Excellent! Be careful filling it. Do it SLOWLY! Read the instructions.
Most important, make sure the knob is in it's center of travel
and fill it slowly until the fluid level gets close to zero. Remember to hook the low port to the pipe and leave the high port open to the room. This will give you negative values on the positive side of the scale. I used a 16 inch length of brake between the pipe and the rubber tubing. The tubing seals nicely on the brake line. The other end penetrates the pipe about 2 inches. The folded tin on the brake line acts as a stop so it doesn't go in too far. See pics
Oh and disregard all those screws in the pipe. They are sealing holes where I had mounted a couple snap switches in the past for various experiments