I have a Whites TDI SL that is in a TDI PULSE SCAN box. 

I purchased the pulse scan a few years back second hand and it came dead on arrival. I sent it into whites and they weren't able to fix the original board but placed a new TDI SL board in the box.

I had saved the receipt of work but after a move I can't locate it.

It's super stable and powerful using the big lithium battery.

2 batteries work and 1 doesn't but will include it in case it can be repaired.

In my opinion this is the best scenario since you have the super stable board of the SL but can use the big battery of the Pulse scan for increased depth.

I'm pretty sure this work was completed in the end of 2019.

The Velcro was made by the previous individual and can be redone. The nut that holds the hand support was lost so I purchased a brass one from home Depot. It's a non issue but wanted to let the next owner know.

Please ask any questions before purchasing.

No returns.