PRODUCT DATASHEET PH90 Waterproof pH Meter Rugged waterproof (IP57) housing with Flat Surface Electrode for measuring pH in liquids, semi-solids, and solids. Does not break or get junctions clogged like the traditional glass bulb electrodes. Easy to replace sensor is perfect for field or lab use. APPLICATIONS: - Agriculture - Anti-freeze recycling - Aquarium - Boiler - Chemical industry - Cooling tower - Drinking water - Fish farming - Food industry - Garden - Hydroponic - Laboratory usage - Plating industry - Swimming pool & Spa - Water treatment Features • Rugged replaceable flat surface pH electrode for quick • Waterproof design (IP57) floats in water and protects the meter in wet environment on-the-spot pH measurements • Complete with flat surface pH electrode, protective • Simultaneous display of pH and Temperature • 2 or 3 point calibration automatically recognizes buffer sensor cap, and two 3V CR-2032 button batteries solutions (order pH buffers separately) (pH buffers are required for calibration - sold separately) • PTS (percent of slope) tells you when it’s time to replace your electrode (below 70% or above 130%) • Automatic Temperature Compensation • Data Hold, Min/Max, Auto Power Off, and low battery indication Specifications Range Max Resolution Basic Accuracy pH 0 to 14.00pH 0.01pH ±(0.01pH + 1d) or ±0.2pH Temperature 32 to 194°F (0 to 90°C) 0.1° ±1.8°F (±1°C) Power Two 3V CR3032 button batteries Dimensions 1.4 x 6.7 x 1.4" (36 x 170 x 36mm) Weight 3oz (85g) Ordering PH90 ................. Waterproof pH Meter Accessories PH95 ................. Replacement Flat Surface pH Electrode Module PH103................ Tripak Buffer Pouches (6 ea: 4, 7, 10pH, w Rinse solutions) PH4-P................ pH 4 Buffer Calibration Solution (2 bottles- 1 pint each) PH7-P................ pH 7 Buffer Calibration Solution (2 bottles- 1 pint each) PH10-P.............. pH 10 Buffer Calibration Solution (2 bottles- 1 pint each) Specifications subject to change without notice. Copyright © 2015 FLIR Systems, Inc. All rights reserved including the right of reproduction in whole or in part in any form. Rev. 5/10/16 UPC Code: 793950150900 www.extech.com