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Level Control
Maintain safe and efficient operations with our reliable level control products. Designed to provide precise measurement, monitoring, and regulation of liquid or solid levels, these components help prevent overflow, p...
Categories in Level Control - Level Switches, Sensors & Transmitters (4)
Float Switches
Float switches detect liquid level with a buoyant float that rises and falls with the liquid. They control pumps, valves and alarms with simple, dependable operation.
Float Switch Types
- Cable floats – sumps and lift stations
- Vertical floats – compact tank mounting
- Side-mount floats – install through tank walls
- Multi-level floats – several set points on one stem
Choosing a Float Switch
Select float material for the liquid and temperature, and check electrical ratings against your load. Use relays for large pumps.
Nisco supplies float switches for tanks and sumps.
Related categories: Level Control | Level Switches | Level Transmitters | Level Sensors
Level SensorsEnsure precise measurement and reliable monitoring with our high-quality level sensors. Designed to detect and control the level of liquids, solids, or slurries, these sensors help improve efficiency, protect equipment, and maintain safe operation across a wide range of industries. Our selection includes capacitive, ultrasonic, float, radar, and optical level sensors, available in multiple sizes, materials, and mounting styles to meet your specific needs. Commonly used in water treatment, chemical processing, food and beverage, pharmaceuticals, and manufacturing, level sensors provide accurate, real-time data for better system control. Built with rugged designs and trusted-brand reliability, our level sensors deliver consistent performance, easy integration, and long service life—even in demanding environments.
Related categories: Level Control | Level Transmitters | Level Switches | Float Switches
Level Switches
Level switches detect when liquid or solids reach a set point, triggering alarms, pumps or valves. They're critical for overfill protection and dry-run prevention.
Level Switch Types
- Float switches – simple liquid detection
- Vibrating fork switches – liquids and solids, unaffected by foam
- Conductivity switches – conductive liquids
- Optical switches – compact point detection
- Rotary paddle switches – bulk solids
Choosing a Switch
Consider material, temperature, pressure, buildup and mounting. Use a separate high-level switch for safety.
Nisco supplies level switches.
Related categories: Level Control | Level Transmitters | Float Switches | Level Sensors
Level Transmitters
Level transmitters continuously measure the height of liquids or solids in tanks and silos and send a signal to your control system for inventory and process control.
Transmitter Technologies
- Radar – non-contact, unaffected by vapor
- Ultrasonic – economical non-contact
- Submersible hydrostatic – water and wastewater
- Guided wave radar – foam and interface
- Magnetostrictive – high-accuracy inventory
Choosing a Transmitter
Consider media, tank height, temperature, pressure and obstructions. Select output and approvals.
Nisco supplies level transmitters.
Related categories: Level Control | Level Sensors | Level Switches | Float Switches
Filters 352 Results
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The Dwyer - LVSW-701 is an Ultrasonic Level Switch featuring Solid State, Liquid, 1 A SPDT, 3/4 " NPT Male, 1000 psi, and 316 SS. It is rated for a temperature range of 71 °C (160 °F). Sold individually.
$346.90
Should ship between 22 Dec and 29 Dec
Subject to factory lead times
The Dwyer - LVN-10 is a Level Switch featuring Low Cost, Liquid, 50 VA SPST, 1/8 " NPT Male, 160 psi, 316 SS, Brass, and Buna. It is rated for a temperature range of 110 °C. Sold individually.
$95.20
Should ship between 19 Nov and 22 Nov
Subject to factory lead times
The Dwyer - LVN-60 is a Level Switch featuring Single-Station, Liquid, 50 VA SPST, 1/8 " NPT Male, 100 psi, and CPVC. It is rated for a temperature range of 82 °C. Part of the LVN-60 Series. Sold individually.
$68.78
Should ship between 19 Nov and 22 Nov
Subject to factory lead times
The Dwyer - LVSW-710 is an Ultrasonic Level Switch featuring Compact Solid State, Liquid, 1 A SPST, 1/4 " NPT Male, 250 psi, and 316 SS. It is rated for a temperature range of 80 °C. Sold individually.
$313.87
Should ship between 01 Dec and 08 Dec
Subject to factory lead times
The Dwyer - LVN-70 is a Level Switch featuring Single-Station, Liquid, 50 VA SPST, 1/8 " NPT Male, 100 psi, and PP. It is rated for a temperature range of 82 °C. Part of the LVN-60 Series. Sold individually.
