The Gauge House has partnered with Perma-Cal to deliver to you their line of high quality gauges that is suited for any job you many need. Contact one of our sales representative today to learn how we can get the gauges in your hands and put to work on your next job.


A Brand You Can Trust
- Process Gauges
- Precision Test Gauges
- Caisson Gauges
- Pneumo Depth Gauges
- Gauges on a welded Diaphragm Seals
- Ray Series High Visibility Gauges


Process Gauges
TYPICAL APPLICATIONS
Ideal for use on any application, especially those experiencing vibration, pulsation and shock.
-
Industrial, Energy & Power Plants
-
Wastewater Treatment Facilities
-
Pump Applications
-
Welding Gas Filling Stations
-
Steam Pipes
-
Oil & Gas Pipelines
-
Chemical Plants
-
Manufacturing Facilities
-
Refineries, and more…
ACCURACY
-
±0.5% of F.S. (Grade 2A)
-
±0.5% F.S. at M.S. / ±1.0% F.S.
For details see accuracy specs page
RANGE AVAILABILITY
-
Vacuum – 15,000 psi (or equivalent)
-
Units: psi, bar, kPa, MPa, kg/cm², inHg, mmHg
-
Types: Single or Dual Scale, Vacuum and Compound
Customization available (range, units, logo, etc.)
See dial availability chart for list of standard ranges
OPERATING TEMPERATURE
Media Temperature:
-
ABS: -65°F to 250°F
-
GFN and Metal: -65°F to 600°F
Ambient Temperature:
-
ABS: -65°F to 190°F
-
GFN and Metal: -65°F to 400°F
OTHER SPECIFICATIONS
Burst Pressure: 500% F.S. pressure or 25,000 psi
Proof Pressure (over-pressure w/o calibration shift):
-
150% of F.S. for gauges ≤ 5,000 psi or equivalent
-
125% of F.S. for gauges > 5,000 psi or equivalent
Internal pointer dampening (reduces pointer flutter)
CASE CONFIGURATIONS
Materials:
-
ABS (acrylonitrile butadiene styrene)
-
Aluminum
-
Stainless Steel
-
GFN (glass-filled nylon): High-Temp Yellow Turret
Sizes, Types and Colors:
-
2.5″, 3.5″, 4.5″, 6″, 8.5″ Dial
-
Front Flange, No Flange, Rear Flange, Turret Style
-
Black, Blue, Green, Red, White, Yellow (others available)
Metal Case Finish: Powder Coated or Unpainted
Solid Front Case Design
QUALITY MATERIALS
Wetted Parts:
-
Inconel X-750
-
300-series SS
-
Silver Braze (nickel braze available)
Connection Material:
-
316 SS standard (Monel available)
-
Mini Diaphragm Seal
Window Construction:
-
Acrylic
-
Tempered Glass (increases heat tolerance)
Dial Construction:
-
Stainless Steel Material, Powder Coated Finish
-
White Background, Black Markings, Black Pointer

Precision Test Gauges
TYPICAL APPLICATIONS
Ideal for use on any application where accuracy and reliability are paramount.
-
Industrial, Energy & Power Plants
-
Mobile Testing Setups
-
Hydraulics Testing Facilities
-
Fluid Control Manufacturing Facilities
-
Welding Gas Filling Stations
-
Oil & Gas Pipelines
-
Chemical Plants
-
Refineries, and more…
ACCURACY
-
±0.25% of F.S. (Grade 3A)
For details see accuracy specs page
RANGE AVAILABILITY
-
Vacuum – 15,000 psi (or equivalent)
-
Units: psi, bar, kPa, MPa, kg/cm², inHg, mmHg
-
Types: Single or Dual Scale, Vacuum and Compound
Customization available (range, units, logo, etc.)
See dial availability chart for list of standard ranges
OPERATING TEMPERATURE
Media Temperature:
-
ABS: -65°F to 250°F
-
GFN and Metal: -65°F to 600°F
Ambient Temperature:
-
ABS: -65°F to 190°F
-
GFN and Metal: -65°F to 400°F
OTHER SPECIFICATIONS
Burst Pressure: 500% F.S. pressure or 25,000 psi
Proof Pressure (over-pressure w/o calibration shift):
-
150% of F.S. for gauges ≤ 5,000 psi or equivalent
-
125% of F.S. for gauges > 5,000 psi or equivalent
Internal pointer dampening (reduces pointer flutter)
CASE CONFIGURATIONS
Materials:
-
ABS (acrylonitrile butadiene styrene)
-
Aluminum
-
Stainless Steel
-
GFN (glass-filled nylon): High-Temp Yellow Turret
Sizes, Types and Colors:
-
2.5″, 3.5″, 4.5″, 6″, 8.5″ Dial
-
Front Flange, No Flange, Rear Flange, Turret Style
-
Black, Blue, Green, Red, White, Yellow (others available)
Metal Case Finish: Powder Coated or Unpainted
Solid Front Case Design
QUALITY MATERIALS
Wetted Parts:
-
Inconel X-750
-
300-series SS
-
Silver Braze (nickel braze available)
Connection Material: 316 SS standard (Monel available)
Window Construction:
-
Acrylic
-
Tempered Glass (increases heat tolerance)
Dial Construction:
-
Stainless Steel Material, Powder Coated Finish
-
White Background, Black Markings, Black Pointer

