Apera InstrumentsAPERA Instruments AI316 Premium Series PC60 5-in-1 Waterproof pH/EC (Conductivity) & AI209 Value Series PH20 Waterproof pH Tester Kit

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About this item Product 1: Measures pH/EC/TDS (ppm)/Salinity/Temp. in a quick and professional manner Product 1: Replaceable multi-parameter probe with easy installation Product 1: When the smiley face icon stays on screen, it's the right time to record the measurements. Product 1: LARGE Clear LCD screen with 3 backlit color (indicating 3 different modes), dual display of temp. + pH/EC/TDS/Salinity, and icons of completed calibrations and stable readings Product 2: Easy auto. calibration with buffer recognition; auto. temp. compensation (ATC) ensures accuracy in various temperatures (32 to 122F) Product 2: Backed by Apera quality pH sensor with low impedance, ensuring high response rate Product 2: Comes in a rugged carrying case with pH 4&7 buffers and a lanyard Product 2: Auto recognition of stable values improves consistency, so you don't have to guess when to manually hold measurement Show more