$70.42
Should ship between 01 Dec and 08 Dec
Subject to factory lead times
The Dwyer - LV612-P is a Float Level Switch featuring Pump Up/Pump Down, Liquid, 15 A SPDT, Tethered, 75 psi, PP, and PVC. It is rated for a temperature range of 50 °C. Part of the LV600 Series. Sold individually.
$105.88
Should ship between 19 Nov and 22 Nov
Subject to factory lead times
The Dwyer - LVN-92 is a Level Switch featuring Side-Mounted, Liquid, 50 VA SPST, 1/2 " NPT Male, 100 psi, and PP. It is rated for a temperature range of 82 °C. Part of the LVN-90 Series. Sold individually.
$68.72
Should ship between 01 Dec and 08 Dec
Subject to factory lead times
The Dwyer - LV622-P is a Float Level Switch featuring Pump Up/Pump Down, Liquid, 15 A SPDT, Tethered, 75 psi, PP, PVC, 15' L Cable, and Circular Design. It is rated for a temperature range of 50 °C. Part of the LV600 Series. Sold individually.
$117.97
Should ship between 19 Nov and 22 Nov
Subject to factory lead times
The Dwyer - LVN-90 is a Level Switch featuring Side-Mounted, Liquid, 50 VA SPST, 1/2 " NPT Male, 100 psi, and CPVC. It is rated for a temperature range of 82 °C. Part of the LVN-90 Series. Sold individually.
$58.62
Should ship between 01 Dec and 08 Dec
Subject to factory lead times
The Dwyer - LVN-93 is a Level Switch featuring Side-Mounted, Liquid, 50 VA SPST, 1/2 " NPT Male, 500 psi, and 316 SS. It is rated for a temperature range of 149 °C. Part of the LVN-90 Series. Sold individually.
$236.82
Should ship between 01 Dec and 08 Dec
Subject to factory lead times
The Dwyer - LV613-P is a Float Level Switch featuring Pump Up/Pump Down, Liquid, 15 A SPDT, Tethered, 75 psi, PP, PVC, 45' L Cable, and Rectangular Design. It is rated for a temperature range of 50 °C. Part of the LV600 Series. Sold individually.
$159.27
Should ship between 19 Nov and 22 Nov
Subject to factory lead times
The Dwyer - LVCN414-I is an Ultrasonic Level Controller for Small Tank featuring Non-Contact, 1 " NPT Male, ± 0.125 ", 30 psi, 1.2 m (4 '), PVDF & FKM, 12 Vdc to 24 Vdc, 4 mA to 20 mA, and USB Programmer. It is rated for a temperature range of 60 °C. Part of the LVCN414 Series. Sold individually.
$624.33
Should ship between 22 Dec and 29 Dec
Subject to factory lead times
The Dwyer - LVSW-720 is an Ultrasonic Level Switch featuring Compact Solid State, Liquid, 1 A SPST, 1/2 " NPT Male, 250 psi, and 316 SS. It is rated for a temperature range of 80 °C. Sold individually.
$311.93
Should ship between 24 Nov and 01 Dec
Subject to factory lead times
The Dwyer - LVN-20 is a Level Switch featuring Low Cost, Liquid, 50 VA SPST, 1/4 " NPT Male, 225 psi, 316 SS, Brass, and Buna. It is rated for a temperature range of 110 °C. Sold individually.
$93.13
Should ship between 24 Nov and 01 Dec
Subject to factory lead times
The Dwyer - LV622-N is a Float Level Switch featuring Pump Up/Pump Down, Liquid, 15 A SPDT, Tethered, 75 psi, PP, Neoprene, 15' L Cable, and Circular Design. It is rated for a temperature range of 50 °C. Part of the LV600 Series. Sold individually.
$148.60
Should ship between 19 Nov and 22 Nov
Subject to factory lead times
The Dwyer - LVD-803 is a Level Switch featuring Rotary Paddle, Fail-Safe, Dry Material, Solids, 5 A SPDT, 1-1/4 " NPT Male, 115 Vac, 30 psi, and 304 SS. It is rated for a temperature range of 65 °C. Part of the LVD-800 Series. Sold individually.
$625.01
Should ship between 01 Dec and 08 Dec
Subject to factory lead times
The Dwyer - LVU-150-R is an Ultrasonic Level Sensor featuring Liquid, 1 A SPST, 3x 3/4 " NPT Male, 150 psi, and PP. It is rated for a temperature range of 90 °C. Part of the LVU-150-R Series. Sold individually.
$523.82
Should ship between 22 Dec and 29 Dec
Subject to factory lead times
The Dwyer - LVV-110 is a Vertical Buoyancy Sensor featuring Liquid, 15 VA SPST, 3/4 " NPT Male, 25 psi, and PP. It is rated for a temperature range of 90 °C. Part of the LVV-110 Series. Sold individually.
