Simple none GPS computer with odometer which also has gradient readings?

[bighipspeddler]

Thought that both distance traveled and gradients would be useful information to know. Gradient doesn't have to be instant, just what has been done on the trip which can be relayed anytime. I read that the more accurate ones would have a delay so this not a problem.

I fear that a computer with gradient must by necessity also have a bunch of bells and whistles I wouldn't want and thus a hefty price tag.

I also stipulate I don't want GPS as I like to be disconnected from the grid when riding. Same reason I choose to use paper maps rather than new fangled computers. These two things above though would be useful to me on a computer but nothing else.

Doing some initial digging computers with gradient readings have been available since at least the early 2000s so maybe I can pick up an old one somewhere if I know what names to look for? I also read that GPS ones are the most accurate but none GPS ones can be passable if you get the right one. The worst ones I have seen are the cheap spirit level ones and from reviews online are as bad as they look - very inaccurate and more just with forward motion of the rider or bumps.

Any ideas?

 

[si_c]

I'm not aware of any to be honest, but I think you'll struggle to find a non-GPS one that works.

Accuracy of GPS for elevation - and thus calculating a gradient from it - is very poor, satellites look down not from the side so the resolution of vertical changes is limited and prone to measurement inaccuracy. Most GPS enabled computers actually have a barometric altimeter which is used to calculate elevation changes and thus gradient fairly quickly.

You've noticed cheap options will likely be pretty terrible so something like a second hand Garmin Edge or Wahoo Element would be a good option but you've stipulated no GPS which rules them out.

 

[markemark]

How will a device know your gradient without gps? Some sort of pressure sensor or altometer? Not sure that’s even realistically possible.

 

[Ming the Merciless]

I also stipulate I don't want GPS as I like to be disconnected from the grid when riding

GPS isn’t being connected to the grid. It’s one way from the satellites, so your bike computer can work out your position (and elevation).

 

[presta]

https://sigma.bike/product/bc-14-0-wl/?v=15fc885b9ab6

 

[PpPete]

Or one of the little XOSS G+ ?
Button layout is better (IMO) than on the later G2/G3 models, although on the latter the gradient is on front screen

You would need extra wheel sensors to get distance/speed if you can find a unit without GPS - if they still exist; and I'm fairly sure gradient without GPS would be a non-starter.

 

[si_c]

How will a device know your gradient without gps? Some sort of pressure sensor or altometer? Not sure that’s even realistically possible.

Barometer. Most GPS bike computers have them because GPS is terrible at calculating altitude.