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Dwyer Photohelic Switch: Back/Single-Side, 1/8 in NPT Female, ±2% Gauge Accuracy - Low Operating Pressure Differential Gauges
DwyerLow Operating Pressure Differential Gauges

Dwyer Photohelic Switch: Back/Single-Side, 1/8 in NPT Female, ±2% Gauge Accuracy

The Dwyer Photohelic Switch: Back/Single-Side is a low operating pressure differential gauge from the 3000MR Series, featuring a diaphragm sensor and a 4-inch dial. It offers a gauge accuracy of ±2% and connects via…

SKU 3G-OTH-174123

Brand
Dwyer
Item
Photohelic Switch: Back/Single-Side, 1/8 in NPT Female, ±2% Gauge Accuracy
Category
Low Operating Pressure Differential Gauges
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Technical Specifications

Dwyer
Manufacturer Part Number
3002MR
Series
3000MR
Type
±2% Gauge Accuracy, 3000MR
Dial
4 in
NPT Female
1/8 in
Sensor Type
Diaphragm
Gauge Accuracy
±2%
Certificate of Calibration
Not Included
View Full Spec Sheet

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

Product Description

The Dwyer Photohelic Switch: Back/Single-Side is a low operating pressure differential gauge from the 3000MR Series, featuring a diaphragm sensor and a 4-inch dial. It offers a gauge accuracy of ±2% and connects via a 1/8 in NPT Female port. This model, with manufacturer part number 3002MR, does not include a certificate of calibration.

Used in

Common applications for Dwyer
Combustion air-filter monitoring — Magnehelic Series 2000 on burner air-intake filter banks
Clean-room and pharmaceutical pressurisation — Magnehelic / Capsuhelic differential-pressure gauges
HVAC fan-discharge static pressure — Mark II inclined-vertical manometers on AHU test points
Filter-blockage alarms — Photohelic Series 3000 combined gauge/switch on air-handling units
BMS-integrated pressure monitoring — Digihelic DH3 with 4–20 mA output for building management

Dwyer Products

3G Electric supplies Dwyer low operating pressure differential gauges. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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