Hanna DiST5 EC TDS Temperature Tester - Waterproof 3-in-1 Pen HI98311

3-IN-1 WATERPROOF EC, TDS & TEMPERATURE TESTING The Hanna DiST® 5 (HI98311) is an advanced, waterproof conductivity and TDS tester that delivers quick, accurate measurements in a single pocket-sized device. Measure conductivity (0–3999 µS/cm), TDS (0–2000 ppm), and temperature without switching between multiple meters—perfect for on-the-go testing in hydroponics, aquariums, pools, ponds, and water quality applications. WHY CHOOSE THE DiST® 5? Compact waterproof design – Floats and fits in your pocket for ultimate portability Replaceable graphite electrode – Extends tester life for years of reliable use 3-in-1 convenience – EC, TDS, and temperature in one device Ideal for multiple applications – Hydroponics, aquariums, pools, ponds, and general water testing THE STANDARD IN EC & TDS MEASUREMENT When Hanna first introduced the original DiST® (Dissolved Solids Tester), conductivity and total dissolved solids measurements became easy and affordable for everyone. The DiST®'s combination of simplicity and value made it the industry standard in EC and TDS measurement. Hanna continues this legacy with the DiST® 5—packed with advanced features while maintaining the ease of use that made the original famous. ADVANCED FEATURES FOR ACCURATE TESTING Replaceable Graphite Electrode The HI73311 graphite conductivity electrode delivers superior accuracy by resisting contamination from salt deposits in your samples. Unlike fixed electrodes, this replaceable design extends the life of your tester for years of dependable measurements. Adjustable TDS Conversion Ratio Customize the EC-to-TDS conversion factor (0.45 to 1.00) to match your specific application, ensuring accurate TDS readings for your unique water chemistry. Automatic Temperature Compensation (ATC) Built-in ATC with adjustable β (0.0 to 2.4%/°C) automatically corrects EC and TDS readings based on temperature, eliminating manual calculations and ensuring accuracy across varying conditions. Dual Temperature Display Switch between °C and °F for convenient temperature measurement in your preferred unit. Smart Battery Management (BEPS) The Battery Error Prevention System alerts you when low battery power could affect reading accuracy, preventing unreliable measurements. Get approximately 100 hours of continuous use from four 1.5V batteries (included). Automatic Calibration One-point automatic calibration at 1413 µS/cm or 1382 mg/L (ppm) ensures your tester stays accurate with minimal effort. Waterproof & Floating Design The IP67-rated waterproof casing protects against water intrusion and the tester floats—so you'll never lose it in a pool, pond, or tank. Built to withstand real-world testing environments. CONVENIENT OPERATION FEATURES HOLD button – Freeze readings on the display for easy recording Stability indicator – Know when your reading has stabilized Battery level indicator – Monitor power status at a glance Automatic shut-off – Powers down after 8 minutes of non-use to conserve battery life UNMATCHED VERSATILITY All these professional features are packed into a lightweight, floating, waterproof casing that fits comfortably in your hand or pocket. The DiST® 5 is unmatched for EC, TDS, and temperature measurements in: Hydroponic nutrient solutions Aquarium water quality monitoring Swimming pool and spa maintenance Pond water testing Drinking water quality checks Agricultural irrigation water Laboratory and field testing TECHNICAL SPECIFICATIONS Specification Detail Model HI98311 (DiST® 5) EC Range 0 to 3999 µS/cm EC Resolution 1 µS/cm EC Accuracy ±2% Full Scale EC Calibration Automatic, one point at 1413 µS/cm or 1382 mg/L (ppm) TDS Range 0 to 2000 mg/L (ppm) TDS Resolution 1 mg/L (ppm) TDS Accuracy ±2% Full Scale EC/TDS Temperature Compensation Automatic, with β adjustable from 0.0 to 2.4%/°C EC to TDS Conversion Factor Adjustable from 0.45 to 1.00 Temperature Range 0.0 to 60.0°C / 32.0 to 140.0°F Temperature Resolution 0.1°C / 0.1°F Temperature Accuracy ±0.5°C / ±1°F Probe HI73311 replaceable EC/TDS graphite electrode (included) Automatic Shut-Off After 8 minutes of non-use Power Supply Four 1.5V batteries (included) Battery Life Approximately 100 hours of continuous use Operating Environment 0 to 50°C (32 to 122°F); RH max 100% Protection Rating Waterproof and floats Dimensions 163 × 40 × 26 mm (6.4" × 1.6" × 1.0") Weight 100 g (3.5 oz) UPC 793573622341 WHAT'S INCLUDED HI98311 DiST® 5 EC/TDS/Temperature Tester HI73311 replaceable graphite electrode Four 1.5V batteries Instruction manual The DiST® 5 continues Hanna's tradition of making professional-grade water testing accessible, affordable, and reliable for everyone from hobbyists to professionals.