
3025 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $74.99 | Condition is New, NEW IN BOX DWYER 3025C PHOTOHELIC PRESSURE SWITCH/GAGE USA , shipping cost = $18.40 | 100.0% |
![]() | $94.75 | Top Pick! Condition is New, Dwyer A3025 Photohelic Pressure Switch 0-25in-h2o 120v-ac, FREE SHIPPING | ![]() |
![]() | $79.99 | Condition is New, DWYER 3025 SERIES 3000 PHOTOHELIC PRESSURE SWITCH GAGE-ONTARIO, CALIF, shipping cost = $20.00 | 100.0% |
![]() | $85.95 | Condition is New, DWYER 3025C PHOTOHELIC PRESSURE SWITCH GAUGE 117V 10A 30 TO 120F, shipping cost = $27.00 | 99.5% |
![]() | $130.00 | Top Pick! Condition is New, DWYER SERIES 3000 PHOTOHELIC PRESSURE SWITCH GAGE MODEL: 3025, shipping cost = $10.60 | 100.0% |
![]() | $145.00 | Condition is New, NEW! DWYER 3025 Photohelic Pressure Switch/Gauge WARRANTY FAST SHIPPING!, shipping cost = $14.50 | 100.0% |
![]() | $170.99 | Condition is New, DWYER 3025 SERIES 3000 0-80 PSIG PHOTOHELIC PRESSURE SWITCH/GAUGE *UB, FREE SHIPPING | 99.8% |
![]() | $245.00 | Condition is New, DWYER PHOTOHELIC PRESSURE SWITCH A3025 SERIES 3000, shipping cost = $36.85 | 99.8% |
![]() | $707.99 | Condition is New, Dwyer Instruments A3025 Pressure Switch/Gage, Range 0-25" W.C., FREE SHIPPING | ![]() |
![]() | $794.20 | Top Pick! Condition is New, DWYER A3025 Pressure Gauge,0 to 25 In H2O 4ME82, FREE SHIPPING | ![]() |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $50.00 | Condition is New – Open box, DWYER SERIES 3000 PHOTOHELIC PRESSURE SWITCH GAGE MODEL: 3025, shipping cost = $17.45 | 100.0% |
![]() | $80.00 | Condition is New – Open box, DWYER 3025C PHOTOHELIC PRESSURE SWITCH / GAGE 25 PSIG NEW CONDITION IN BOX, FREE SHIPPING | 100.0% |
![]() | $83.50 | Condition is New – Open box, Dwyer 3025 Photohelic Pressure Switch 0-25in-h2o 120v-ac, FREE SHIPPING | ![]() |
![]() | $83.50 | Top Pick! Condition is New – Open box, Dwyer A3025 Photohelic Pressure Switch 0-25in-h2o 120v-ac, FREE SHIPPING | ![]() |
![]() | $119.98 | Top Pick! Condition is New – Open box, DWYER A3025 PHOTOHELIC PRESSURE SWITCH 0-25 IN. WATER, shipping cost = $16.99 | 99.9% |
![]() | $150.00 | Condition is New – Open box, Dwyer 3025 Photohelic Pressure Gauge Switch, 0-25" wc Water, 120VAC, 25psig Max, FREE SHIPPING | 99.9% |
![]() | $179.97 | Condition is New – Open box, NEW Dwyer A3025 Photohelic Pressure Switch/Gage *25 psig (1.7 bar)* *NO BOX!*, FREE SHIPPING | 99.9% |
![]() | $159.99 | Condition is New – Open box, Dwyer A3025 A3000 Photohelic Pressure Switch Gauge NEW 3-in-1 Hi/Lo Limit , shipping cost = $22.80 | 100.0% |
![]() | $194.99 | Top Pick! Condition is New – Open box, Dwyer 13-167392-00 Photohelic Pressure Switch/Gauge 0-25 H2O /120V 10A 50/60HZ, FREE SHIPPING | 99.9% |
![]() | $288.46 | Condition is New – Open box, Dwyer Photohelic Series A3000 A3025 Pressure Switch/Gauge, Range 0-25"WC A3025, FREE SHIPPING | 99.3% |
![]() | $340.00 | Condition is New – Open box, DWYER A3025-RMR PHOTOHELIC PRESSURE SWITCH/GAGE 25 PSIG 0-25 IN WC NEW IN BOX, FREE SHIPPING | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $77.75 | Condition is Open box, NEW DWYER 3025C PHOTOHELIC PRESSURE SWITCH GAGE 25PSIG 0-25", FREE SHIPPING | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $79.95 | Condition is Used, DWYER SERIES 3000 PHOTOHELIC PRESSURE SWITCH GAGE MODEL: 3010 (37), FREE SHIPPING | 99.2% |

The Dwyer Instruments Model 3025 3000 Photohelic Pressure Switch is an innovative pressure switch designed for a wide range of applications. This versatile instrument is ideal for use in process control systems, HVAC applications, and other industrial settings where accurate pressure measurement is essential.
