Sensor for Rowing Machine

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Jimmer
Posts: 2
Joined: Wed Jan 20, 2021 4:47 pm

Sensor for Rowing Machine

Post by Jimmer » Wed Jan 20, 2021 4:53 pm

Hi All

First time poster. I’m trying to find out what type of sensor this is (see attached). It measure strokes/speed on my rowing machine, but I think that it has failed. I’m wondering if I can replace it, but need to identify what type first. Your help would be appreciated.
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Jimmer
Posts: 2
Joined: Wed Jan 20, 2021 4:47 pm

Re: Sensor for Rowing Machine

Post by Jimmer » Wed Jan 20, 2021 6:53 pm

Looking closer, this looks like it was specially made for the rower. Appears to be 2x Reed switches in a housing. So looks like I won’t be able to get an easy replacement
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David
Posts: 219
Joined: Sun Oct 04, 2015 6:18 pm

Re: Sensor for Rowing Machine

Post by David » Fri Jan 22, 2021 12:17 am

These pics seem to show one sensor with black and white wires, and another with all black wiring. These could be reed relays, but the pics are not very good.
Reed relays are quite old tech nowadays, but are still available. They work by the proximity of a magnet. If you have a multimeter and can reach the leads to the sensors, try bringing a small rare-earth magnet close and see if the relay opens and closes.
Have you tried getting replacements from the supplier of the rower, or from Ebay? Has the magnet (usually placed on the moving part of the rower) fallen off?

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