Float Switches and Level Switches – Precise Level Technology for Every Application
hlm elektronik is your specialist for float switches and level switches for level measurement.
Since 1988, we have been developing custom sensor solutions in our manufactory in Petershagen –
handcrafted, flexible, and Made in Germany.
Thanks to our modular system, we manufacture each switch precisely according to your needs – starting from quantity 1.
The Right Solution for Every Application
Miniature Float Switches (Ø 8 mm)
Compact, precise, and ideal for small containers or confined installation spaces.
Reliable level detection in minimal space.
Standard Float Switches (Ø 12 mm)
Robust, versatile, and durable for numerous industrial applications.
The proven all-rounder for precise level measurement.
Quasi-Analog Float Switches
For stepped or continuous level detection. Perfect for demanding processes with high measurement accuracy.
Customized Level Technology – Flexible, Precise, Fast
Individual Production
from 1 piece
Over 4,500
Product Variations
30+ Years of
Level Technology
100% Made
in Germany
Short
Delivery Times
The hlm Modular System – Diversity with System
With our modular system, we develop custom float switches and level switches for every application.
Instead of developing each solution from scratch, we combine proven components – quickly, efficiently, and precisely according to your needs.
This results in tailor-made sensor solutions with short delivery times and an optimal price-performance ratio.
Your Advantages at a Glance:
Custom Sensor Solutions from Quantity 1
Technically Proven Components
Short Delivery Times
Fair Prices through Modular Production
Made in Germany – Handcrafted
Tested Quality – Certified and Reliable
Our float switches are manufactured with the utmost care – by hand, directly at our Petershagen site.
Since 2011, our production has been certified according to DIN EN ISO 9001 by TÜV Nord.
This means: documented quality, stable processes, and products you can rely on.
over
Years of Experience
More than three decades of experience in level technology – combined with the flexibility of an owner-managed manufactory.
We develop solutions that fit precisely.
from
pieces to large series
Whether individual production or large series – every float switch is created with the same precision, care, and quality.
Individually manufactured, Made in Germany.
over
Product Variations
Thanks to our modular system, over 4,500 variants are available to you – individually configurable for every application.
hlm elektronik – Sensor Technology with System
Since 1988, hlm elektronik has been developing and manufacturing precise float switches and level switches – custom, reliable, and Made in Germany.
In our manufactory in Petershagen, tailor-made sensor solutions are created on over 650 m² – from single pieces to small series, with the highest care and technical precision.
Morris Wilisch, Managing Director
Quality & Care
We are at home in various industries and develop tailor-made solutions for your products in the field of magnetics and sensor technology.
Do you need a custom solution
for your product?
We offer you numerous customization options.
hlm elektronik Sensor Technology Manufactory – Made in Germany
Long-standing Employees
Experience and commitment combined.
Precision Craftsmanship
Finest sensor technology, carefully manufactured.
hlm Partner Network
Become a sales partner.
Join the hlm elektronik Team
Careers at hlm
Modular System
Over 4,500 variants – individual.
Handcraft with System
Care in every manufacturing step.
Frequently Asked Questions about Float Switches:
What is a float switch and how does it work?
A float switch is a sensor for liquid level detection.
It detects the liquid level via a float that triggers a switching contact as the liquid level rises or falls – usually with the help of reed technology or Hall effect sensor technology.
Which types of float switches does hlm elektronik offer?
We manufacture miniature float switches, standard float switches, and quasi-analog sensors.
Each series is designed for specific installation situations, media, and requirements – individually configurable for your application.
What is a miniature float switch particularly suitable for?
Our miniature float switches with an 8 mm riser tube are ideal for small containers and confined installation spaces – for example, in laboratory equipment, medical technology, or compact machines.
What is the difference between a standard and a quasi-analog float switch?
Standard float switches switch at fixed levels, while quasi-analog float switches detect multiple switching stages or nearly continuous level values – ideal for process monitoring and control applications.
How many switching points can hlm elektronik float switches have?
Depending on the model, one, two, or more switching points are possible – individually adaptable to your requirements, even in small quantities.
Are hlm elektronik float switches also suitable for aggressive media?
Yes. We manufacture in various materials such as stainless steel, PP, PVDF, or PA – suitable for the medium, temperature, and chemical resistance.
Our experts will advise you on the optimal solution for your application environment.
Are float switches available with custom cable lengths or connection types?
Yes. All models can be supplied with individual cable lengths, connectors, or special connections – even from quantity 1.
How quickly can hlm elektronik deliver?
Thanks to our modular system and manufacturing in Germany, we offer short delivery times – even for custom float switch solutions.
For standard products, the production time is usually 2 to 4 weeks.
Are hlm elektronik float switches certified?
Yes. Our production has been certified by TÜV Nord according to DIN EN ISO 9001 since 2011 – for TÜV Nord certified – for documented quality, stable processes, and maximum reliability.
Interested in a project? Or just have a question?
Do you have a specific application, need technical advice, or simply want to make a non-binding inquiry? We are here for you – personally, directly, and quickly.
Call us
+49 (0) 5702 8391 0
Send us an email
info@hlm-elektronik.de
Non-binding inquiry:
Contact us now
