Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

MIDWEST INSTRUMENT Series 120 Differential Pressure Gauge with Switch - Medium & High Operating Pressure Differential Gauges with Switch
MIDWEST INSTRUMENTMedium & High Operating Pressure Differential Gauges with Switch

MIDWEST INSTRUMENT Series 120 Differential Pressure Gauge with Switch

The MIDWEST INSTRUMENT Differential Pressure Gauge & Switch: Back is a medium and high operating pressure differential gauge with switch from the Series 120. It features a piston sensor type, a 2 1/2 in dial, and a…

SKU 3G-OTH-174587

Also listed as: 120SA00OCA50P · 120 SA 00 O CA 50P · 120-SA-00-O-CA-50P

Brand
MIDWEST INSTRUMENT
Item
Series 120 Differential Pressure Gauge with Switch
Category
Medium & High Operating Pressure Differential Gauges with Switch
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

MIDWEST INSTRUMENT
Manufacturer Part Number
120-SA-00-O(CA)-50P
Series
120
Type
120, 2 1/2 in Dial (MPN 120-SA-00-O(CA)-50P)
NPT Female
1/4 in
Sensor Type
Piston
Gauge Accuracy
±3-2-3%
Housing Material
316L Stainless Steel
Certificate of Calibration
Not Included

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

MIDWEST INSTRUMENT Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The MIDWEST INSTRUMENT Differential Pressure Gauge & Switch: Back is a medium and high operating pressure differential gauge with switch from the Series 120. It features a piston sensor type, a 2 1/2 in dial, and a 1/4 in NPT Female connection, with a gauge accuracy of ±3-2-3% and a housing made of 316L Stainless Steel. This model (MPN 120-SA-00-O(CA)-50P) does not include a certificate of calibration.

Frequently Asked Questions

What is the MIDWEST INSTRUMENT 120-SA-00-O(CA)-50P differential pressure gauge and switch used for?

This instrument is used to measure and control differential pressure in medium and high operating pressure systems. It is suitable for industrial applications such as filtration monitoring, pump protection, and flow measurement where a piston sensor and a 2 1/2 in dial are required.

What are the specifications of the MIDWEST INSTRUMENT 120-SA-00-O(CA)-50P?

The Series 120 gauge has a piston sensor, 1/4 in NPT Female connection, 2 1/2 in dial, and gauge accuracy of ±3-2-3%. The housing is 316L Stainless Steel. It does not include a certificate of calibration. The manufacturer part number is 120-SA-00-O(CA)-50P.

Where to buy the MIDWEST INSTRUMENT 120-SA-00-O(CA)-50P worldwide?

You can source the MIDWEST INSTRUMENT 120-SA-00-O(CA)-50P through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.

How to select a differential pressure gauge and switch for medium pressure systems?

Select a gauge with a piston sensor for viscous fluids, a 316L Stainless Steel housing for corrosion resistance, and a dial size readable at your installation distance. Ensure the connection size (e.g., 1/4 in NPT Female) matches your piping. Verify accuracy requirements; the MIDWEST INSTRUMENT Series 120 offers ±3-2-3%.

Used in

Common applications for MIDWEST INSTRUMENT
Filter monitoring in industrial water treatment — MIDWEST INSTRUMENT 522 series 3-color differential pressure indicators
Flow measurement in chemical processing — MIDWEST INSTRUMENT Series 120 piston-type differential pressure gauges
Liquid level indication in oil and gas storage tanks — MIDWEST INSTRUMENT Model 142 diaphragm-type differential pressure gauges
HVAC system filter condition monitoring — MIDWEST INSTRUMENT Series 130 differential pressure gauges with glass-reinforced plastic housing
Pump differential pressure monitoring in industrial plants — MIDWEST INSTRUMENT 522 series indicators with switch for alarm output

