The Leakseeker-89R is a rework of the EDS-89 by EDS Inc. It was originally designed by Dave Miga of EDS Inc. It was discontinued several years ago and I was looking to purchase a kit. I ended up contacting Dave Miga and he had some parts available. I was a PCB Designer in another life so I got his permission to re-layout the circuit and fit it into a Hammond 1350 case. In addition, I added a battery and a test circuit built into the front panel. I still have to purchase a programmed part from Dave. After purchasing the remainder of the parts, I had to buy extra to bring the cost down. Originally, I only wanted one unit but I ended up getting parts for 20. So I decided to build them all up and sell them.