Dwyer Level Switches

Dwyer level switches are widely known for providing simple, durable, and reliable level measurements for liquids in industrial systems, process tanks, and sophisticated equipment all over the world. They are level-measuring devices you can control and depend on. There is a good reason why so many professionals and organizations trust the basic level measurement actuation and "on/off" control provided by Dwyer float-style switches.

Level-measuring devices must first and foremost be able to perform under the conditions they face. In industrial settings, we are usually dealing with conditions that are well-defined, controlled, and consistent across a certain range of temperature, pressure, and liquid type (e.g., water, oil, or some other chemical). Switches must also tolerate, if not thrive, in the presence of certain common harsh conditions: corrosive materials, vapors, and liquids; high-pressure air; vibration; and temperature changes that can be pretty extreme in some contexts.

Dwyer level switches incorporate very simple wiring, standard connections, and versatile mounting to accommodate both new and existing installations. They can be used with great ease and great flexibility in a number of ways. For instance, they can be wired to integrate directly with the basic elements of a system, such as pumps and alarms, for a range of plumbing layouts that convey fluids. They can likewise work with PLCs and building management systems to incorporate level control and protection in fluid-handling systems throughout a facility.

Found 183 items
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Found 183 items
Manufacturer
Dwyer Instruments (183)
Component
Chamber Type Level Control (1)
Flange Switch (1)
Float Switch (29)
FLOTECT® Level Switch (5)
Level Switch (125)
Liquid Level Switch (2)
Ultra-Mag™ Explosion-Proof Level Switch (18)
Vibrating Rod Level Switch. (1)
Water Level Control (1)
(Instrument-Sensor) Application
Bulk Solids (50)
Dry Powder (37)
Liquid (70)
Powder (12)
Water (29)
(Instrument-Sensor) Contact Configuration
1-Normally Closed (12)
1-Normally Open (12)
1-Normally Open Or Closed (5)
(Instrument-Sensor) Hazardous Location Class
Class I - Groups A-D (31)
Class I - Groups C And D (10)
Class II - Groups E-G (41)
(Instrument-Sensor) Indication
High Level-Alarm (17)
Low Level-Alarm (17)
(Instrument-Sensor) IP Protection
IP56 (1)
IP66 (19)
IP68 (4)
(Instrument-Sensor) NEMA Protection
NEMA 4 (9)
NEMA 4X (18)
(Instrument-Sensor) Span
33' (16)
67' (13)
(Instrument-Sensor) Supply Voltage
10-28 VDC (3)
12 VDC (21)
24 VAC (21)
24 VDC (16)
48 VAC (21)
90-265 VAC (7)
110-120 VAC (21)
115 VAC (9)
120 VAC (1)
125 VAC (29)
(Instrument-Sensor) Temperature Range
-4 - 257°F/-20 - 125°C (32)
14 - 176°F/-10 - 80°C (32)
32 - 122°F/0 - 50°C (4)
120°F/48.9°C (3)
122 F (29)
200°F/93°C (10)
212°F/100°C (1)
Ambient: -4 - 140°F/-20 - 60°C (16)
Ambient: -4 - 167°F/-20 - 75°C (20)
Ambient: -40 - 185°F/-40 - 85°C (22)
(Instrument-Sensor) Type
1 Switch Level (29)
Cable Suspended (29)
Capacitance (1)
Dual Point (1)
Explosion-Proof (12)
Free-Floating (4)
Horizontal/Specialty (20)
Liquid (20)
Mini-Size (10)
Optical (3)
Normally In Stock
Dwyer Mercoid CFS2-CNBPN-20 Mechanical Float Switch
Free U.S Ground shipping
$68.18
$56.82
Normally In Stock
Dwyer Mercoid FSW2-CNPN-20 Mechanical Float Switch
Free U.S Ground shipping
$159.47
$132.89
Normally In Stock
Dwyer Mercoid FSW2-DNPN-20 Mechanical Float Switch
Free U.S Ground shipping
$159.47
$132.89
Normally In Stock
Dwyer Mercoid FSW2-DNPN-30 Mechanical Float Switch
Free U.S Ground shipping
$180.01
$150.01
Normally In Stock
Dwyer Mercoid FSW2-DNPN-40 Mechanical Float Switch
Free U.S Ground shipping
$200.54
$167.12
Normally In Stock
Dwyer Mercoid CFS2-ONBPN-20 Mechanical Float Switch
Free U.S Ground shipping
$68.18
$56.82
Normally In Stock
Dwyer Mercoid FSW2-ONPN-30 Mechanical Float Switch
Free U.S Ground shipping
$180.01
$150.01
Normally In Stock
Dwyer Mercoid FSW2-ONPN-40 Mechanical Float Switch
Free U.S Ground shipping
$200.54
$167.12
Normally In Stock
Dwyer Mercoid CFS2-OGDSN-20 Mechanical Float Switch
Free U.S Ground shipping
$102.77
$85.64
Normally In Stock
Dwyer Mercoid FSW2-CNPN-40 Mechanical Float Switch
Free U.S Ground shipping