MIDWEST INSTRUMENT Products

3G Electric supplies MIDWEST INSTRUMENT medium & high operating pressure differential gauges with switch. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
Medium and high operating pressure differential gauge with switch from the Series 120. Features a piston sensor, 2 1/2 in dial, 1/4 in NPT Female connection, and ±3-2-3% accuracy. Housing is 316L stainless steel. Certificate of calibration not included. Used for monitoring differential pressure in industrial systems such as filtration, pump protection, and flow measurement
MIDWEST INSTRUMENT
Medium and high operating pressure differential gauge with switch from the Series 120. Features a piston sensor, 2 1/2 in dial, 1/4 in NPT Female connection, and ±3-2-3% accuracy. Housing is 316L stainless steel. Certificate of calibration not included. Used for monitoring differential pressure in industrial systems such as filtration, pump protection, and flow measurement
Piston-type differential pressure gauge with integrated switch for medium to high operating pressure systems. Features a 2-1/2 in dial, 1/4 in NPT female connection, and 316L stainless steel housing. Accuracy is ±3-2-3% of span. Suitable for monitoring and controlling differential pressure in filtration, pump, and flow applications
MIDWEST INSTRUMENT
Piston-type differential pressure gauge with integrated switch for medium to high operating pressure systems. Features a 2-1/2 in dial, 1/4 in NPT female connection, and 316L stainless steel housing. Accuracy is ±3-2-3% of span. Suitable for monitoring and controlling differential pressure in filtration, pump, and flow applications
Medium and high operating pressure differential gauge with switch, featuring a piston sensor and 2 1/2 in dial. Housing is 316L stainless steel with 1/4 in NPT female connection. Gauge accuracy is ±3-2-3%. Suitable for monitoring differential pressure in industrial processes such as filtration and pump protection
MIDWEST INSTRUMENT
Medium and high operating pressure differential gauge with switch, featuring a piston sensor and 2 1/2 in dial. Housing is 316L stainless steel with 1/4 in NPT female connection. Gauge accuracy is ±3-2-3%. Suitable for monitoring differential pressure in industrial processes such as filtration and pump protection
Piston-type differential pressure gauge with integrated switch for medium and high operating pressure systems. Features a 2 1/2 in dial, 1/4 in NPT female connection, and 316L stainless steel housing. Accuracy is ±3-2-3%. Suitable for monitoring and controlling differential pressure in filtration, pump, and flow applications
MIDWEST INSTRUMENT
Piston-type differential pressure gauge with integrated switch for medium and high operating pressure systems. Features a 2 1/2 in dial, 1/4 in NPT female connection, and 316L stainless steel housing. Accuracy is ±3-2-3%. Suitable for monitoring and controlling differential pressure in filtration, pump, and flow applications
This medium and high operating pressure differential gauge with switch features a piston sensor and a 2 1/2 in dial with ±3-2-3% accuracy. The 316L stainless steel housing and 1/4 in NPT female back connection suit industrial applications such as filtration monitoring, pump protection, and flow measurement. No certificate of calibration included
MIDWEST INSTRUMENT
This medium and high operating pressure differential gauge with switch features a piston sensor and a 2 1/2 in dial with ±3-2-3% accuracy. The 316L stainless steel housing and 1/4 in NPT female back connection suit industrial applications such as filtration monitoring, pump protection, and flow measurement. No certificate of calibration included
MIDWEST INSTRUMENT Differential Pressure Gauge & Switch: Back, 1/4 in NPT Female, 120, 2 1/2 in Dial (MPN 120-SA-00-O(CA)-5P)
MIDWEST INSTRUMENT
MIDWEST INSTRUMENT Differential Pressure Gauge & Switch: Back, 1/4 in NPT Female, 120, 2 1/2 in Dial (MPN 120-SA-00-O(CA)-5P)

