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  Our Catalog   Industrial Electrical   Sensors   Liquid Level Sensors

Liquid Level Sensors - 587 - Blowout Sale! Save up to 62%


Blowout Sale! Up to 62% off on Liquid Level Sensors at In The National Interest. Top brands include DerBlue, uxcell, Square D by Schneider Electric, Ametek BW Controls, Yosoo, Solinst, SMD Fluid Controls, FW Murphy, Madison, Warrick, Heron, Milton Industries, Federal Mogul, Gems Sensors, Flowline, & TouchSensor. Hurry! Limited time offers. Offers valid only while supplies last.



DerBlue 6 Pieces Side mounted Horizontal Liquid Float Switch Water Level Sensor
DerBlue 6 Pieces Side mounted Horizontal Liquid Float Switch Water Level Sensor
In Stock
$12.99

mpn: qweqrqwerqtqw, ean: 6601003176545,

The description of products:The plastic float switch of side mount duckbilled is a frequently opened, often closed, switching contact and with the overall brake, it's installed from the outside and doesn't need to be sealed.The Main parameters of pro...


uxcell 5 Pieces ZP4510 Liquid Water Level Sensor Vertical Float Switches
uxcell 5 Pieces ZP4510 Liquid Water Level Sensor Vertical Float Switches
In Stock
$8.26

mpn: a13082200ux0389,

SA float switch is a device used to sense the level of liquid within a tank. The switch may actuate a pump, an indicator, an alarm, or other device.It can be easily converted from normally open to normally close by inverting the float.Note: because t...


Square D 9038 Closed Tank Mechanical Alternator, Side Bushing Mount, NEMA 1, Left Float Position, 90-Deg. Float Rod Angle w/ 5'' Offset, Contacts Close on Rise, 2-Level Non-Alternating Unit
Square D 9038 Closed Tank Mechanical Alternator, Side Bushing Mount, NEMA 1, Left Float Position, 90-Deg. Float Rod Angle w/ 5" Offset, Contacts Close on Rise, 2-Level Non-Alternating Unit
In Stock
$636.16

mpn: 9038CG36N4, ean: 0094705694992,

This Square D 9038CG36N4 float-operated mechanical alternator for use with water, hydraulic oils, and corrosive fluids switches between two pumps or motors within a duplex system in one closed tank. It has a NEMA 1 enclosure for protection and contac...


B/W Controls Wire Suspension Electrode
B/W Controls Wire Suspension Electrode
In Stock
$27.00
$20.95
You Save: 22%

mpn: 6013-W2,

6013-W2 LARGE STNLS STEEL ELECTRODE W/SHIEL6013 Electrode Sensors. ...


Uxcell Tank Pool Wired Liquid Water Level Sensor Mini PP Float Switch 5 Pcs
Uxcell Tank Pool Wired Liquid Water Level Sensor Mini PP Float Switch 5 Pcs
In Stock
$13.33

mpn: a15120500ux0468, ean: 0602451292135,

A Float switch is a device used to sense the level of liquid within a tank. The switch may actuate a pump, an indicator, an alarm, or other device. Use them with hydroponics, saltwater tank, freshwater tank, gardening, aquariums for power head contro...


Aquarium Duckbill Side Mount Liquid Water Level Sensor Floating Float Switch Stainless Steel for Hydroponics Saltwater Freshwater Tank Gardening - 115mm 50W 220V
Aquarium Duckbill Side Mount Liquid Water Level Sensor Floating Float Switch Stainless Steel for Hydroponics Saltwater Freshwater Tank Gardening - 115mm 50W 220V
In Stock
$13.12
$12.99

mpn: yosoo-816-5,

Product Specification: Thread Dia(Approx): 20mm, 3/4"PT Thread Length: 15mm/0.59" Switch Total Length: 115mm/4.5" Cable Length: 38cm/15" 40cm/15.7" Screw Size: G1/2 DN15 1/4 Contract rating(Max): 10W Switching voltage(Max): 110VDC Switching current(...


SOLINST 101 P7 WATER LEVEL METER - 750 ft.
SOLINST 101 P7 WATER LEVEL METER - 750 ft.
In Stock
$1,375.00

mpn: solinst-101-p7-water-level-meter-750,

The Solinst 101 Water Level Meter with P7 Probe has a laser marked PVDF flat tape. The design is intended to reduce adherence to the side of well casing. The PVDF flat tape is laser marked every 1/100 ft or each mm and the tap has a length of up to 6...


FS31 Vertical Low Level A/C Pan Switch
FS31 Vertical Low Level A/C Pan Switch
In Stock
$15.00

mpn: FS31-1A1-010,

Low-voltage, condensate overflow shutoff switch is easily bracket-mounted in a liquid vessel to detect level changes as minute as ½", or in the top of a condensate pan for level detection. The high buoyancy Buna-N float has a large inner diameter to...


FW Murphy L150 Level Swichgage
FW Murphy L150 Level Swichgage
In Stock
$99.99
$91.20
You Save: 9%

mpn: L150,

FW Murphy L150 Series Level Swichgage combines a liquid level gauge and low-limit switch. Internally, the float operates the pointer which indicates level during normal operation and closes a switching circuit if the level falls to the low-limit set ...


