Measuring devices for leak testing and tools for the roof
Discover our first-class range
Our products are faithfully at the side of craftsmen – whether high up on the roof or deep down in the boiler room. They make work easier and help to create safe living spaces. Our two main product ranges include
- Measuring devices for leak tests of pipes in buildings for plumbers, system builders and tradesmen in the HVAC sector
- Sheet metal bending and folding tools for roofs and façades for tinsmiths, plumbers and sheet metal workers
Discover our sophisticated solutions
We only manufacture products that are convincing in practical use. That’s why they are designed to really help you in everyday life and set us apart from others.
Tools from craftsmen for craftsmen
Our products come from practical experience. That's why they are user-friendly, suitable for the construction site and well thought out down to the last detail.
Everything safely in one case
The measuring device and accessories are always stowed away safely, clearly and within easy reach. So you have everything you need with you and nothing gets lost.
Durable and robust
Our products have the high quality "Made in Germany", are reliable and have been optimized over decades. This makes them a loyal companion for a craftsman's lifetime.
Our most popular products
Ballpoint pen with TOUCH function (Kopie)
Ballpoint pen with TOUCH function (Kopie)
- Twist action ballpoint pen made of lacquered metal
- Touch function for operating the measuring device display, cell phones, tablets, etc.
- incl. RAU laser engraving
- Ink color: blue, indelible
- Color: blue
- Refill replaceable
- DPG TOUCH Pen Pen / Ballpoint pen SlimLine Touchpen
Shut-off bladder DN 300
Shut-off bladder DN 300
Absperrblase DN 250
Absperrblase DN 250
Tradition meets innovation
Rau GmbH is an owner-managed, medium-sized company, which is tradition-consciously managed in the fourth generation by M. Eng. Frederik C. Rau. Based in Meitingen near Augsburg in Bavaria, we are deeply rooted in our region. Originally developed from a tinsmith and plumbing business, our products are the result of decades of practical experience. As a pioneer in the manufacture of sheet metal bending tools and leak measuring devices, we have developed groundbreaking solutions and hold numerous patents on our innovations
Founded in Augsburg in 1914, the RAU family business now operates internationally.
The thought "It has to be easier" inspired many inventions.
All our products are manufactured in Germany and we give preference to regional partners.
We are constantly striving to reduce our CO2 footprint with targeted measures.
What our customers say
„Tools are being invented to make our work easier. By craftsmen for craftsmen.”
„I think it’s good when you work and produce in Germany and have a high quality standard.”
„Great service, great employees. Unfortunately the exception these days.“
„Very good devices and a very simple system. I just wanted to say a quick thank you and give some good feedback.”
Do you like our products?
Become part of our satisfied customer family! Our products are available exclusively from specialist dealers. You can also find additional accessories for the measuring devices in our RAU accessories store. Immerse yourself in the unique RAU range.