches
- IP/NEMA Rating: NEMA 4X
- Display Units: psi, bar, MPa
- Country of Origin: Taiwan
Typical Applications
The MG1-200-A-9V-R is widely used in:
- Refrigeration and HVAC systems
- Hydraulic and pneumatic equipment monitoring
- Marine and offshore industrial applications
- Process media environments (brake fluid, diesel, hydraulic fluid, motor oil, nitrogen, compressed air)
- Wastewater and saltwater pump systems
- Field service and portable pressure testing
Compatibility & Replacements
Compatible With
- Standard 1/4″ NPT male threaded gauge ports
- Bottom-location gauge panel mounting configurations
- 9V battery-powered gauge systems
- Dry-break and quick-disconnect couplers (QDI)
Replaces / Drop-In Replacement For
The MG1-200-A-9V-R is the digital equivalent of mechanical 0–200 psi analog gauges with 1/4″ NPT connection. Verify compatibility with your system integrator before ordering to confirm mounting location and pressure rating match your application.
Works With
- Standard industrial gauge manifolds and pressure stations
- Portable hydraulic and pneumatic test kits
- OEM equipment pressure monitoring ports
- Wet/wet-differential pressure applications



