pHTestr 5 Waterproof Pocket Tester

35634-16 Includes Only:Plastic storage caseLanyardFour AAA batteriesFeatures:Large easy-to-read LCD features a three-color backlightSimple to calibrate with automatic standard recognitionRugged IP67-rated housing is waterproof, dustproof, and floats in water with a sensor cap onLeakproof cap with fill line functions as a sample/calibration and hydrating cupSecure-attach a lanyard to prevent losing or dropping in the fieldAuto shutoff extends battery lifeFeatures a glass bulb probe-ideal for general liquid testingThese pocket-sized testers have a replaceable single-junction sensor that can be easily switched out, allowing you to save money by using the tester body over and over again. A large LCD makes viewing measurements easy and features a three-color backlight indicating operational mode-blue for measurement, green for calibration, and red for alarm conditions. Additional features include a holding function to lock in measurements, a self-diagnostic error message, and status icons for measurement stability and low battery voltage. The IP67-rated housing features an easy-to-grip design and floats if accidentally dropped in water when the sensor cap is on. Powered by four AAA batteries, the testers can operate for up to 400 hours continuously. To conserve power, the unit will auto power off after 8 minutes of nonuse. The pH testers feature up to 3-point pH calibration with NIST or US auto buffer recognition, a pH range from -2 to 16 with an accuracy of ±0.01 pH, and automatic temperature compensation.