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  Our Catalog   Industrial Electrical   Sensors   Liquid Level Sensors

Liquid Level Sensors - 587 - Blowout Sale! Save up to 64%


Blowout Sale! Up to 64% off on Liquid Level Sensors at In The National Interest. Top brands include Warrick, DerBlue, Aiskaer, Madison, Manitowoc Ice, Milton Industries, Anndason, Intek, & Flowline. Hurry! Limited time offers. Offers valid only while supplies last.



Warrick 16MA1A0 General Purpose Solid State Plug-In Module with 8 Pin Octal Socket, 4.7K ohms Direct Sensitivity, 120 VAC Voltage
Warrick 16MA1A0 General Purpose Solid State Plug-In Module with 8 Pin Octal Socket, 4.7K ohms Direct Sensitivity, 120 VAC Voltage
In Stock
$204.25

mpn: 16MA1A0,

Gems general purpose solid state plug-in module. New microprocessor design. Designed for either differential or single level service. U.L. "Motor Controller" listing, 8 pin socket with screw type connections make the unit easy to install and service....


Warrick 16MB2A0 General Purpose Solid State Plug-In Module with 8 Pin Octal Socket, 10K ohms Direct Sensitivity, 240 VAC Voltage
Warrick 16MB2A0 General Purpose Solid State Plug-In Module with 8 Pin Octal Socket, 10K ohms Direct Sensitivity, 240 VAC Voltage
In Stock
$221.00

mpn: 16MB2A0,

Gems general purpose solid state plug-in module. New microprocessor design. Designed for either differential or single level service. U.L. "Motor Controller" listing, 8 pin socket with screw type connections make the unit easy to install and service....


DerBlue Side Mounted Aquarium Pool Liquid Water Level Sensor Stainless Steel Float Switch (Style A)
DerBlue Side Mounted Aquarium Pool Liquid Water Level Sensor Stainless Steel Float Switch (Style A)
In Stock
$11.99

mpn: 43237-2, ean: 8737302644114,

The description of products:The Stainless Steel 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 parameter...


Aiskaer 6 Pieces Side mounted Aquarium Tank Side mounted Horizontal Liquid Float Switch Water Level Sensor-Black (Black-1)
Aiskaer 6 Pieces Side mounted Aquarium Tank Side mounted Horizontal Liquid Float Switch Water Level Sensor-Black (Black-1)
In Stock
$12.99

mpn: 43237-2, ean: 6535650818414,

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...


Madison M8700 Plastic Side-Mounted Liquid Level Float Switch with Polypropylene Stem, 30 VA SPST, 1/2'' x 1/2'' NPT Male, 100 psig Pressure
Madison M8700 Plastic Side-Mounted Liquid Level Float Switch with Polypropylene Stem, 30 VA SPST, 1/2" x 1/2" NPT Male, 100 psig Pressure
In Stock
$24.99
$8.99
You Save: 64%

mpn: M8700, ean: 0094700781314,

Side-mounted liquid level switch has a polypropylene stem and a polypropylene float. Polypropylene is typically suitable for use with acidic liquids such as those found in electroplating and metal cleaning. It is also a great option for lower tempera...


Manitowoc Ice 2511293 Water Level Sensor Probe
Manitowoc Ice 2511293 Water Level Sensor Probe
In Stock
$51.00
$24.99
You Save: 51%

mpn: 2511293, ean: 0046844057039,

2511293, PROBE, SENSOR, WATER LEVEL. Manitowoc Ice Genuine OEM replacement part. Manitowoc Beverage provides state of the art ice machines for the foodservice and beverage industry. Use genuine OEM parts for safety reliability and performance.Genuine...


Milton 1163 Piggyback and Regulator Mounting Bracket
Milton 1163 Piggyback and Regulator Mounting Bracket
In Stock
$12.49
$10.54
You Save: 16%

mpn: 1163, ean: 0030937303998,

This mounting bracket is designed for 1/4" NPT, 3/8" NPT and 1/2" NPT piggybacks and regulators and can be securely mounted to surface through holes on L shaped bracket.For use with Milton piggyback and regulators. Bracket can be securely to mounted ...


Anndason 6 Pieces Plastic PP Float Switch Fish Tank Liquid Water Level Sensor,Model: DP5200
Anndason 6 Pieces Plastic PP Float Switch Fish Tank Liquid Water Level Sensor,Model: DP5200
In Stock
$10.99

mpn: 43237-2, ean: 0723610128178,

Feature: 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. Simple structure,easy installation liquid level controller.Light weight and simple working...


