You could fill a bath tub and mark the water level. Then get in the bath and briefly immerse yourself under the water while a friend marks the new water level. Get out, dry yourself off and calculate the volume of water you displaced. I would imagine water weight is roughly akin to body weight? As Archimedes would say, Eureka!
Weigh sling. I keep unit off until im ready to weigh and have sling hooked up then turn on, weigh and deduct sling lb. Mine is 2lb
c4/5 inc funtioning c6. 28 yrs post.
sponsored handcycle racer
That Lillypad wheelchair scale looks cool, but $600+? Ouch. https://lilypadscales.com/shop-product.php
T3-T7 complete since Sept 2015
Does anyone use a hanging scale with a sure hands lift? You would only have to be lifted the bare minimum a few inches until you are clear and hanging on the scale, but the webbing from the sure hands lift uses a spreader bar and to use the hanging scale, one would have to hook all of the webbing loops onto one common hook. I think it would be okay since it is just for a brief moment and only for a very short distance vertically, after which time you can get lower down immediately.