$202.38
Should ship between 22 Dec and 29 Dec
Subject to factory lead times
The Dwyer - LTUR-3022 is a Tuning Fork Point Level Switch featuring Liquid, 5 A SPDT, 1 " NPT Male, 20 Vac/Vdc to 250 Vac/Vdc, 600 psi, 316 SS, and 4 " L Probe. It is rated for a temperature range of 130 °C. Part of the LTU-2000 Series. Sold individually.
$625.97
Should ship between 15 Dec and 22 Dec
Subject to factory lead times
The Dwyer - LTUR-2011 is a Tuning Fork Point Level Switch featuring Liquid, 5 A SPDT, 3/4 " NPT Male, 20 Vdc to 60 Vdc, 20 Vac to 264 Vac, 725 psi, 316 SS, 3-1/8 " L Probe, and Nylon Enclosure. It is rated for a temperature range of 80 °C. Part of the LTU-2000 Series. Sold individually.
$797.85
Should ship between 01 Dec and 08 Dec
Subject to factory lead times
The Dwyer - LVC-152-R is a Capacitance Level Switch featuring Economical, Liquid, 1 A SPST, 3/4 " NPT Male, 12 Vdc to 30 Vdc, 150 psi, PP, and 2.6 " L Probe. It is rated for a temperature range of 90 °C. Sold individually.
$429.07
Should ship between 22 Dec and 29 Dec
Subject to factory lead times
The Dwyer - LV-1201 is a Level Switch featuring Non-Magnetic, Liquid, 15 A SPDT, 1-1/4 " NPT Male, 200 psi, 316 SS, EPDM, and Noryl. It is rated for a temperature range of 10 °C. Part of the LV-1200 Series. Sold individually.
$197.94
Should ship between 19 Nov and 22 Nov
Subject to factory lead times
The Dwyer - LVU-152-R is an Ultrasonic Level Sensor featuring Liquid, 1 A SPST, 4.5x 3/4 " NPT Male, 150 psi, and PP. It is rated for a temperature range of 90 °C. Part of the LVU-150-R Series. Sold individually.
$511.81
Should ship between 22 Dec and 29 Dec
Subject to factory lead times
The Dwyer - LVCN414 is an Ultrasonic Level Controller for Small Tank featuring Non-Contact, 1 " NPT Male, ± 0.125 ", 30 psi, 1.2 m, PVDF & FKM, 12 Vdc to 24 Vdc, 4 mA to 20 mA, and USB Programmer & 4x SPST. It is rated for a temperature range of 60 °C. Part of the LVCN414 Series. Sold individually.
$690.17
Should ship between 22 Dec and 29 Dec
Subject to factory lead times
The Dwyer - LVSW-701 is an Ultrasonic Level Switch featuring Solid State, Liquid, 1 A SPDT, 3/4 " NPT Male, 1000 psi, and 316 SS. It is rated for a temperature range of 71 °C (160 °F). Sold individually.
$346.90
Should ship between 22 Dec and 29 Dec
Subject to factory lead times
The Dwyer - LVN-10 is a Level Switch featuring Low Cost, Liquid, 50 VA SPST, 1/8 " NPT Male, 160 psi, 316 SS, Brass, and Buna. It is rated for a temperature range of 110 °C. Sold individually.
$95.20
Should ship between 19 Nov and 22 Nov
Subject to factory lead times
The Dwyer - LVN-60 is a Level Switch featuring Single-Station, Liquid, 50 VA SPST, 1/8 " NPT Male, 100 psi, and CPVC. It is rated for a temperature range of 82 °C. Part of the LVN-60 Series. Sold individually.
$68.78
Should ship between 19 Nov and 22 Nov
Subject to factory lead times
The Dwyer - LVSW-710 is an Ultrasonic Level Switch featuring Compact Solid State, Liquid, 1 A SPST, 1/4 " NPT Male, 250 psi, and 316 SS. It is rated for a temperature range of 80 °C. Sold individually.
$313.87
Should ship between 01 Dec and 08 Dec
Subject to factory lead times
The Dwyer - LVN-70 is a Level Switch featuring Single-Station, Liquid, 50 VA SPST, 1/8 " NPT Male, 100 psi, and PP. It is rated for a temperature range of 82 °C. Part of the LVN-60 Series. Sold individually.
