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03/02/2009, 04:17 AM
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#1 |
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Registered Member
Join Date: Dec 2008
Location: Louisiana
Posts: 366
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Hanna test instr.
does anyone use the hanna ph and tds combo instrument? or is it better to purchase two different tools?
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03/02/2009, 02:46 PM
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#2 |
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Registered Member
Join Date: Jan 2003
Location: Atlanta Area - Georgia
Posts: 52
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I haven't used one myself but I haven't seen anyone complain about them. Some like to have separate devices for each function and some like multifunction devices. I guess the down side to multifuction is when it breaks then multiple fucntions are down. I myself use multifunction devices like the aquacontroller which has ph, orp, temp, conductivity, etc
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03/02/2009, 03:33 PM
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#3 |
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Bogus Information Expert
 
Join Date: Oct 2000
Location: SW Ohio
Posts: 16,147
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Hanna meters have a good reputation so it should be fine. A TDS meter has far more simple circuitry that a pH meter but things like the power source, amplifier circuits and display are redundant and use the same circuit wiring. Having a combo meter eliminates the need for circuit duplication and makes the combo a cheaper buy without reducing functionality.
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