FL50 Ultrasonic Liquid Level Sensor
Quick Overview
The FL50 uses ultrasonic technology to detect liquid level from the top of a tank or vessel without any penetration or wetted parts. Available in nylon (FL50-NY01) and polypropylene (FL50-PP01) housings, the compact 2.48 × 0.68 × 2.48 in form factor integrates directly into OEM equipment enclosures, industrial panel installations, and medical instrument reservoirs. With no moving parts and no fluid contact, the FL50 eliminates mechanical wear and contamination concerns common to traditional float-type level switches.
Specifications
| Technology | Ultrasonic point level sensing |
| Orientation | Top-mount, non-contact |
| Models | FL50-NY01 (nylon), FL50-PP01 (polypropylene) |
| Dimensions | 2.48 × 0.68 × 2.48 in |
| Weight | 0.29 lbs |
| Housing | Nylon (NY01) or Polypropylene (PP01) |
| Price (1–9 units) | $185.00 each |
| Price (10+ units) | $175.75 each |
| Certifications | ISO 9001 |
Key Features
Non-Contact Sensing
Ultrasonic technology detects liquid level from outside the vessel — no wetted parts, no contamination risk.
Top-Mount Installation
Mounts to the top of tanks and vessels with no stem penetration required — simplifies installation and sealing.
Two Housing Materials
Nylon (FL50-NY01) and polypropylene (FL50-PP01) housings for compatibility with a wide range of fluid environments.
Compact Form Factor
2.48 × 0.68 × 2.48 in footprint integrates into OEM equipment, enclosures, and small vessel assemblies.
No Moving Parts
Solid-state ultrasonic sensor with no floats, no reeds, and no mechanical wear — long operational life.
Industrial and Medical
Suitable for tanks, reservoirs, process vessels, and medical instrument fluid monitoring applications.
Related Products
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View product OS2Optical Level Sensor
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View productReady to integrate the FL50 into your design?
Our engineering team can help specify the right housing material and configuration for your application.