$70.42
Should ship between 01 Dec and 08 Dec
Subject to factory lead times
The Dwyer - LV612-P is a Float Level Switch featuring Pump Up/Pump Down, Liquid, 15 A SPDT, Tethered, 75 psi, PP, and PVC. It is rated for a temperature range of 50 °C. Part of the LV600 Series. Sold individually.
$105.88
Should ship between 19 Nov and 22 Nov
Subject to factory lead times
The Dwyer - LVN-92 is a Level Switch featuring Side-Mounted, Liquid, 50 VA SPST, 1/2 " NPT Male, 100 psi, and PP. It is rated for a temperature range of 82 °C. Part of the LVN-90 Series. Sold individually.
$68.72
Should ship between 01 Dec and 08 Dec
Subject to factory lead times
The Dwyer - LV622-P is a Float Level Switch featuring Pump Up/Pump Down, Liquid, 15 A SPDT, Tethered, 75 psi, PP, PVC, 15' L Cable, and Circular Design. It is rated for a temperature range of 50 °C. Part of the LV600 Series. Sold individually.
$117.97
Should ship between 19 Nov and 22 Nov
Subject to factory lead times
The Dwyer - LVN-90 is a Level Switch featuring Side-Mounted, Liquid, 50 VA SPST, 1/2 " NPT Male, 100 psi, and CPVC. It is rated for a temperature range of 82 °C. Part of the LVN-90 Series. Sold individually.
$58.62
Should ship between 01 Dec and 08 Dec
Subject to factory lead times
The Dwyer - LVN-93 is a Level Switch featuring Side-Mounted, Liquid, 50 VA SPST, 1/2 " NPT Male, 500 psi, and 316 SS. It is rated for a temperature range of 149 °C. Part of the LVN-90 Series. Sold individually.
$236.82
Should ship between 01 Dec and 08 Dec
Subject to factory lead times
The Dwyer - LV613-P is a Float Level Switch featuring Pump Up/Pump Down, Liquid, 15 A SPDT, Tethered, 75 psi, PP, PVC, 45' L Cable, and Rectangular Design. It is rated for a temperature range of 50 °C. Part of the LV600 Series. Sold individually.
$159.27
Should ship between 19 Nov and 22 Nov
Subject to factory lead times
The Dwyer - LVCN414-I is an Ultrasonic Level Controller for Small Tank featuring Non-Contact, 1 " NPT Male, ± 0.125 ", 30 psi, 1.2 m (4 '), PVDF & FKM, 12 Vdc to 24 Vdc, 4 mA to 20 mA, and USB Programmer. It is rated for a temperature range of 60 °C. Part of the LVCN414 Series. Sold individually.
$624.33
Should ship between 22 Dec and 29 Dec
Subject to factory lead times
The Dwyer - LVSW-720 is an Ultrasonic Level Switch featuring Compact Solid State, Liquid, 1 A SPST, 1/2 " NPT Male, 250 psi, and 316 SS. It is rated for a temperature range of 80 °C. Sold individually.
$311.93
Should ship between 24 Nov and 01 Dec
Subject to factory lead times
The Dwyer - LVN-20 is a Level Switch featuring Low Cost, Liquid, 50 VA SPST, 1/4 " NPT Male, 225 psi, 316 SS, Brass, and Buna. It is rated for a temperature range of 110 °C. Sold individually.
$93.13
Should ship between 24 Nov and 01 Dec
Subject to factory lead times
The Dwyer - LV622-N is a Float Level Switch featuring Pump Up/Pump Down, Liquid, 15 A SPDT, Tethered, 75 psi, PP, Neoprene, 15' L Cable, and Circular Design. It is rated for a temperature range of 50 °C. Part of the LV600 Series. Sold individually.
$148.60
Should ship between 19 Nov and 22 Nov
Subject to factory lead times
The Dwyer - LVD-803 is a Level Switch featuring Rotary Paddle, Fail-Safe, Dry Material, Solids, 5 A SPDT, 1-1/4 " NPT Male, 115 Vac, 30 psi, and 304 SS. It is rated for a temperature range of 65 °C. Part of the LVD-800 Series. Sold individually.
$625.01
Should ship between 01 Dec and 08 Dec
Subject to factory lead times
The Dwyer - LVU-150-R is an Ultrasonic Level Sensor featuring Liquid, 1 A SPST, 3x 3/4 " NPT Male, 150 psi, and PP. It is rated for a temperature range of 90 °C. Part of the LVU-150-R Series. Sold individually.