Madison M3782 Brass/PBT Full-Size Liquid Level Float Switch with Slosh Shield, 30 VA SPST, 3.4 bar Pressure
Madison M3782 Brass/PBT Full-Size Liquid Level Float Switch with Slosh Shield, 30 VA SPST, 3.4 bar Pressure
In Stock
$103.99

mpn: M3782,

Liquid level switch has a brass stem and a Buna-N float and is equipped with a slosh shield. A slosh shield should be considered if your operating environment contains intensive agitation of the liquid, boiling fluids, or surging due to large inflows...


Warrick 3B1B 316 Stainless Steel Two-Piece Threaded Coupling with Single Electrode Probe, 3/8''-18 NPT Male
Warrick 3B1B 316 Stainless Steel Two-Piece Threaded Coupling with Single Electrode Probe, 3/8"-18 NPT Male
In Stock
$54.24

mpn: 3B1B,

Gems Warrick liquid level sensors are available in seven probe models. The versatility of the Warrick design makes these sensors ideal for a diverse range of applications. Its includes: Food and beverage, pharmaceuticals, caustics and acids, boilers ...


Warrick 3E2A Cast Iron Liquid Level Sensor with Two Probe, 2'' NPT Male
Warrick 3E2A Cast Iron Liquid Level Sensor with Two Probe, 2" NPT Male
In Stock
$181.00

mpn: 3E2A,

Gems Warrick liquid level sensors are available in two probe models. The versatility of the Warrick design makes these sensors ideal for a diverse range of applications. It includes food and beverage, pharmaceuticals, caustics and acids, boilers and ...


Heron 1148 LdDx75ft Little Dipper-Water Level Meter, 75'
Heron 1148 LdDx75ft Little Dipper-Water Level Meter, 75'
In Stock
$452.00

mpn: 1148 LdDx75ft,

Heron 1148 LdDx75ft Little Dipper-Water Level Meter, 75'Easy to read and accurate (to ASME standard) heavy duty polyethylene jacketed tape with stainless steel conductors. Modular electronic panel with battery drawer, audible signal and light, sensit...


Milton S-639 1/4'' NPT In Line Lubricator
Milton S-639 1/4" NPT In Line Lubricator
In Stock
$15.01

mpn: S-639, ean: 0030937006394,

In line lubricator with 1/4" MNPT x 1/4" FNPT to lubricate pneumatic tools for full protection. Accurately meters correct amount of oil. Milton oil #1001 recommended. in line lubricator is great for when you don't have access to full FRL system. 1/2 ...


WCC-1138 Auburn Liquid Level Sensor (Probe)
WCC-1138 Auburn Liquid Level Sensor (Probe)
In Stock
$84.75

mpn: WCC-1138,

Auburn liquid level control electrodes are used in control systems that rely on the electrical conductivity of fluids. These products are ideal for controlling liquid and moisture levels in food, dairy, drug, and chemical processing. Additional appli...


Uxcell Stainless Steel Tank Pool Pump Liquid Water Level Sensor Float Switch
Uxcell Stainless Steel Tank Pool Pump Liquid Water Level Sensor Float Switch
In Stock
$10.78

mpn: a15052100ux0415, ean: 0711331976628,

This is a stainless steel Float swith, contains no mercury. This Float switch is a device used to sense the level of liquid within a tank, the switch may activate a pump, an indicator, an alarm, or other device. This Float switch is a simple structur...


Gems Sensors 3R2C0 316 Stainless Steel General Purpose Probe, 1/4'' NPT Male, 2' Length
Gems Sensors 3R2C0 316 Stainless Steel General Purpose Probe, 1/4" NPT Male, 2' Length
In Stock
$35.36
$35.17

mpn: 3R2C0,

Gems probes are metallic rods with threaded ends that screw into a fitting that extends vertically down into the liquid. Series 3R: 1/4" (0.64 cm) threaded rod. 2' probe length. 1/4" NPT male.Series 3R probes are metallic rods with threaded end. For ...


Flowline LM52-1410 PVC Reducer Bushing, 2'' Slip x 1'' NPT Thread
Flowline LM52-1410 PVC Reducer Bushing, 2" Slip x 1" NPT Thread
In Stock
$15.89
$6.09
You Save: 62%

mpn: LM52-1410,

LM52-1410 Reducer Bushing, 2" Socket x 1" NPT, PVC, Sch 40PVC material. Reducer bushing. 2" Slip by 1" NPT thread. Scheduled 40. Pack of 1. ...


TouchSensor 100600442-01 SensaLevel Ultra Single Sensor
TouchSensor 100600442-01 SensaLevel Ultra Single Sensor
In Stock
$53.60

mpn: 100600442-01,

Sensa Level Max Sensa Level Max is a one sensor system that simply turns on an indicator light when your holding tank is close to full or your fresh water tank is close to empty depending how you choose towire it. Effective and great for any low budg...


Milton 1120-8 1/2'' Metal FRL Filter Bowl
Milton 1120-8 1/2" Metal FRL Filter Bowl
SKU: #MIL1120-8
In Stock
$64.31
$58.00
You Save: 10%

sku: MIL1120-8, mpn: 1120-8, ean: 0030937112088,

This 1/2" NPT Milton micro filter is supplied with pre-assembled automatic overnight drain, 3 stage baffle system and a porous bronze 40 micron filter element. Micro filters remove harmful water or oil condensate, pipe scale, dirt and rust from compr...



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