not sure how accurate they are when all are diff. size this one made by a client. Excuse to try out our pic gallery, pretty funny though to think they would get the same reading as standard 18 cm model. Dang wil not show here must be too big???, on link below though
[img]http://www.lakework.com/photo_gallery/gallery2/v/random/P1010001.JPG.html[/img]
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