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Our history

It all started in the garage 30+ years ago

in 1990, Rey Harju, had a vision for a stick meter with detachable heads that technicians could swap out to take different readings. There was nothing like it on the market.

The idea came to Rey while driving home from work one day and he immediately knew technicians in the field needed this one versatile, flexible, and expandable tool that could run multiple diagnostics tests. So, Rey set out to transform this idea into reality.

After three years of testing, developing, and refining in the garage, the HS24 stick meter was born and with that, Fieldpiece too. Since then, Fieldpiece has continued to develop game-changing technology like the SMAN® Digital Manifold that forever altered the way technicians work, our wireless Job Link® System probes that make testing easier, and a host of meters and detectors that continue to define the industry.

Founding Fieldpiece


In 1990, after three years of testing in a garage, our founder Rey Harju developed the first tool of Fieldpiece. The HS24 stick meter was born, as so was Fieldpiece.

0001 1991 Rey First Patent
Rey's first patent

Always inquisitive, Rey developed a new, more accurate way to measure pipe temperature. With the ATH4 dual temperature accessory head can measure two temperatures at the same time.


Second generation stick meter

The new and improved stick multimeter, the HS26 was launched, this durable piece offered modular expandability too.


0005 1995 SC64
Loaded clamp meter

The SC64, launched in 1995 was a versatile clamp meter so technicans didn't need to carry so many different tools anymore.


0008 2002 ASH2
Innovation after innovation

Between 1995 - 2002 many new products were developed expanding the Fieldpiece portfolio for the HVACR industry. For example the ASH2, superheat accessory head which gave technicians the ability to quickly measure superheat instead of just winging it with the "beer can cold" method.


0009 2003 HS36
Third generation stick meter

Fieldpiece is always improving their tools, the best example of that is the innovation of the meter that started all of this. The HS36 is the third generation, an expandable true RMS stick multimeter with a backlight.


0010 2004 ST4
Dual temperature meter

A rugged tool which measures two readings while offering superior temperature compensation in rapidly changing environments, that is our ST4.


0011 2005 SC77
True RMS Clamp meter

Also our clamp meter was improved many times. In 2005 the SC77 was launched, one of our most popular digital multimeters equipped with virtually every parameter for HVACR electrical testing.


0012 2006 ASX14 24 SRC product
Superheat & subcooling accessory heads

The multimeters know all kind of different accessory heads. In 2006 the ASX14 and ASX24 were added to the portfolio, allowing techs to automatically calculate superheat and subcooling in one accessory head.


0013 2007 SRL2 K7
Advanced leak detection

A true Fieldpiece innovation, the SRL2K7, the best infrared refrigerant leak detector the world had seen untill 2007.


0019 2010 SMAN3
Introduction of the SMAN® Digital Manifold

The SMAN3 and SMAN4 laid the foundations for the industry leading digital manifolds.


0021 2012 SRH3 STA2 Γ Çô In Duct Diagnostic
Introducting slim probes

The SRH3, a in-duct diagnostic pshychrometer and the STA2, a hot-wire anemometer quickly measure wet bulb and dew points in a variety of locations with their slim probes.


0022 2013 SCM4 SRC product
Standalone CO detector

A field-replaceable CO sensor, this device measures quickly. It is even fast enough for walk-around tests.


0023 2014 2nd gen SMAN
Second generation SMAN® Digital Manifold

Always improving, innovation is in the heart and soul of Fieldpiece. Which is proven by the next generation SMAN® Digital manifold which were the most advanced refrigerant manifold on the market.


0025 2015 Job Link
Launch of Job Link® app

Our first app that tracks and measures multiple measurements from multiple locations in real-time.


History MR45
Introducing the worlds fastest recovery machine

The MR45 is portable, lightweight and can adjust its motor performance to handle liquid and run twice as fast on vapour.


0029 2018 VP85
Introducing our vacuum pumps

In order to provide all the tools technicians in the field need, Fieldpiece designed their own vacuum pumps. And of course it has to be a state-of-the-art device which gives techs the ability to perform a quick and clean oil change.


0030 2019 Enter the European market
United Kingdom office

Fieldpiece is expanding fast, technicians all over the world want to work with our tools. First stop, an office in England to support our UK customers and channel partners.


SM480 Refrigerant Manifold 4-port
Third generation SMAN® Digital Manifold

If we can make it better, we will. Since we have so much contact with the people in the field we know how to improve our products even more. Like our SMAN® Digital Manifold, it even got better!


IMG 5580
European head office and warehouse

Our European team is growing fast. With a strategic placed new head office and warehouse in The Netherlands our team is able to support our EMEA customers and channel partners even better.


TC48 Large Pipe clamp
Worlds' largest pipe clamp

Launching the largest pipe clamp of the world, the TC48 and the JL3LC.

At Fieldpiece we are always looking for the next best thing.


Vacuum Pumps 02 300dpi
Launching 3 new products

First our improved leak detectors, an outstanding vacuum gauge and then three innovation vacuum pump models in 2021 (6CFM, 8CFM and 10CFM).


That's not the end!

But we will not stop there! In 2022 we have more new products coming your way. Stay tuned