I have a electric one, but the sender is bad. But any way, I thought this was cool. Never seen it before, yeah yeah you funny gas regulars probably know all about it. I like crap that has controllers and all on it. If I am reading it right it comes with a program box (or something) so you can control outputs that are responsive to bottle pressure points. Ever asked the question: “How much nitrous is in my bottle?” The Nitrous Express Octane Series Bottle Volume Display Controller has the answer NOW! The display controller tells you exactly how much nitrous is in you bottle at a glance. The user-friendly display shows in either percentage or time when you will face an empty bottle situation. It also displays bottle pressure, plus has an optional Air/Fuel display with safety cut-offs. The “Bottle Volume Display Controller” will also control bottle heater and has over/under pressure cut-offs. The vibrant LCD screen reads in either graphic or numeric displays. Fits Standard 2 1/6” gauge pods.

I think it still costs to much, but still think it's pretty cool.

 

Purdy... I'll stick with my remote gauge though, that was spendy enough

 

I'd like one but yeah the expense is hard to justify when all I have to do is open the rear door and look at the bottle mounted gage. Not ruling it out though.

 

If you click on the link in sig BLACK SERIES DISPLAY CONTROLLERS You can read some instructions for that unit.
if you look at the cost of an autometer nitrous gauge, another psi gauge, heater transducer, and safety cut boxes the gauge is really priced nicely.

 

Just adding the tranduscer and gauge together it would be alot. I hear ya...but I am in the same boat as ZR1 Dreaming, I already have the dakota digital gauge, i just need a new sending unit (speaking of too much 99 bucks ugh). I am buying on ebay now a transducer and blanket, hoepfully I can grab those 2 items for under 50 bucks. But of course my middle name IS Murphy, the transducer is probably broke. The blanket is new NIB, I'll mail back a dog turd to the guy if that doesn't work. I like this thing, I just already have of the stuff.