I need to get a ph meter and saw this what do u guys think? Good buy?
http://toronto.kijiji.ca/c-buy-and-...mperature-meter-pen-0-05pH-W0QQAdIdZ558677404
http://toronto.kijiji.ca/c-buy-and-...mperature-meter-pen-0-05pH-W0QQAdIdZ558677404