[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: DIY Dupla CO2 indicator
>> The CO2 indicator is showing the pH of the water vapor entering the
>> body of the indicator. The body contains a liquid indicator that
>> changes color around pH 7 (bromthymol blue ?)
>Apparently the Dupla CO2 indicator is a fairly simple device. Did somebody
>ever try to conctruct a similar device oneself ?
A DIY CO2 indicator is always possible, but the Dupla CO2 permanent test is the most readable I have ever seen. More than the JBL or EHEIM ones. It is not really expensive - about $20 - and it is really nice in an aquarium. You won't have the same appearance with a DIY CO2 indicator, and you won't have the same precision. If you want to to try a DIY CO2 indicator, good luck ! But I know, by experience that it is impossible to do best products that the Dupla ones.
I know somebody who tried to copy the CO2 reaktor S of Dupla. Yes it works, but mine (the real Dupla) better mixes water and CO2. That's all :-)
| ŒŒŒ ¹¹¹ |Achetez Mac Os 8 !!! / Buy Mac Os 8 !!!
| Jean-Paul Chicheret | http://www.macos.apple.com/macos8/
| 2,route de Dijon |
| 21600 LONGVIC - FRANCE |
| | jpc25 at calva_net
| Tel: 33(0)3-80-67-14-99 | jpmac at planetb_fr
| FAX: 33(0)3-80-31-87-82 | Jean-Paul.Chicheret at inforoute_cgs.fr