More from MIDWEST INSTRUMENT

View all MIDWEST INSTRUMENT parts
This Series 120 differential pressure gauge with switch monitors and controls differential pressure in medium to high operating pressure systems. It features a 2 1/2 in dial, 1/4 in NPT female back connection, aluminum housing, and piston sensor with ±3-2-3% accuracy. Suitable for filtration, pump, and HVAC applications
MIDWEST INSTRUMENT
This Series 120 differential pressure gauge with switch monitors and controls differential pressure in medium to high operating pressure systems. It features a 2 1/2 in dial, 1/4 in NPT female back connection, aluminum housing, and piston sensor with ±3-2-3% accuracy. Suitable for filtration, pump, and HVAC applications
This medium and high operating pressure differential gauge with switch from the Series 120 features a 2 1/2 in dial and 1/4 in NPT female connection. The piston sensor and 316 stainless steel housing support use in filtration, flow measurement, and pump monitoring applications. Gauge accuracy is ±3-2-3%. Certificate of calibration not included
MIDWEST INSTRUMENT
This medium and high operating pressure differential gauge with switch from the Series 120 features a 2 1/2 in dial and 1/4 in NPT female connection. The piston sensor and 316 stainless steel housing support use in filtration, flow measurement, and pump monitoring applications. Gauge accuracy is ±3-2-3%. Certificate of calibration not included
This differential pressure gauge with switch from the Series 120 is designed for medium and high operating pressure applications. It features a 2 1/2 in dial, 1/4 in NPT female connections, a piston sensor, and an aluminum housing. Gauge accuracy is ±3-2-3%. Suitable for monitoring pressure differences in filtration, flow measurement, and pump systems
MIDWEST INSTRUMENT
This differential pressure gauge with switch from the Series 120 is designed for medium and high operating pressure applications. It features a 2 1/2 in dial, 1/4 in NPT female connections, a piston sensor, and an aluminum housing. Gauge accuracy is ±3-2-3%. Suitable for monitoring pressure differences in filtration, flow measurement, and pump systems
This differential pressure gauge with switch from the Series 120 features a 2 1/2 in dial, 1/4 in NPT female back connection, and a piston sensor. The aluminum housing and ±3-2-3% accuracy make it suitable for monitoring and controlling differential pressure in medium to high operating pressure systems such as filtration, pump monitoring, and process control. Certificate of calibration not included
MIDWEST INSTRUMENT
This differential pressure gauge with switch from the Series 120 features a 2 1/2 in dial, 1/4 in NPT female back connection, and a piston sensor. The aluminum housing and ±3-2-3% accuracy make it suitable for monitoring and controlling differential pressure in medium to high operating pressure systems such as filtration, pump monitoring, and process control. Certificate of calibration not included
This differential pressure gauge with switch is designed for medium to high operating pressure systems. It features a 2 1/2 in dial, 1/4 in NPT female back connections, a piston sensor, and an aluminum housing. Gauge accuracy is ±3-2-3%. Certificate of calibration is not included. Typical applications include industrial filtration, pump monitoring, and HVAC systems
MIDWEST INSTRUMENT
This differential pressure gauge with switch is designed for medium to high operating pressure systems. It features a 2 1/2 in dial, 1/4 in NPT female back connections, a piston sensor, and an aluminum housing. Gauge accuracy is ±3-2-3%. Certificate of calibration is not included. Typical applications include industrial filtration, pump monitoring, and HVAC systems
Differential pressure gauge with switch for monitoring and controlling pressure in medium to high operating pressure systems. Features a 2 1/2 in dial, 1/4 in NPT female connection, diaphragm sensor, and ±3-2-3% accuracy. Housing is 316 stainless steel. Suitable for industrial filtration, pump monitoring, and HVAC applications
MIDWEST INSTRUMENT
Differential pressure gauge with switch for monitoring and controlling pressure in medium to high operating pressure systems. Features a 2 1/2 in dial, 1/4 in NPT female connection, diaphragm sensor, and ±3-2-3% accuracy. Housing is 316 stainless steel. Suitable for industrial filtration, pump monitoring, and HVAC applications
This Series 240 differential pressure gauge with switch is designed for medium and high operating pressure applications. It features a diaphragm sensor, 316 stainless steel housing, and 1/4 in NPT female connection. The gauge accuracy is ±3-2-3% and the enclosure is rated IP65 4X. Typical uses include monitoring and controlling differential pressure in filtration, flow measurement, and pump systems
MIDWEST INSTRUMENT
This Series 240 differential pressure gauge with switch is designed for medium and high operating pressure applications. It features a diaphragm sensor, 316 stainless steel housing, and 1/4 in NPT female connection. The gauge accuracy is ±3-2-3% and the enclosure is rated IP65 4X. Typical uses include monitoring and controlling differential pressure in filtration, flow measurement, and pump systems
Medium and high operating pressure differential gauge with switch from the Series 142. Features a diaphragm sensor, aluminum housing, and 2 1/2 in dial with ±3-2-3% accuracy. 1/4 in NPT Female back connection. Used for monitoring and switching on differential pressure in HVAC, filtration, pump, and process control systems
MIDWEST INSTRUMENT
Medium and high operating pressure differential gauge with switch from the Series 142. Features a diaphragm sensor, aluminum housing, and 2 1/2 in dial with ±3-2-3% accuracy. 1/4 in NPT Female back connection. Used for monitoring and switching on differential pressure in HVAC, filtration, pump, and process control systems