The RH-03 is a beautifully handcrafted stereo magnetic field sensor, made in Calgary, Alberta, Canada.  An essential part of your field recording setup, the RH-03 is powered by a 9v battery, and connects  to any audio device or to headphones using a 3.5mm stereo jack.  It measures approximately 15cm x 9cm x 3cm.  


Checkout some sounds samples from the RH-03 here.


We use hardwood off-cuts from our supplier to minimize our impact on the environment.  No unit is exactly the same, as every piece of wood has it's own unique colors, grains, and imperfections.  Therefore, each product will look slighty differently to those shown in the photos.


We ship worldwide.  As we are a boutique operation, orders will take between 7-10 days to build and ship.


Manual available here.


Magnetic Field Sensor

  • Each unit is hand rubbed with wood oil.  From time to time, you will want to clean it with a soft lint-free cloth and you may wish rub in a little oil to keep the wood from drying out.