The LEVEL PROBE contains a float switch mounted in the bottom of an adjustable polypropylene pipe. 

Float Switch Level Probe
PVDF level probe

Better Level Sensing…

  • Rugged. Polypropylene float guard protects float switch from damage.
  • Chemically Resistant. All polypropylene wetted parts plus PVDF cable seal.
  • Built for rough, wet and corrosive environments.
  • Easy Depth Adjustment by hand – simply slide through the cord grip.
  • Shielded cable connects to Gizmo alarm boxes or PLC or other monitoring devices.
  • Reversible float switch.

LIQUID LEVEL PROBE is perfect for mounting in tanks with very low headroom.  The only part that extends above the tank is the cord grip.  Various ways to mount it: the 1″NPT cord grip can fit into a threaded tank bushing, or our rim-mount bracket. 

Depth adjustment is easy and can be done by hand by loosening the cord grip and sliding the probe to the correct depth. When tightened, the cord grip provides a waterproof seal.

The output from the float switch is N.O. or N.C. and the switch is reversible.  Includes 10 ft of 0.031″ wall shielded communications cable to connect to your process. 


Level probes are intended to be used with our Alarm Boxes.  Battery-powered AB-1 or AC powered AB-2R or IS-AB for Hazardous Locations.

Waterproof circular connectors on the end of the cable makes repeated disconnections easy.  When connected to our alarm boxes, two of the conductors are configured in a loop to detect if the cable is missing.

Our level probes can still function successfully in dirty liquids with the addition of a screened float guard. 


LP-PF (polypropylene) models are constructed from polypropylene pipe, polypropylene float. Tank mount is PVC with 1″ NPT thread.

LP-KK (Kynar) models are made from Kynar pipe, Kynar float, and PVDF cable seal.

For Stainless steel model please see this page.

Level Probe with alarm box

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POLYPROPYLENEFloat Switch Level Probe
Working Depth
Float Orientation
PVDF (Kynar)PVDF level probe
Working Depth
Float Orientation


Circular Connector

Makes it easy to connect and disconnect the cable. Great for passing through small openings in walls. Max. O.D. 22mm [0.86″]
[CN-2] $46

Screen to protect float guard

Screened Float Guard

Screens around the top and bottom of the float switch will completely enclose the float which allows for reliable operation in dirty liquids containing solids.
[FS-PP] $19

Rim Mount Bracket

Rim Mount Bracket

A bracket designed for mounting on open tanks and containers. More info.
[MB-R] $34

Extra cable

Extra cable length over the standard length of 10 feet. Heavy 0.032″ jacket for superior durability. Four stranded conductors x 24 gage.
[C4] $0.80/ft

Mounting Options

Adapt to your tank from the 1″ NPT cord grip.

Mounting Type