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Hanna Waterproof Pens

From $119.95

Hanna Instruments offer the most advanced pens on the market today. The pHep4 pH/Temperature Waterproof Pen has a .01 ph resolution. The Dist5 EC/TDS Pen is unmatched in EC/TDS/Temperature measurement. The Combo pH/EC/TDS/Temperature Pen offers highly advanced accuracy with a single tester. All Hanna Instruments pens offer replaceable graphite electrode, temperature in °C or °F, automatic temperature compensation with adjustable battery level indicator, stability indicator, automatic shut-off and automatic calibration all in a floating waterproof casing.

HM AP-1: AquaPro Water Quality Tester (TDS)

From $44.95

HM Digital introduces its new AquaPro series, a line of handheld TDS/EC meters with a sleek design that's perfect for today's modern kitchen. The AquaPro digital water testers are the next generation for today's tech-savvy and health-conscience consumer. FEATURES Measures total dissolved solids (TDS) and temperature. Automatic Temperature Compensation (ATC) Water-resistant housing Measurement Range: 0-5000 ppm Digital Calibration (push button) Auto-off function, data-hold function and low-battery indicator. Display: large and easy-to-read LCD screen includes simultaneous temperature reading. Factory Calibrated: The AquaPro is calibrated with a 342 ppm NaCl solution. The meter can be recalibrated with digital calibration using the push buttons, rather than a screwdriver. Includes a cap and batteries. Comes in a retail-oriented package.

HM Digital TDS-3 Handheld Meter With Carrying Case

From $36.95

Ideal for all water purification applications, wastewater regulation, aquaculture, hydroponics, and colloidal silver. Perfect for both consumer or commercial use. Carry one in your pocket or toolbox at all times! Features Ideal for commercial use. Includes a carrying case with belt clip. Highly efficient and accurate due to its advanced microprocessor technology. Hold Function: saves measurements for convenient reading and recording. Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries. Measurement Range: 0-9990 ppm. From 0-999 ppm, the resolution is in increments of 1ppm. From 1000 to 9990 ppm, the resolution is in increments of 10ppm, indicated by a blinking 'x10' image. Built-in digital thermometer Display: large and easy-to-read LCD screen. Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver. Also available in "x10" mode: reads in increments only of 10 ppm (0-9990 ppm).

Milwaukee MW302

From $114.49

Smart Portable Conductivity Meter w-ATC range - 0..These smart meters are low cost portable meters with no unnecessary frills. Comes complete with electrode 9v battery and calibration solution.Group features portable meters with high accuracy and these other attributes: Faster Processor with The New Chipset and Motherboard 100% Larger & Easier To Read LED Display Smaller, Ergonomic & Lighter Case Design Easier & Faster To Calibrate Longer Battery Life

Milwaukee MW401

From $114.49

Smart Portable TDS Meter w-ATC, range - 10 to 1990 These smart meters are low cost portable meters with no unnecessary frills. Comes complete with electrode 9v battery and calibration solution.Group features portable meters with high accuracy and these other attributes: Faster Processor with The New Chipset and Motherboard 100% Larger & Easier To Read LED Display Smaller, Ergonomic & Lighter Case Design Easier & Faster To Calibrate Longer Battery Life

Milwaukee C66

From $83.95

Milwaukee C66 High Range Waterproof Conductivity Tester pH Electrode with Built in Temperature Sensor Replaceable electrode IP67 Waterproof casing Automatic Temperature Compensation Easy to use Replacement electrode available

Milwaukee MC110 PH Monitor

From $120.95

This is an upgrade from the SMS110... Milwaukee MC110 pH Monitor, Set Point 3.5-7.5pH. The MC Monitors are designed to continuously monitor pH, EC or TDS values directly in your reservoir. Each unit features a user selectable set-point. An LED visual alarm is activated and flashes when the pH, EC or TDS level rises either Above or Below (user selected) that set-point. All these instruments run on a 12V adapter so there's no need to worry about failed batteries and each unit comes with mounting kit, probe, probe holder and starter calibration solution. Professional pH monitor especially designed for use with aquariums. •User selectable Hi/Low Set Point •Manual 2 points calibration •Visual LED alarm •Supplied with 12 VDC adapter, mounting kit, and 20ml pH 7.01 calibration solution •Double junction pH electrode with 2m cable (BNC connector

Milwaukee MC410 TDS - PPM Monitor

From $120.95

Milwaukee MC410 TDS - PPM Monitor Old SMS410 Smart Monitoring System Range: 0 –1990 ppm with Accuracy of ±2% Full Scale and 1 Point Manual Calibration. Set Point Range 700 to 1800 ppm, and LED Visual Alarm Active when reading is Higher or Lower ( user select ) than the set point. Supplied with 12 V DC Power, MA812/2 PPM Probe & 20 ml. 1382 ppm Sachet Calibration Solution and Screwdriver for Calibration. - Unit comes with Mounting Kit and Probe Holder

Milwaukee Refractometer

From $154.95

The new digital refractometers are precision optical instruments used for measuring concentrations of substances in aqueous solutions. They work using the principle of light refraction through liquids. When passing light through a liquid, the test result will be calculated by the computer and shown in the digital display. Milwaukee refractometers are very simple to use: simply place one drop of your sample in the prism well, and read the results immediately! Digital Sugar Refractometer for general purpose with automatic temperature compensation (ATC). Range 0-85% Brix, resolution 0.1%, units come with battery.

Milwaukee SMS310

From $120.95

The SMS 310 Smart EC Monitor allows you to continuously monitor EC values directly in your aquatic environment. Features include: a user selectable set point, visual LED alarm when readings go below the set point and manual calibration. Powered by the included 12VDC adapter the meter is also supplied complete with an EC electrode. Professional and easy-to-use EC monitor. Some of the SMS 310's features include: •Large and easy to read LCD •Low Cost •Easy to Use •User Selectable Alarm set point •EC Electrode Included •Manual 1 point calibration •Visual LED alarm •Works with 12 VDC adapter •Probe with 2m cable

Milwaukee T75

From $83.95

The Milwaukee Sharp T75 meter gives you automatic temperature compensation for accurate results. Because it has a replaceable electrode (part #MA73075), you can expect to use it for many years. Battery life is 250 hours of continuous use. It takes three (3) 1.5V batteries, which are included. Milwaukee Sharp T75 specifications: Range: 0 - 1990 ppm Resolution: 1 ppm Accuracy: ± 2% full scale Calibration: Manual 1 point Electrode: Replaceable MA73075 Temperature Compensation: Automatic 0 - 50°C Battery Life: 250 hours of continuous use Battery Type: 3 x 1.5V (included) Environment: 0 - 50°C / 100% RH