Overview
The Numatics F-R100 pressure gauge (also designated F+R 100) is a dual-scale instrument for accurate air pressure measurement in pneumatic and hydraulic systems. Manufactured by ASCO Numatics (Emerson), this back-mount gauge displays readings in both PSI (0–100) and BAR (0–11) scales, making it suitable for international applications and diverse industrial environments.
Key Features
- Dual PSI/BAR scale for flexible pressure monitoring
- 1/8″ NPT back-fitting design for easy system integration
- 2-inch (50.8 mm) dial face for clear visibility
- Lightweight, durable construction (0.15 lbs)
- Reliable performance in pneumatic and hydraulic systems
- Discontinued model—limited stock available
Technical Specifications
- Pressure Range: 0–100 PSI / 0–11 BAR
- Connection Type: 1/8″ NPT back fitting
- Dial Diameter: 2 inches (50.8 mm)
- Weight: 0.15 lbs (68 g)
- Mounting Position: Back mount
- Manufacturer: ASCO Numatics (Emerson)
- Status: Discontinued by manufacturer
Typical Applications
The Numatics F-R100 is commonly used in:
- Air compressor systems and monitoring
- Filter/regulator assemblies (piggyback gauges)
- Water pump pressure control
- Paint sprayer systems
- General pneumatic system pressure verification
- Hydraulic system monitoring
Compatibility & Replacements
Compatible With
- Standard 1/8″ NPT pneumatic fittings and ports
- ASCO/Numatics regulators and FRL units
- Pneumatic compressors with 1/8″ NPT ports
- Hydraulic and pneumatic system manifolds
- Filter/regulator assemblies requiring back-mount gauges
Replaces / Drop-In Replacement For
- Older Numatics F+R 100 units
- ASCO gauge models with matching 1/8″ back-fitting specifications
- Verify compatibility with your system integrator before ordering
Works With
- Manual pneumatic system operation and monitoring
- Compatible with any compressed air or hydraulic system using 1/8″ NPT connections
- Standard pneumatic control circuits and assembly lines
- No electronic interfaces required—purely mechanical dial gauge