The heart of this pressure switch is its photohelic sensing element. This advanced technology utilizes a diaphragm that is exposed to the process fluid on one side and a light source on the other. When the process pressure causes the diaphragm to deflect, it alters the position of a light-sensitive element, which in turn activates the switch. This design ensures reliable and accurate pressure switch operation, even in harsh environments.
The Model 3025 3000 comes with a robust 1-1/16 inches (28 mm) diameter gauge, which provides clear and easy-to-read pressure indications. The gauge features a full-scale deflection of 75% and a high-contrast black-on-white scale. The large, easy-to-read numbers make it simple to monitor the process pressure at a glance.
This pressure switch is built to last, with a rugged stainless steel housing that is resistant to corrosion and wear. The switch has a temperature range of -40 F to 257 F (-40 C to 125 C) and can handle pressures up to 3000 psi (207 bar). The switch is also ATEX and IECEx certified for use in hazardous locations, making it a perfect choice for applications in the oil and gas industry, as well as other potentially explosive environments.
The Model 3025 3000 comes with a variety of output options, including normally open (NO) and normally closed (NC) contacts, as well as a relay option. This flexibility makes it easy to integrate into various control systems and automation applications.
The Dwyer Instruments Model 3025 3000 Photohelic Pressure Switch is a high-performance, versatile instrument that delivers reliable and accurate pressure measurement in even the most demanding environments. Its robust design, advanced sensing technology, and flexible output options make it an essential tool for process control, HVAC, and industrial applications.
The Dwyer Model 3025 3000 Photohelic Pressure Switch Gauge is a pneumatic pressure switching device that operates using photoelectric sensing technology. This device is designed to switch on or off an application when the pressure in the system reaches a preset level. Here are some pros and cons of buying this pressure switch gauge:
Pros:1. Accurate and reliable: The use of photoelectric sensing technology ensures precise pressure sensing and quick response time.
2. Versatile: The Dwyer 3025 3000 can be used in a wide range of applications, including compressed air, hydraulic systems, and process control.
3. Easy installation: The device comes with a clear installation manual and requires minimal wiring and configuration.
4. Adjustable: The pressure setting can be easily adjusted using the knob on the front of the device.
5. Durable: The pressure switch gauge is constructed of high-quality materials and is designed to withstand harsh industrial environments.
Cons:1. Limited pressure range: The Dwyer 3025 3000 is only suitable for applications with a pressure range of 0-30 psi.
2. Requires a clean environment: The photoelectric sensor can be affected by dirt, dust, and moisture, so the device needs to be installed in a clean environment.
3. No display: The pressure switch gauge does not have a display, so it is not possible to monitor the current pressure level without activating the application.
In conclusion, the Dwyer Model 3025 3000 Photohelic Pressure Switch Gauge is a reliable and accurate pressure switching device that is easy to install and versatile. However, it has a limited pressure range and requires a clean environment for optimal performance. If the pressure range and environmental conditions of your application match those of the Dwyer 3025 3000, then this device is an excellent choice for your needs. Otherwise, you may want to consider other pressure switch gauges with a wider pressure range or different sensing technologies.
Recommendation: If you have an application with a pressure range of 0-30 psi and a clean environment, the Dwyer Model 3025 3000 Photohelic Pressure Switch Gauge is an excellent choice for precise and reliable pressure switching.
Details:
With a switch fuse type, this product provides reliable and accurate pressure measurement for various systems. The Dwyer brand is well-known for producing durable and precise equipment, making the 3025 model a dependable choice those in need of pressure switch gage their business or industrial setting. The Dwyer series 3000 photohelic pressure switch gage model 3025 is a high-quality pressure switch designed for industrial applications.
specifications indusswitch:
- brand: Dwyer
- mpn: 3025
- part type: Pressure Switch
- operation method: On/off
- current type: Ac
- number in pack: 2-5
- fuse type: Switch
- number of circuits: 1-10
- switch style: Combination
- suitable for: Interior
- country of origin: United States
general indusswitch:
- category: Business & Industrial > Electrical Equipment Supplies > Pressure Switches
offer indusswitch:
- availability: in stock
- started: february 20, 2026
- prices: $50.00–$794.20
- item condition:
- New
- New – Open box
- Open box
- Used
- in stock #: 5
- best offers: true
- sold #: 6
- options: ship-to-home
shipping indusswitch:
- type: calculated
- transit: 5-11 days
- carrier: usps
- service: usps ground advantage
- class: standard
returns indusswitch:
- policy: no returns
seller indusswitch:
- city: vevay, indiana
- # reviews: 57
- rating: 100.0%
payments indusswitch:
- wallet: paypal
- credit card: mastercard
- other
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