Caisson Gauges
IDEAL FOR USE IN HYPERBARIC CHAMBERS
TYPICAL APPLICATIONS
Perma-Cal® caisson gauges incorporate a Helical Bourdon Tube sealed within a capsule.
Unlike standard pressure gauges which indicate the pressure relative to the ambient environment, Caisson Gauges indicate the pressure relative to the pressure within the capsule.
-
Hyperbaric chambers
-
Decompression chambers and more…
ACCURACY
-
±0.25% of F.S. (Grade 3A)
For details see accuracy specs page
RANGE AVAILABLITY
-
250 to 3,500 FSW (or equivalent)
-
Single Scale: FSW
-
Dual Scale: MSW | FSW
Customization available (range, units, logo, etc.)
See dial availability chart for list of standard ranges
OPERATING TEMPERATURE
Media Temperature: -65°F to 250°F
Ambient Temperature: -65°F to 190°F
OTHER SPECIFICATIONS
Cleaned for oxygen use
Burst Pressure: 500% F.S. pressure or 25,000 psi
Proof Pressure (over-pressure w/o calibration shift):
-
150% of F.S. pressure
CASE CONFIGURATIONS
Materials: ABS (acrylonitrile butadiene styrene)
Sizes, Types and Colors:
-
6″, 8.5″ Dial
-
Front Flange, No Flange, Rear Flange
-
Black, Blue, Green, Red, White, Yellow
Solid Front Case Design
QUALITY MATERIALS
Wetted Parts:
-
Inconel X-750
-
300-series SS
-
Silver Braze
Connection Material: 316 Stainless Steel
Window Construction:
-
Acrylic
-
Tempered Glass available
Dial Construction:
-
Stainless Steel Material, Powder Coated Finish
-
White Background, Black Markings, Black Pointer

Pneumo Depth Gauges
TYPICAL APPLICATIONS
Ideal for use wherever accurate sea water depth measurement is required.
-
Commercial Diving
-
Submarines
-
Sea exploration equipment
-
Air control systems
-
Diving vessels and more…
ACCURACY
-
±0.25% of F.S. (Grade 3A)
For details see accuracy specs page
RANGE AVAILABLITY
-
70 to 3,500 FSW (or equivalent)
-
Single Scale: FSW
-
Dual Scale: MSW | FSW
Customization available (range, units, logo, etc.)
See dial availability chart for list of standard ranges
OPERATING TEMPERATURE
Media Temperature:
-
ABS: -65°F to 250°F
-
SS: -65°F to 600°F
Ambient Temperature:
-
ABS: -65°F to 190°F
-
SS: -65°F to 400°F
OTHER SPECIFICATIONS
Burst Pressure: 500% F.S. pressure or 25,000 psi
Proof Pressure (over-pressure w/o calibration shift):
-
150% of F.S. pressure
Internal pointer dampening (reduces pointer flutter)
CASE CONFIGURATIONS
Materials:
-
ABS (acrylonitrile butadiene styrene)
-
Stainless Steel
Sizes, Types and Colors:
-
4.5″, 6″, 8.5″ Dial
-
Front Flange, No Flange, Rear Flange, Turret Style
-
Black, Blue, Green, Red, White, Yellow
SS Case Finish: Powder Coated or Unpainted
Solid Front Case Design
QUALITY MATERIALS
Wetted Parts:
-
Inconel X-750
-
300-series SS
-
Silver Braze
Connection Material: 316 Stainless Steel
Window Construction:
-
Acrylic
-
Tempered Glass available
Dial Construction:
-
Stainless Steel Material, Powder Coated Finish
-
White Background, Black Markings, Black Pointer

