Myron L® offers a variety of ULTRAPEN™ pocket testers, each featuring simultaneous measurement of Temperature and one critical parameter: PT1 and PTBT1 measure Conductivity, TDS, and Salinity; PT2 and PTBT2 measure pH; PT3 and PTBT3 measure ORP; PT4 and PTBT4 measure Free Chlorine Equivalent (FCE); PT5 and PTBT5 measure Dissolved Oxygen (DO); PT6 and PTBT6 measure Nitrate. Click to read more...