$200.54
$167.12
Normally In Stock
Dwyer Mercoid FSW2-DNPN-10 Mechanical Float Switch
Free U.S Ground shipping
$138.95
$115.79
Normally In Stock
Dwyer Mercoid CFS2-ONBPN-50 Mechanical Float Switch
Free U.S Ground shipping
$129.78
$108.15
Normally In Stock
Dwyer Mercoid FSW2-CNPN-50 Mechanical Float Switch
Free U.S Ground shipping
$221.08
$184.23
Normally In Stock
Dwyer Mercoid FSW2-CNPN-30 Mechanical Float Switch
Free U.S Ground shipping
$180.01
$150.01
Normally In Stock
Dwyer Mercoid CFS2-OGDSN-30 Mechanical Float Switch
Free U.S Ground shipping
$141.22
$117.68
Normally In Stock
Dwyer Mercoid FSW2-ONPN-50 Mechanical Float Switch
Free U.S Ground shipping
$221.08
$184.23
Normally In Stock
Dwyer L6EPB-B-D-3-A Flotect® Liquid Level Switch
Free U.S Ground shipping
$550.30
$458.58
Normally In Stock
Dwyer Mercoid CFS2-CNBPN-30 Mechanical Float Switch
Free U.S Ground shipping
$88.72
$73.93
Normally In Stock
Dwyer Mercoid CFS2-CNBPN-40 Mechanical Float Switch
Free U.S Ground shipping
$109.25
$91.04
Normally In Stock
Dwyer Mercoid CFS2-OGDSN-40 Mechanical Float Switch
Free U.S Ground shipping
$179.64
$149.70
Normally In Stock
Dwyer Mercoid CFS2-OGDSN-50 Mechanical Float Switch
Free U.S Ground shipping
$218.09
$181.74
Normally In Stock
Dwyer Mercoid CFS2-CGDSN-20 Mechanical Float Switch
Free U.S Ground shipping
$102.77
$85.64
Normally In Stock
Dwyer Mercoid CFS2-CGDSN-30 Mechanical Float Switch
Free U.S Ground shipping
$141.22
$117.68
Normally In Stock
Dwyer OLS-11 Optitrol® Optical Level Switch
Free U.S Ground shipping
$128.16
$106.80
Normally In Stock
Dwyer Mercoid FSW2-DNPN-15 Mechanical Float Switch
Free U.S Ground shipping
$149.22
$124.35
Normally In Stock
Dwyer OLS-12 Optitrol® Optical Level Switch
Free U.S Ground shipping
$282.79
$235.66
Normally In Stock
Dwyer 126-009 Ultra-Mag™ Explosion-Proof Level Switch
Free U.S Ground shipping
$158.48
$132.07
Normally In Stock
Dwyer 126-010 Ultra-Mag™ Explosion-Proof Level Switch
Free U.S Ground shipping
$158.48
$132.07
Normally In Stock
Dwyer 126-011 Ultra-Mag™ Explosion-Proof Level Switch
Free U.S Ground shipping
$158.48
$132.07
Normally In Stock
Dwyer 126-012 Ultra-Mag™ Explosion-Proof Level Switch
Free U.S Ground shipping
$158.48
$132.07
Normally In Stock
Dwyer 126-013 Ultra-Mag™ Explosion-Proof Level Switch
Free U.S Ground shipping
$158.48
$132.07
Normally In Stock
Dwyer 126-014 Ultra-Mag™ Explosion-Proof Level Switch
Free U.S Ground shipping
$158.48
$132.07
Normally In Stock
Dwyer 126-015 Ultra-Mag™ Explosion-Proof Level Switch
Free U.S Ground shipping
$158.48
$132.07
Normally In Stock
Dwyer 126-016 Ultra-Mag™ Explosion-Proof Level Switch
Free U.S Ground shipping
$158.48
$132.07
Normally In Stock
Dwyer 126-017 Ultra-Mag™ Explosion-Proof Level Switch
Free U.S Ground shipping
$158.48
$132.07
Normally In Stock
Dwyer 126-018 Ultra-Mag™ Explosion-Proof Level Switch
Free U.S Ground shipping
$158.48
$132.07
Normally In Stock
Dwyer 126-019 Ultra-Mag™ Explosion-Proof Level Switch
Free U.S Ground shipping
$158.48
$132.07
Normally In Stock
Dwyer 126-021 Ultra-Mag™ Explosion-Proof Level Switch
Free U.S Ground shipping
$158.48
$132.07
Normally In Stock
Dwyer GFD4BA Ultra-Mag™ Explosion-proof Level Switch
Free U.S Ground shipping
$641.28
$534.40
Normally In Stock
Dwyer GFD5AA Ultra-Mag™ Explosion-proof Level Switch
Free U.S Ground shipping
$641.28
$534.40
Normally In Stock
Dwyer GFD7AA Ultra-Mag™ Explosion-proof Level Switch
Free U.S Ground shipping
$641.28
$534.40
Normally In Stock
Dwyer GSD4BA Ultra-Mag™ Explosion-proof Level Switch
Free U.S Ground shipping
$641.28
$534.40
Normally In Stock
Dwyer GSD4BT Ultra-Mag™ Explosion-proof Level Switch
Free U.S Ground shipping
$689.88
$574.90
Normally In Stock
Dwyer GSD5AA Ultra-Mag™ Explosion-proof Level Switch
Free U.S Ground shipping
$641.28
$534.40
Normally In Stock
Dwyer GSD5AT Ultra-Mag™ Explosion-proof Level Switch
Free U.S Ground shipping
$689.88
$574.90
Normally In Stock
Dwyer GSD7AA Ultra-Mag™ Explosion-proof Level Switch
Free U.S Ground shipping
$641.28
$534.40
Normally In Stock
Dwyer GSD7AT Ultra-Mag™ Explosion-proof Level Switch
Free U.S Ground shipping
$689.88
$574.90
Normally In Stock
Dwyer EXGFD3DA ULTRA-MAG™ EXPLOSION-PROOF LEVEL SWITCHES
Free U.S Ground shipping
$754.37
$628.64

