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Compact 316 SS Ultrasonic NO Level Switch



Item# LVSW-710

In stock

Lead Time (If not in stock): 40 weeks
  • Easy to Install
  • No Moving Parts
  • Epoxy-Sealed Integral Electronics with Sensor
  • Low-Cost Replacement to Mechanical Float

LVSW-710 Model Options

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Process Connection Size
Media Type
Max Operating Pressure
Max Process Temperature
Wetted Materials
Process Connection Type
Switch Rating and Type

The LVSW-710/720 compact solid state liquid level switch is a great replacement for mechanical float-type liquid level devices. The switch employs proven ultrasonic technology and solid state integral electronics in a small package. The LVSW-710/720 provides reliable operation in virtually any liquid, regardless of viscosity. This eliminates problems of stickiness and failure rate due to finite mechanical life inherent in the mechanical float design. The combination of fully epoxy-sealed electronics and ultrasonic sensing technology will provide years of maintenance-free service

Repeatability: 2 mm or better
Delay: 0.5 sec
Input Power: 5 to 30 Vdc
Leakage Current: Less than 50 uA
Wire Length: 300 mm (12")
Protection: Transient, reverse polarity
Sensor: 316 LSS
Temperature: -29 to 80°C (-20 to 176°F)
Pressure: Up to 250 psig (1724 kPa)
Mounting: ¼ or ½ NPT (depending on model number)
Relay Output: 1 A SPST, NO
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Rated 4 out of 5 by from Missing document info I couldn't find any documentation that describes the cable/wire information (gauge, insulation/jacket type, etc), so I wrote this review to provide that: The cable that was attached to mine is a Belden 9535, and Belden provides a nice spec sheet on their website.
Date published: 2017-06-02
Rated 5 out of 5 by from Great Sensor - Would Like to See Future Variations Sensor operating voltage is versatile (5-30VDC). My application uses 6VDC. Sensor is compact enough to make it work in tight areas. It is 1/2” NPT and 3” long. I would love to see the following variations in the future: 1) Make the wiring via a connector instead of cable coming out connector. This will allow easy removal. 2) If point 1 is not possible, make the cable longer, maybe 6-ft. 3) Make another sensor with longer length; may be 2-in longer. This will allow the shorter one to be used for level control, while the longer used for low level alarm.
Date published: 2021-03-11
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Can the sensor be mounted vertically?

Asked by: jramos
Unfortunately, these level switches are only intended for side mounting. Please consider the LVSW-701 as an alternative that can be mounted in any direction.
Answered by: Application Engineer JM
Date published: 2021-11-17

What Controller or other device does this get attached to?

Asked by: Matt123456
Thank you for your inquiry. Unfortunately, there are no other device attached or link wit this level switch.
Answered by: JC ENGR
Date published: 2020-12-08

Will this switch operate in a engine coolant type of liquid ie glycol ?

Asked by: generator guy
Thank you for your inquiry! Yes, this switch will operate effectively with engine coolant.
Answered by: Application Engineer JM
Date published: 2021-05-24

Can you provide a CE declaration for the LVSW-710?

Asked by: Engr
Yes, we can. Send us an email to and we can reply with a copy.
Answered by: ASE HPO
Date published: 2020-06-09

What is the wire gauge and its insulation thickness for this product? What about insulation material?

Asked by: joshjosh667
24 AWG stranded (7x32) tinned copper conductors, semi-rigid PVC insulation, PVC - Polyvinyl Chloride: Thickness 0.032 in (0.81 mm) and Diameter 0.189 in (4.80 mm)
Answered by: AEHPO
Date published: 2024-01-11

What is the difference between the LVSW-710 and 720?

Asked by: MROY
Thank you for your inquiry. The LVSW-710 and LVSW-720 have different dimensions. The pdf data sheet above has the full dimensional drawing.
Answered by: AS Engineer
Date published: 2019-11-16

Can I mount the LVSW horizontally and still get accurate sensing?

Asked by: Finn
Yes The manual recommends horizontal installation
Answered by: Delmar
Date published: 2020-01-24

Can the LVSW-710/720 sensors be submerged in water - to a depth of about 20ft? I'm considering using a short array of them to measure liquid level movement - the deeper ones would be always submerged and as the test proceeds the level will rise.

Asked by: nickw
Thank you for your inquiry for the level switch. Unfortunately, it cannot be submersed since the cable shown is not water proof, only potted.
Answered by: JC ENGR
Date published: 2021-02-02
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