Carp Scales recommendations

Can anyone recommend any mechanical fishing scales? Been looking at Reuben Heaton as I know they will last a long time, but £60 is a heavy price tag.

Have anyone ever used Saber, or the cheaper version on Reuben Heatons, do they last as long? I’m willing to spend more, but I wanna know if the Saber or the cheaper Reubens are just as good.

Any information is appreciated, thank you

(Trying to avoid digital/battery powered)