Runn NPE instalation

Hi! First, sorry for my english. I have bought Runn NPE. Can some one tell me the distance i must place the stickers in cm? The instruction put 18” but i dont know if this IS cm or other
Thanks!

Try 40 to 45cm apart, it doesn’t have to be precise. I have 5 on my treadmill about that far apart and it’s pretty accurate.

Ah! Ok! I was going to install only 3 stickers as the instructions say. Thank u!!!

Try it both ways, one may be more accurate than the other, but it works for me. About 0.1kph off what the treadmill is saying which is pretty decent.

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Mine has arrived. Fitted with 2 stickers. Manual says 18" apart but I don’t think it matters a great deal. Ran the calibration and it reports that the pace is close to being true to real life. Looking forward to testing it for real tomorrow.

Well, I can’t get it to work. I installed it following the instructions and at first it was fine but it stopped marking the speed. I updated the firmware and recalibrated it, but after a few minutes it returned to 0 speed. I have put fewer stickers and the same. I have moved the site sensor and the same. works and stops working

Can you get the unit to ‘see’ the sensors if you manually hold it rather than in the cradle? I was convinced mine had broken until I realised it was too close to the back of the treadmill belt.
Reset in Configurez app too,
Don’t give up, runn support are good too

Just got this today and was wondering if anyone else found that the speed registered was different than what the treadmill controls say they are supposed to be? At the low end 3.1mph is supposed to be 4.99 km/h but the Runn says my treadmill is running at 4.5 km/h. At 5 mph it reads mostly 8 km/h which is what I was told to calibrate at and is supposed to 8.05 on my conversion chart which seems fine. But other speeds on my treadmill are off which could mean that my treadmill presets simply aren’t accurate. Any advise?

P.S. - I have 4 reflective stickers 18 inches apart.

My experience is that my treadmill seems to be less accurate at maintaining the lower end speeds. Not sure if this is because there is more strain on the motor at these levels with having to pull a heavier weight whereas at faster speeds you tend to skip along with less contact time on the belt, don’t know only guessing.
Anything below 7.5 km/h I can jump 0.2 either above or below speed but when I hit 9 km/h it’s pretty bang on.
Have tried recalibration, more stickers, less stickers (couldn’t get update in configurez to work, maybe will try again), different heights in the cradle, but it always comes out the same, so looks like the problem is the treadmill. It’s not a big issue for myself as this zone is only for warm ups or slow recovery runs but can imagine that if yours is out at the higher end speeds you maintain for longer runs then this would be a real concern.
One small thing that might help is that when I calibrated it seemed to help accuracy if I didn’t run on the treadmill during the speed tests. Tried it both ways and standing off for the 1min calibration test gave my machine a more accurate level when I did start running in real time.

It’s a fine art getting it calibrated.

I’ve tried most different techniques.

I’ve used the Runns default calibration which is great at 5mph but then goes off as the speed increases.

I’ve tried Zwift calibration but I can do two runs on separate days at the same treadmill speed and I’ll get different Zwift speeds.

I’ve tried 4 stickers and 1 sticker. I’ve adjusted cradle height.

I’ve calibrated on and off the treadmill.

I think to be fair is the treadmill that’s the issue more than anything. The speed varies as the deck and motor warm up. I can be mid run and step in the side plates for a second or two then get back on the deck and the speed will be totally different to when I was initially running.

The difference in reported speed between me being on the treadmill as opposed to off it is around 0.5mph. I’m not that heavy surely.

You’ll also note the reported speed on Zwift will be constantly fluctuating. Annoys the hell out of me and I’m pushing both NPE & Zwift to do some power smoothing of some sort.
This is the main reason I’m thinking of buying a Stryd.

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