FAQs

Q: What are Dwyer level switches used for?
Dwyer level switches monitor liquid levels in tanks, sumps, and process systems to control pumps, trigger alarms, and support automated fluid-handling equipment.

Q: What types of level switches does Dwyer offer?
Dwyer manufactures float, ultrasonic, capacitance, optical, and solid-state level switches to accommodate a wide range of liquids and operating environments.

Q: Can Dwyer level switches be used with chemicals or corrosive liquids?
Yes. Certain Dwyer level switch models are designed with materials suitable for chemical compatibility and are commonly used in industrial and wastewater applications.

Q: Are Dwyer level switches compatible with PLCs and control systems?
Yes. Dwyer level switches provide standard electrical outputs that integrate easily with PLCs, pump relays, control panels, and automation systems.

Q: Can Dwyer level switches be used in clean-water applications?
Yes. They are frequently used in potable water systems, HVAC tanks, and general-purpose liquid-level monitoring applications.

Why Buy Dwyer Level Switches from RSP Supply

RSP Supply offers a dependable selection of Dwyer level switches designed for accurate and reliable liquid-level control. Our catalog includes multiple sensing technologies and configurations to support industrial, wastewater, and commercial applications. Customers rely on RSP Supply for trusted manufacturers, clear technical specifications, and level monitoring solutions built for professional system operation.