



OBS-GO Pressure Gauge
The OBS-GO Series Pressure Gauge is the industry’s most accurate pressure gauge on the market. With a Thermoplastic Polypropylene enclosure, OBS-GO Series gauges were engineered to last in the most corrosive environments.
A ¼” NPT 316SS connection comes standard on all OBS-GO Pressure Gauges. This connection allows for them to be a perfect mate with our GI Series Gauge Guards when dealing with extremely corrosive chemicals. Gauge guards are utilized to protect the pressure gauge from any corrosive media in the process system via an isolator.
OBS-GO Pressure Gauges come factory pre-filled, which is one of the main reasons we were able to achieve that industry leading accuracy of 0.75%. Each OBS-GO Pressure Gauge is also equipped with Color Range Tabs. These 3 movable red, yellow and green range tabs are designed to act as a visual pressure alert for bag or filter change-outs.
- High Accuracy 0.75%
- Factory Pre-Filled
- Visual Pressure Range Tabs Red | Yellow | Green
- Simple to Install
- Perfect Mate for Plastic GI Series Gauge Guards
- Chemicals | Acids | Bases
- Process Pressure
- Strainer Clean-Out Notification
- Filter Bag Replacement Notification
- Pressure Leak Detection




OBS-DGO Double Sided Pressure Gauge
The OBS-DGO Series Pressure Gauge is double-sided and the industry’s most accurate pressure gauge on the market. With a Thermoplastic Polypropylene enclosure, OBS-DGO Series gauges were engineered to last in the most corrosive environments.
A ¼” NPT 316SS connection comes standard on all OBS-DGO Pressure Gauges. This connection allows for them to be a perfect mate with our GI Series Gauge Guards when dealing with extremely corrosive chemicals. Gauge guards are utilized to protect the pressure gauge from any corrosive media in the process system via an isolator.
OBS-DGO Pressure Gauges come factory pre-filled, which is one of the main reasons we were able to achieve that industry leading accuracy of 0.75%. Each OBS-DGO Pressure Gauge is also equipped with Color Range Tabs. These 3 movable red, yellow and green range tabs are designed to act as a visual pressure alert for bag or filter change-outs.
- Double Sided
- 2 1/2″ Display
- Extra Large Colored Display
- Accuracy 0.75%
- No Filling Required
- Visual Pressure Range Tabs Red | Yellow | Green
- Chemicals | Acids | Bases
- Process Pressure
- Strainer Clean-Out Notification
- Filter Bag Replacement Notification
- Pressure Leak Detection





OBS-GO4 Pressure Gauge
The OBS-GO4 Series Pressure Gauge features an extra large color display is the industry’s most accurate pressure gauge on the market. With a Thermoplastic Polypropylene enclosure, OBS-GO4 Series gauges were engineered to last in the most corrosive environments.
A ¼” NPT 316SS connection comes standard on all OBS-GO4 Pressure Gauges. This connection allows for them to be a perfect mate with our GI Series Gauge Guards when dealing with extremely corrosive chemicals. Gauge guards are utilized to protect the pressure gauge from any corrosive media in the process system via an isolator.
OBS-GO4 Pressure Gauges come factory pre-filled, which is one of the main reasons we were able to achieve that industry leading accuracy of 0.75%. Each OBS-GO4 Pressure Gauge is also equipped with Color Range Tabs. These 3 movable red, yellow and green range tabs are designed to act as a visual pressure alert for bag or filter change-outs.
- 4 ½” All Plastic Plastic Gauge
- 1/4″ NPT Connection
- FRP Body Corrosion Resistant
- Large Pointer- Designed to Provide clear indication of Pressure
- Extra Large Yellow Color Display
- 0-60 0-100 0-160 psi – Standard Pressure Ranges
- Accuracy ±0.5%
- Factory Pre-filled / Glycerin or Dry Extra-Large Numbers
- Heavy Duty Industrial Design
- 316 SS Internals




OBS-V Vacuum Pressure Gauge
The OBS-V Series Vacuum Pressure Gauge is the industry’s most accurate pressure gauge on the market designed for corrosive environments. With a Thermoplastic Polypropylene enclosure, OBS-V Series gauges were engineered to last in the most corrosive environments.
A ¼” NPT 316SS connection comes standard on all OBS-V Pressure Gauges. This connection allows for them to be a perfect mate with our GI Series Gauge Guards when dealing with extremely corrosive chemicals. Gauge guards are utilized to protect the pressure gauge from any corrosive media in the process system via an isolator.
OBS-V Pressure Gauges come factory pre-filled, which is one of the main reasons we were able to achieve that industry leading accuracy of 0.75%. Each OBS-V Pressure Gauge is also equipped with Color Range Tabs. These 3 movable red, yellow and green range tabs are designed to act as a visual pressure alert for bag or filter change-outs.
- Suitable for Corrosive Environments
- Large 2½”
- -30 – +30 psi Range
- 3 Range Tabs | Red | Yellow | Green
- High Accuracy | ±0.75 %
- Factory Pre-Filled
- High Impact Case Housing
- Chemicals | Acids | Bases
- Process Pressure
- Strainer Clean-Out Notification
- Filter Bag Replacement Notification
- Pressure Leak Detection




OBS-TT Pressure Gauge
The OBS-TT Series Plastic ‘Tell-Tale’ Pressure Gauge is the industry’s most accurate pressure gauge on the market featuring a red ‘Tell-Tale’ pointer. With a Thermoplastic Polypropylene enclosure, OBS-TT Series gauges were engineered to last in the most corrosive environments.
A ¼” NPT 316SS connection comes standard on all OBS-TT Pressure Gauges. This connection allows for them to be a perfect mate with our GI Series Gauge Guards when dealing with extremely corrosive chemicals. Gauge guards are utilized to protect the pressure gauge from any corrosive media in the process system via an isolator.
OBS-TT Pressure Gauges come factory pre-filled, which is one of the main reasons we were able to achieve that industry leading accuracy of 0.75%. Each OBS-GTTssure alert for bag or filter change-outs.
- Range Tabs – Red | Yellow | Green
- Pressure Spike | Surge Notification
- ±0.75% Accuracy
- Large 2 ½” Display
- Dual Scale
- Chemicals | Acids | Bases
- Process Pressure
- Strainer Clean-Out Notification
- Filter Bag Replacement Notification
- Pressure Leak Detection