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Flowline - Blowout Sale! Save up to 81%


Blowout Sale! Up to 81% off on Flowline products at In The National Interest. Hurry! Limited time offers. Offers valid only while supplies last.



Flowline LU30-5004 Echotouch 3-Wire Ultrasonic Level Transmitter with 24.5' Cable, 2'' NPT, 4-20 mA, Sinking
Flowline LU30-5004 Echotouch 3-Wire Ultrasonic Level Transmitter with 24.5' Cable, 2" NPT, 4-20 mA, Sinking
In Stock
$995.00
$723.47
You Save: 27%

mpn: LU30-5004,

4.3 out of 5 stars with 8 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 LI90-1001 Commander Multi-Tank Level Controller
Flowline LI90-1001 Commander Multi-Tank Level Controller
In Stock
$757.73

mpn: LI90-1001,

The general purpose level controller displays engineering units with four 4-20 mA continuous level sensor inputs and 6 programmable relays. Select from one of three run configurations: Multi-tank with 4 level sensor inputs and 4 relays. Pump control ...


Flowline LU28-00 , Sensor, Liquid Level, 24.6 ft Range, 2 in NPT, NEMA 6P, 10 ft Cable, cFMus
Flowline LU28-00 , Sensor, Liquid Level, 24.6 ft Range, 2 in NPT, NEMA 6P, 10 ft Cable, cFMus
In Stock
$536.89

mpn: LU28-00, ean: 0634746264985,

LU28-00 EchoSonic? II Ultrasonic LevelTransmitter, 8m (26.2'), 2" NPT, Type 6P, Cable w/o Fob...


Flowline LU30-5064 Echotouch 3-Wire Ultrasonic Level Transmitter with 24.5' Cable, 50.8mm NPT, 4-20 mA, Sinking
Flowline LU30-5064 Echotouch 3-Wire Ultrasonic Level Transmitter with 24.5' Cable, 50.8mm NPT, 4-20 mA, Sinking
In Stock
$1,000.00
$727.28
You Save: 27%

mpn: LU30-5064,

4.8 out of 5 stars with 40 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 LU28-11 EchoSonic II Ultrasonic Level Transmitter with 26.2' Cable, 50.8mm NPT with Fob
Flowline LU28-11 EchoSonic II Ultrasonic Level Transmitter with 26.2' Cable, 50.8mm NPT with Fob
In Stock
$574.97

mpn: LU28-11,

Offered in a type 6P enclosure with cable interface, 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 our free Webcal software. This non-co...


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...


Flowline AU13-1120 Polypropylene Switch-Pro Ultrasonic Level Switch with Controller Only, 3/4'' NPT
Flowline AU13-1120 Polypropylene Switch-Pro Ultrasonic Level Switch with Controller Only, 3/4" NPT
In Stock
$610.00
$116.36
You Save: 81%

mpn: AU13-1120,

4.2 out of 5 stars with 37 reviews
Intended for side wall installation, the general purpose level switch package provides reliable liquid level detection with a 16A compact level controller for pump or valve control. The optional flash alarm brings attention to alarm conditions. Offer...


Flowline LU83-5101 EchoSpan Ultrasonic Level Transmitter with 26.2' Cable, 2'' NPT
Flowline LU83-5101 EchoSpan Ultrasonic Level Transmitter with 26.2' Cable, 2" NPT
In Stock
$895.00
$645.00
You Save: 28%

mpn: LU83-5101,

4.1 out of 5 stars with 35 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 LU20-5001-IS EchoTouch IS Ultrasonic Level Transmitter with 18' Cable, 2'' NPT
Flowline LU20-5001-IS EchoTouch IS Ultrasonic Level Transmitter with 18' Cable, 2" NPT
In Stock
$950.00
$705.00
You Save: 26%

mpn: LU20-5001-IS,

4.5 out of 5 stars with 10 reviews
CSA approved intrinsically safe for use in hazardous locations, the two-wire ultrasonic transmitter provides non-contact level measurement up to 18', and is ideally suited for challenging corrosive, slurry or waste liquids. Push button calibrated, th...


Flowline LD31-S111 Water and Light Oil Polyurethane DeltaSpan Submersible Pressure Level Transmitter, 10 psi
Flowline LD31-S111 Water and Light Oil Polyurethane DeltaSpan Submersible Pressure Level Transmitter, 10 psi
In Stock
$800.00
$532.70
You Save: 33%

mpn: LD31-S111,

4.6 out of 5 stars with 29 reviews
The general purpose submersible pressure level transmitter is offered in three styles for different liquid types and provides continuous level measurement up to 46’ (14m) of water column with a 4-20 mA signal output. Select the LD31 liquid level se...



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