Digital Water Testers

[fishman256]

Hello,

Please can you tell me if any devices are available that can detect the water parameters via a digital sensor rather than using the regular water testing kits?

 

[gonnelro]

Just google digital ph meter. However, I bought one of these recently, and when I got it the instructions say that I have to calibrate it by leaving it in liquid with a ph of exactly 7.1 for an extended period of time. Any idea how I can do this (my tap water is 7.0 on the dot)?

 

[aquaventions]

Hello,

Please can you tell me if any devices are available that can detect the water parameters via a digital sensor rather than using the regular water testing kits?

Yes, there are quite a few of them. There are some inexpensive ones: http://cgi.ebay.com/Technika-Water-...ZWD1VQQ_trksidZp1638.m118.l1247QQcmdZViewItem

There are also expensive multiparameter ones if you want to measure e.g. dissolved oxygen or nitrate:
http://www.milleranalytical.com/Combination_Meters.htm

 

[brianp]

If you go to a vendor such as VWR Scientific, Scientific Products, etc., you will find a variety of digital testers for various water parameters. With regard to calibrating electronic pH meters, you have to purchase calibration solutions which are precisely pH 7, etc.

 

[aquaventions]

Just google digital ph meter. However, I bought one of these recently, and when I got it the instructions say that I have to calibrate it by leaving it in liquid with a ph of exactly 7.1 for an extended period of time. Any idea how I can do this (my tap water is 7.0 on the dot)?

They sell calibration solutions http://www.aquaticeco.com/index.cfm/fuseaction/listings.categories/ssid/23
for that purpose.

 

[gonnelro]

Thank guys, I can finally use my digital meter!

 

[cassharper]

Hannah Laboratories makes some cheaper ones. Usually between $50-60 a piece. I have pH, TDS, and ORP (both have thermometers); works like a charm.