pH Meter & Pool Salt Tester Digital 5-in-1 Salinity pH EC Temp TDS Meter for Water Quality, Waterproof Water Tester with Backlight for Swimming Pool Drinking Aquarium Hydroponic Spas Hot Tub

Discover the ultimate water quality testing solution with our 5-in-1 Digital Water Test Pen. This versatile device combines a pool salt tester, pH meter, TDS meter, and digital salinity tester for salt water pools into one convenient, portable tool. Whether you're a pool owner, aquarium enthusiast, or water quality professional, this multifunctional tester is designed to meet all your water analysis needs. Featuring high-precision sensors and advanced technology, our water test pen provides accurate measurements for five essential parameters: pH: Measure water acidity/alkalinity from 0.00 to 14.00 pH TDS (Total Dissolved Solids): Monitor water purity from 0-1000 ppm and up to 200.0 ppt EC (Electrical Conductivity): Assess mineral content from 0-9990 µS/cm to 400.0 mS/cm Salinity: Measure salt concentration from 0.01-25.00% or 0-10000 ppm Temperature: Check water temperature from 0.1-60°C (32.1-140°F) The easy-to-read backlit LCD display ensures clear visibility in all lighting conditions, making it perfect for both indoor and outdoor use. Our pool water tester's automatic three-point calibration system (pH 4.00, 6.86, and 9.18) guarantees precise pH readings, while the Automatic Temperature Compensation (ATC) function adjusts for temperature variations, delivering reliable results in any environment. Designed with user convenience in mind, this waterproof digital salinity tester for salt water pools boasts a sleek, pen-shaped design for effortless handling and storage. Its durable construction ensures long-lasting performance, even in wet conditions, making it ideal for frequent use around pools, spas, and aquariums. Perfect for: Pool and spa maintenance Aquarium care Hydroponics and agriculture Drinking water quality assessment Laboratory testing Environmental monitoring Don't compromise on water quality – equip yourself with the most comprehensive and reliable water testing tool available. Our 5-in-1 Digital Water Test Pen combines functionality, accuracy, and ease of use to help you maintain optimal water conditions for your specific needs. Mode: 9909

• 【5-in-1 Multiparameter Water Tester】Combine five essential tests in one device! This versatile tool measures Salinity, TDS, EC, pH, and Temperature, eliminating the need for multiple meters. A cost-effective water test kit for pool owners, aquarists, and home labs, it guarantees efficiency, accuracy, and peace of mind for all your water quality needs.
• 【One-Touch Salinity Testing】Operating this salt water tester is a breeze—just turn it on, press the MODE button, and switch to SALINITY mode. Its user-friendly design ensures quick, precise readings for pools, koi ponds, aquariums, and marine monitoring, delivering a premium testing experience.
• 【pH Meter for Multiple Applications】The PH meter is a must-have tool for ensuring water quality in various settings. Perfect for testing drinking water, monitoring swimming pools, checking aquariums, spas, hydroponics, and RO/DI systems, this digital pH tester helps maintain optimal pH balance for healthier living.
• 【High-Precision TDS Meter】Equipped with a titanium alloy probe, the TDS meter provides fast, accurate readings for water purity testing (0-9999ppm, 0-200ppt). Whether checking tap water, aquariums, or hydroponic solutions, this ppm meter ensures dependable results every time.
• 【Ideal Pool Salt Tester】Say goodbye to complex conversions! This pool salt tester features three display modes (PPM/PPT/%) for effortless salinity measurement. Test swimming pools (0-9999ppm), seawater (10-200ppt), or food salinity (0.01-25%) with automatic unit switching—no manual calculations needed for accurate, hassle-free results.