http://www.google.com/products/cata...zsB7T66eE7KI0QGGr5y4Bg&sqi=2&ved=0CKUBEPMCMAM#
i jusst returned my hanna PHep tester it was crap and want something with more quality for a bit more any ideas?
http://www.google.com/products/cata...zsB7T66eE7KI0QGGr5y4Bg&sqi=2&ved=0CKUBEPMCMAM#
http://www.google.com/products/cata...=X&ei=bsF7T8PxIKvJ0AHthO3yCw&ved=0CKIBEPMCMAI#
i jusst returned my hanna PHep tester it was crap and want something with more quality for a bit more any ideas?
http://www.google.com/products/cata...zsB7T66eE7KI0QGGr5y4Bg&sqi=2&ved=0CKUBEPMCMAM#
http://www.google.com/products/cata...=X&ei=bsF7T8PxIKvJ0AHthO3yCw&ved=0CKIBEPMCMAI#