DerBlue 6 Pieces Liquid Water Level Sensor Vertical Float Switches ,Model: DP4500,PP Material
DerBlue 6 Pieces Liquid Water Level Sensor Vertical Float Switches ,Model: DP4500,PP Material
In Stock
$10.99

mpn: 43237-2, ean: 6601003176552,

The texture of guide rod: PP plasticThe texture of floater: PP plasticPressure of work: 15 BarTemperature of work: -10~80℃Accurate error: ±2mm (In the water)Repeatability: ±1mm (In the water)Switch forms:N.O /N.C(Open and close frequently...


Anndason 6 Pieces Black Water Level Sensor Aquarium Tank Side mounted Horizontal Liquid Float Switch
Anndason 6 Pieces Black Water Level Sensor Aquarium Tank Side mounted Horizontal Liquid Float Switch
In Stock
$12.99

mpn: 43237-2, ean: 0723610128154,

Material: Plastic Color :Black Features: 1.The float switch is a device used to sense the level of liquid within a tank. 2.The switch may actuate a pump, an indicator, an alarm, or other device. 3.It can be easily converted from normally open to no...


Intek NT1137 INTEK NT1137 WATER LEVEL SENSOR (NT1137)
Intek NT1137 INTEK NT1137 WATER LEVEL SENSOR (NT1137)
In Stock
$680.70

mpn: NT1137, ean: 0046843616435,

SPECIFICATIONS Height (Inches): 1.75 Width (Inches): 2.5 Length (Inches): 4.0 Weight (Lbs): 0.85 Haz Material: No Freight: No Returnable: Yes Fits Models SX-208-8-3, XSINTEK. INTEK WATER LEVEL SENSOR. NT1137. High Quality. Weight (Lbs): 0.85. ...


Flowline LU30-5003 Echotouch 3-Wire Ultrasonic Level Transmitter with 24.5' Cable, 2'' NPT, 4-20 mA, Sourcing
Flowline LU30-5003 Echotouch 3-Wire Ultrasonic Level Transmitter with 24.5' Cable, 2" NPT, 4-20 mA, Sourcing
In Stock
$995.00
$723.47
You Save: 27%

mpn: LU30-5003,

4.5 out of 5 stars with 17 reviews
The general purpose 3-wire ultrasonic level transmitter provides continuous level measurement up to 24.5’ with a 4-20 milliampere signal output, and is configured via the integral push button display module. The level sensor has one 10A relay which...


Flowline LU81-5101 EchoSpan Ultrasonic Level Transmitter with 18' Cable, 2'' NPT
Flowline LU81-5101 EchoSpan Ultrasonic Level Transmitter with 18' Cable, 2" NPT
In Stock
$795.00
$571.16
You Save: 28%

mpn: LU81-5101,

4.2 out of 5 stars with 10 reviews
The general purpose ultrasonic level transmitter provides continuous level measurement up to 32.8' with a 4-20 milliampere signal output, and is configured via its integral push button display module. This non-contact liquid level sensor is ideally s...


Flowline LI55-1211 DataView Level Controller, Meter with 2 Relays, 4-20 mA Repeater, 85-265 VAC
Flowline LI55-1211 DataView Level Controller, Meter with 2 Relays, 4-20 mA Repeater, 85-265 VAC
In Stock
$730.00
$513.90
You Save: 30%

mpn: LI55-1211,

4.5 out of 5 stars with 60 reviews
The general purpose level controller displays engineering units with one 4-20 mA or 0-10 VDC continuous level sensor input and is offered in three configurations with optional 2 or 4 programmable relays, and an isolated 4-20 mA repeater. Each relay c...


Flowline DL34-01 Polycarbonate EchoPod Multi Function Ultrasonic Level Transmitter with Fob, 1'' NPT, 18' Range
Flowline DL34-01 Polycarbonate EchoPod Multi Function Ultrasonic Level Transmitter with Fob, 1" NPT, 18' Range
In Stock
$625.00
$453.12
You Save: 28%

mpn: DL34-01,

4.2 out of 5 stars with 7 reviews
The general purpose ultrasonic level transmitter provides continuous level measurement up to 18.0’ (5.5m) with a 4-20 mA signal output, and is configured via our free Webcal software. The level sensor has 4 programmable relays with selectable hyste...


Flowline LU78-5005 EchoSwitch Ultrasonic Level Switch and Controller with 26.2' Cable, 2'' NPT
Flowline LU78-5005 EchoSwitch Ultrasonic Level Switch and Controller with 26.2' Cable, 2" NPT
In Stock
$895.00

mpn: LU78-5005,

The general purpose ultrasonic level sensor provides continuous level detection up to 26.2' with 3 programmable relays for level switch or level control functions, and is configured via the integral push button display module. Each relay can be confi...



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