I think that is what it's called.. Has anyone ever bought one before and if so, any reviews?

I saw this Smitty built on amazon for $16 but it didn't get a good review.. I'm still thinking about giving it a try..

http://www.amazon.com/gp/product/B001CF3J6E/ref=s9_simh_gw_p263_i1?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=center-3&pf_rd_r=0EWKHGACJV2BKAK6EBXJ&pf_rd_t=101&pf_rd_p=470938811&pf_rd_i=507846



There is also this simpler Level gauge.. for $11

http://www.amazon.com/gp/product/B00042K694/ref=s9_simh_gw_p200_i1?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=center-2&pf_rd_r=13JZVGNXQA7RS489V7NK&pf_rd_t=101&pf_rd_p=470938631&pf_rd_i=507846



The ball is inside a dampimg fluid, so the movement should be more smooth / accurate..



I'd really like to get a decent well built unit to the Smitty built above..

I have the second one and it works awesome

I have the second one and it works awesome

that makes 2 good reviews for the 2nd one.. i think i'll get two then.. thanks!