Instant 4-in-1 TDS Meter Digital Water Tester for Drinking Water | Accurate 0–9990 PPM EC & Temp Readings | Ideal for RO Systems, Aquariums, Pools – Built for Professionals, Easy for Anyone

Key Features

• 4-IN-1 WATER TESTING METER – Measures Total Dissolved Solids (TDS), Electrical Conductivity (EC), and temperature in °C/°F. Compact digital design suitable for testing drinking water, aquariums, hydroponics, and RO systems.
• FAST DIGITAL READINGS – Provides TDS, EC, and temperature measurements within seconds. Features one-button operation and a backlit LCD display for clear visibility during testing.
• DURABLE DESIGN WITH TITANIUM SENSOR – Built with a titanium alloy probe, auto-off function, and compact handheld design. Suitable for home, aquarium, hydroponic, and water filtration testing.
• INCLUDES DIGITAL TDS GUIDE – Comes with a downloadable reference guide to help interpret TDS readings for common water applications such as drinking water and aquariums.
• COMPLETE TESTING KIT – Includes TDS meter, batteries, and a quick-start guide so you can begin testing right away.
• USA-BASED BRAND SUPPORT – Backed by dedicated customer support. Designed for reliable everyday water testing.

About This Product

Ships from Amazon Amazon Ships from Amazon Sold by Varify Varify Sold by Varify Returns 30-day refund / replacement 30-day refund / replacement Quick refund Usually issued within 24 hours. See exceptions Shipping fee May apply, not eligible for free return. See details Convenient dropoff At any of our 50,000 US locations. See return policy Payment Secure transaction Your transaction is secure We work hard to protect your security and privacy. Our payment security system encrypts your information during transmission. We don’t share your credit card details with third-party sellers, and we don’t sell your information to others. Learn more Gift options Available at checkout Available at checkout This item is a gift. Change At checkout, you can add a custom message, a gift receipt for easy returns and have the item gift-wrapped Add gift options at checkout

Product Details

Brand

VARIFY

Model

‎TDS-4-V1

Dimensions

‎7.4 x 1.93 x 0.75 inches

Weight

‎2.46 ounces

Manufacturer

‎Varify

Date First Available

‎August 5, 2025

ASIN

B0F8Y74QSN

Customer Reviews Summary

Amazing product and it came with two sets of batteries! This TDS meter is small and compact and is a great addition to my collection of fish keeping tools. This meter is how I found out that my tap water is highly packed with minerals. I had no idea how bad it was until I checked my fish tanks and then the tap water. This meter has truly saved the lives of my fish, as I had no idea that every time I topped off their tanks, I was actually layering more minerals into their already highly mineralized tanks. This product is really easy to use and gives quick results, very much so worth the money.