Gauges on Welded Diaphragm Seals
TYPICAL APPLICATIONS
Ideal for use on processes which are corrosive, viscous, unrefined or unfiltered.
Prevents media from clogging the Bourdon tube.
-
Chemical Plants
-
Wastewater Treatment Facilities
-
Sanitary Environments (food and beverage)
-
Crude Oil Pipelines
-
Ethanol Production Facilities
-
Refineries, and more…
ACCURACY
-
±0.5% of F.S. (Grade 2A)
-
±0.5% F.S. at M.S. / ±1.0% F.S.
Accuracy Ref. @ 68°F, ±2°F
Diaphragm seals installed on gauges below 100 psi may experience loss of accuracy at low pressures.
RANGE AVAILABILITY
-
Vacuum – 1,000 psi (or equivalent)
-
Units: psi, bar, kPa, kg/cm² (others available)
-
Types: Single or Dual Scale, Vacuum and Compound
Customization available (range, units, logo, etc.)
See dial availability chart for list of standard ranges
CASE CONFIGURATIONS
Material:
-
ABS (acrylonitrile butadiene styrene)
-
Aluminum
-
Stainless Steel
-
GFN (glass-filled nylon): High-Temp Yellow Turret
Sizes, Types and Colors:
-
2.5″, 3.5″, 4.5″ Dial
-
No Flange, Rear Flange, Turret
-
Black, Blue, Green, Red, White, Yellow (others available)
Metal Case Finish: Powder Coated or Unpainted
Solid Front Case Design
OTHER SPECIFICATIONS
Window Construction:
-
Acrylic
-
Tempered Glass (increases heat tolerance)
Dial Construction:
-
Stainless Steel Material, Powder Coated Finish
-
White Background, Black Markings, Black Pointer
See Ray Series for high visibility dial
Proof Pressure (over-pressure w/o calibration shift):
-
150% of F.S. pressure
Internal pointer dampening (reduces pointer flutter)
DIAPHRAGM SEAL SPECS
Material (wetted parts):
-
Stainless Steel 316L
-
Hastelloy C-276
Seals containing 316L wetted parts comply with NACE MR0175 & MR0103 process temperatures at or below 140°F.
Connection Type:
-
1/4 or 1/2 FNPT
-
1/4 or 1/2 MNPT
-
Bottom mount only
Burst Pressure: 10,000 psi
Max Working Pressure: 2,000 psi
Other options available. Contact the factory.
OPERATING TEMPERATURE
Media Temperature: -40°F to 650°F
Ambient Temperature:
-
ABS: -40°F to 190°F
-
GFN and Metal: -40°F to 400°F
Case, Diaphragm Seal, and Fill Fluid selection determines operating temperature range.
FILL FLUIDS
Standard Fill:
-
Silicone DC200 (or equivalent)
-
Operating Temp: -40°F to 400°F
Inert Fill:
-
Halocarbon 6.3 (similar to Fluorolube but suitable for vacuum service)
-
Operating Temp: -40°F to 400°F
High-Temp Fill:
-
Silicone DC704 (or equivalent)
-
Operating Temp: 0°F to 650°F
Max 200°F in vacuum service for all fills. Click here for more information on vacuum service.
Other options available. Contact the factory.

Ray Series High Visibility Gauges
IMPROVED VISIBILITY IN LOW LIGHT
Neon Dial + Red Pointer = High Contrast
High contrast features improve readability in any environment, especially those in low light areas.
TYPICAL APPLICATIONS
Ideal for use in areas where improved visibility is required and a process gauge is being used, especially those experiencing vibration, pulsation and shock.
-
Industrial, Energy & Power Plants
-
Wastewater Treatment Facilities
-
Pump Applications
-
Welding Gas Filling Stations
-
Steam Pipes
-
Oil & Gas Pipelines
-
Chemical Plants
-
Manufacturing Facilities
-
Refineries, and more…
ACCURACY
-
±0.5% of F.S. (Grade 2A)
-
±0.5% F.S. at M.S. / ±1.0% F.S.
For details see accuracy specs page
RANGE AVAILABILITY
-
Vacuum – 15,000 psi
-
Units: psi only
-
Types: Single Scale, Vacuum and Compound
Customization available (range, units, logo, etc.)
See dial availability chart for list of ranges
OPERATING TEMPERATURE
Media Temperature:
-
ABS: -65°F to 250°F
-
GFN and Metal: -65°F to 600°F
Ambient Temperature:
-
ABS: -65°F to 190°F
-
GFN and Metal: -65°F to 400°F
CASE CONFIGURATIONS
Materials:
-
ABS (acrylonitrile butadiene styrene)
-
Aluminum
-
Stainless Steel
-
GFN (glass-filled nylon): High-Temp Yellow Turret
Sizes, Types and Colors:
-
4.5″ Dial Standard
-
Front Flange, No Flange, Rear Flange, Turret Style
-
Black, Blue, Green, Red, White, Yellow
Metal Case Finish: Powder Coated or Unpainted
Solid Front Case Design
Other options available (size, color, etc.) Contact sales.
QUALITY MATERIALS
Wetted Parts:
-
Inconel X-750
-
300-series SS
-
Silver Braze (nickel braze available)
Connection Material:
-
316 SS standard (Monel available)
Window Construction:
-
Acrylic
-
Tempered Glass (increases heat tolerance)
Dial Construction:
-
Stainless Steel Material , Powder Coated Finish
-
Neon Background, Black Markings, Red Pointer
OTHER SPECIFICATIONS
Burst Pressure: 500% F.S. pressure or 25,000 psi
Proof Pressure (over-pressure w/o calibration shift):
-
150% of F.S. for gauges ≤ 5,000 psi or equivalent
-
125% of F.S. for gauges > 5,000 psi or equivalent
Internal pointer dampening (reduces pointer flutter)