I liked the old 19051 better, but it's no longer available--the clamp on the 19051 is rated as 20 amps, the much smaller clamp on the 19368 is rated as only 10--I paid a lot less for the older one, bought years ago--the old clamp failed, spring let go, after only 30 years!--replaced the clamp, it still works--bought this one as a back up--that's all it will ever be, for me--