I have both hanna meters,$35.00 + S & H the small one is 2 ppm higher reading than the large expensive one $140.00, + S & H but as long as you test it and allow for that small error who cares? My Model 77 Colloid Master will test the silver ppm and the water I use in it. But I use the hanna testers for my own satisfaction, and show. Tel Tofflemire Dewey, AZ.
________________________________ From: GARY ABEL <[email protected]> To: [email protected] Sent: Mon, March 8, 2010 5:40:56 AM Subject: CS>Silver Meter Hello, I'm looking for any thoughts on meters to check the ppm. Someone told me you needed the Hanna PWT that costs about $60. I found a Hanna Primo for half that. The fellow that told me about the PWT says he checked the Primo and it wasn't accurate. I contacted the company that sold it to me and they said it basiclly has the same component inside as the Hanna PWT. I would like to be able to be fairly certain what ppm I'm making. Any comments on this is appreciated. -Thanks Gary Native American style flutes & Matted photos by ~ Gajon ~ www.etsy.com/shop/gajon