$523.82
Should ship between 22 Dec and 29 Dec
Subject to factory lead times
The Dwyer - LVV-110 is a Vertical Buoyancy Sensor featuring Liquid, 15 VA SPST, 3/4 " NPT Male, 25 psi, and PP. It is rated for a temperature range of 90 °C. Part of the LVV-110 Series. Sold individually.
$202.38
Should ship between 22 Dec and 29 Dec
Subject to factory lead times
The Dwyer - LTUR-3022 is a Tuning Fork Point Level Switch featuring Liquid, 5 A SPDT, 1 " NPT Male, 20 Vac/Vdc to 250 Vac/Vdc, 600 psi, 316 SS, and 4 " L Probe. It is rated for a temperature range of 130 °C. Part of the LTU-2000 Series. Sold individually.
$625.97
Should ship between 15 Dec and 22 Dec
Subject to factory lead times
The Dwyer - LTUR-2011 is a Tuning Fork Point Level Switch featuring Liquid, 5 A SPDT, 3/4 " NPT Male, 20 Vdc to 60 Vdc, 20 Vac to 264 Vac, 725 psi, 316 SS, 3-1/8 " L Probe, and Nylon Enclosure. It is rated for a temperature range of 80 °C. Part of the LTU-2000 Series. Sold individually.
$797.85
Should ship between 01 Dec and 08 Dec
Subject to factory lead times
The Dwyer - LVC-152-R is a Capacitance Level Switch featuring Economical, Liquid, 1 A SPST, 3/4 " NPT Male, 12 Vdc to 30 Vdc, 150 psi, PP, and 2.6 " L Probe. It is rated for a temperature range of 90 °C. Sold individually.
$429.07
Should ship between 22 Dec and 29 Dec
Subject to factory lead times
The Dwyer - LV-1201 is a Level Switch featuring Non-Magnetic, Liquid, 15 A SPDT, 1-1/4 " NPT Male, 200 psi, 316 SS, EPDM, and Noryl. It is rated for a temperature range of 10 °C. Part of the LV-1200 Series. Sold individually.
$197.94
Should ship between 19 Nov and 22 Nov
Subject to factory lead times
The Dwyer - LVU-152-R is an Ultrasonic Level Sensor featuring Liquid, 1 A SPST, 4.5x 3/4 " NPT Male, 150 psi, and PP. It is rated for a temperature range of 90 °C. Part of the LVU-150-R Series. Sold individually.
$511.81
Should ship between 22 Dec and 29 Dec
Subject to factory lead times
The Dwyer - LVCN414 is an Ultrasonic Level Controller for Small Tank featuring Non-Contact, 1 " NPT Male, ± 0.125 ", 30 psi, 1.2 m, PVDF & FKM, 12 Vdc to 24 Vdc, 4 mA to 20 mA, and USB Programmer & 4x SPST. It is rated for a temperature range of 60 °C. Part of the LVCN414 Series. Sold individually.
$690.17
Should ship between 22 Dec and 29 Dec
Subject to factory lead times
FAQ
- Two ways to slice it. By what they tell you: switches give point-level on/off, transmitters give continuous level, sight glasses give visual indication. By how they measure: float, displacer, capacitance, conductive, ultrasonic, radar (pulse and guided wave), differential pressure, and laser. Plus all the accessories - mounting hardware, displays, alarms, and intrinsically safe barriers for hazardous areas.
- Switches give you point-level detection (high alarm, low alarm, pump start, pump stop). One or two switches per tank, no continuous reading. Transmitters give you a continuous 4-20 mA or digital signal that tells you the level at every height, all the time. Use switches when you only need alarms and on/off pump control. Use a transmitter when you need to see actual level, calculate volume, or feed level into a control loop.
- Driven by the fluid (clean water, oil, slurry, foam, hot, corrosive), the vessel (tank, sump, silo, open channel), the range needed, and the accuracy required. Radar for almost everything liquid. Guided wave radar for foam, vapor, and small vessels. Ultrasonic for clean water and dry bulk. DP transmitters for closed pressurized tanks. Capacitance for sticky or coating fluids. Float for cheap on/off detection. Match technology to process - there's no universal winner.
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About NISCO Inc.
NISCO offers a wide range of pressure gauges & instruments, diaphragm seals, thermometers, valves, and flow control products to the industrial and commercial marketplaces, as well as other resellers like ourselves. We can also provide other value-added services such as gauge repair, NIST traceable calibration, diaphragm seal assembly, and valve automation. NISCO takes pride in providing extensive product knowledge, helpful customer service, and market competitive pricing to help fit whatever need you may have because it is our goal to be regarded by our customers as the best supplier of pressure, temperature, and flow control products.