Overview
The Johnson Controls G-2010-300 is a general-purpose air pressure gauge designed for monitoring pressure in HVAC controls, pneumatic systems, and building automation applications. With a 2-1/2-inch dial face and 0–30 PSI (0–200 kPa) range, this gauge delivers clear, reliable pressure indication for technicians and controls specialists.
Key Features
- Dual-scale readout: PSI and kPa marked for versatile system compatibility
- Large 2-1/2-inch dial: Enhanced visibility and easy reading from a distance
- Removable clear plastic lens: Simple maintenance and cleaning access
- Sturdy construction: Steel case with bronze bourdon tube for durability
- Center-back NPT connection: Standard 1/8″ NPT stem for straightforward installation
- Analog pressure indication: Real-time, non-electronic pressure monitoring
Technical Specifications
- Pressure Range: 0–30 PSI / 0–200 kPa
- Dial Size: 2-1/2 inch
- Connection Type: 1/8″ NPT center back stem
- Accuracy: 3–2–3% of full range per ANSI B40.1M
- Ambient Temperature Limits: −20 to +150°F (−29 to +66°C)
- Case Material: Steel
- Bourdon Tube: Bronze
- Lens: Clear acrylic, removable for cleaning
- Mounting: Flush or surface
- Compatibility: Air, oil, and water compatible
Typical Applications
- HVAC system pressure monitoring and diagnostics
- Pneumatic control circuits and automation systems
- Compressed air distribution lines
- Building automation and facility management
- Service technician field pressure indication and troubleshooting
Compatibility & Replacements
Compatible With
- Pneumatic control systems and circuits
- HVAC building automation platforms
- Compressed air, oil, and water service lines
- Johnson Controls BACnet and direct digital control (DDC) systems
- Standard 1/8″ NPT mounting points (flush or surface installation)
Replaces / Drop-In Replacement For
- Johnson Controls G-2010-5 (1-1/2″ dial, same pressure range)
- Johnson Controls G-2010-11 (2″ dial, same pressure range)
- Other OEM pressure gauges rated 0–30 PSI with 1/8″ NPT center-back stem
Works With
- Johnson Controls pneumatic control modules and switches
- HVAC building management systems
- Pressure transducers and sensor packages (gauge-level visualization)
- Diaphragm seal kits and pressure isolators (optional, with proper adapters)
