Overview
The WIKA 611.10 9851810 is a precision low-pressure capsule gauge engineered for applications requiring accurate measurement of very low pressures in controlled environments. Built to EN 837-3 design standards, this gauge delivers reliable performance in medical, environmental, laboratory, and process monitoring applications where precise pressure readings are critical.
Key Features
- Capsule element design optimized for low-pressure measurement and sensitivity
- Dual scale: 0–100 inches H₂O and 0–2500 mm H₂O
- 2.5″ (63 mm) dial with white aluminum face and black lettering
- Copper alloy (brass) wetted parts for non-aggressive media compatibility
- Black-painted steel case with clear plastic protective window
- 1/4″ NPT lower (bottom stem) connection for easy installation
- Front-face zero adjustment for field calibration
- ±1.6% of full scale value accuracy
Technical Specifications
- Pressure Range: 0–100 inches H₂O (0–2500 mm H₂O)
- Accuracy: ±1.6% FSV (Full Scale Value)
- Dial Size: 2.5″ (63 mm)
- Connection: 1/4″ NPT male, lower mount
- Wetted Parts: Copper alloy
- Case Material: Black-painted steel (NEMA 2)
- Sealing: NBR (nitrile rubber)
- Operating Temperature: −10°C to +60°C (14°F to 140°F)
- Design Standard: EN 837-3
- Pointer: Black aluminum
Typical Applications
- Medical gas systems and respiratory monitoring
- Environmental chamber pressure monitoring
- Laboratory process measurements
- Filter and content level monitoring
- HVAC vacuum and low-pressure measurement
- Compressed air quality verification
Compatibility & Replacements
Compatible With
- Systems requiring low-pressure measurement in dry, non-aggressive gaseous media
- Medical and laboratory instrumentation networks
- Environmental monitoring systems
- Industrial pneumatic and vacuum applications
Replaces / Drop-In Replacement For
- WIKA 611.10 models with equivalent 2.5″ dial and 0–100 InH2O range
- Other low-pressure gauges with 1/4″ NPT lower connection and matching pressure range
Works With
- Standard 1/4″ NPT male threaded process connections
- Panel and wall-mount fittings compatible with 2.5″ gauge bezels
- All WIKA accessories for 611.10 series gauges




