Well, if you want to dig into its guts to see how it calculates the costs for sensor upgrades, you can unlock it without any password.
But, it does present you with an upgradable sensor rating, right in the vehicle stats, next to the autosofts, but it also has other sensors in the vehicle mods drop-downs. Thing about grabbing them from the dropdowns is that they mess with the mod space math unless you grab an Improved sensor array option beforehand.
Personally, when I want to do something like yank out a barometric sensor and throw in a radio signal scanner, I just buy a radio signal scanner over on the gear page. Though, the gear page is a huge mess... I generally do gear by hand since DK's sheet has some costs and rules that aren't RAW, as far as I can tell (like upgrading things is at a discount, possibly based on the idea of selling your old whatever at standard resale %s.)
EDIT: yeah, a few things I'd like to see in that sheet are pages for sensors and eye/ear tronics. I always build some specs and some buds. It seems like everyone has some sort of image link glasses except for the robot eye folks, and they're getting to be few and far between. Might as well make building a pair a little easier. As well as handheld sensors. I use a bit of those. Good spy gadgets.
