Insta-Test Pro 400<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Tests for free chlorine， bromine， total chlorine， alkalinity and ph</li><li>Contains 100 strips</li><li>Measures free chlorine 0 to 10 ppm， bromine 0 to 20 ppm， total chlorine 0 to 10 ppm， alkalinity 0 to 240 ppm and ph 62 to 84</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41LayqEsrSL.jpg" noproxy>