Hi Bennie, finally price is $80.
I will include 1 hall sensor (wired and with connectors for easy removal), 1 neodymium disc magnet (1/8 x 1/16, 3/16 x 1/16 or 1/4 x 1/8) (diameter x length) and the unit with NGK spark plug cap (high quality 5K ceramic resistor to protect against RFI, maximum heat resistance, long durability and waterproof). Sorry I don't have a brochure yet, I'm building a web site. I will pm you with availability this week. Thanks for your interest.