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    4 in 1 Digital Water Quality Tester

    This digital water quality tester combines four essential measurements—pH, TDS (Total Dissolved Solids), EC (Electrical Conductivity), and temperature—into a single, compact unit. Whether you're monitoring drinking water, aquariums, hydroponic systems, or pools, this 4-in-1 tester delivers fast and accurate results to ensure water safety and balance.
    SKU: SISCO-WQT-MFM41V
    $59.89
    🚚 Free shipping
    🔙 30-day returns
    📅 Delivery: 7-12 days
    Overview


    This is a portable 4-in-1 digital water quality tester that combines versatility, accuracy, and convenience. It is an indispensable tool for professionals and enthusiasts in fields such as agriculture, hydroponics, aquaculture, and water treatment.

    Digital 4 in 1 water quality tester

    4-in-1 Water Testing Capabilities

    • This digital water quality tester accurately measures TDS, EC, pH, and temperature, offering an all-in-one solution for comprehensive water quality monitoring.
    • The digital water quality tester features real-time voice readouts of measurement results, making it easier to operate without constantly checking the screen.
    • The portable water quality equipped with advanced sensors to provide precise and instant readings, ensuring reliable performance across a wide range of water conditions.
    • A large, easy-to-read backlight screen displays all four parameters clearly, making it convenient to use in dim environments.
    Portable 4 in 1 water quality tester

    Digital Water Tester with ATC

    • Ensures accurate readings regardless of water temperature by automatically adjusting for fluctuations.
    • Simplifies pH calibration with automatic adjustment, making the device easy to maintain and reliable over time.
    • Lightweight and pocket-sized for easy transport, ideal for home, lab, field testing, aquariums, hydroponics, and more.
    • Automatically shuts down after periods of inactivity to save battery life, supporting long-term usage on a single charge or battery set.


    Applications

    SISCO's digital water quality tester offers high precision and versatility, delivering reliable solutions for water quality testing across diverse environments. From ensuring the safety of home drinkable water to managing and maintaining water quality in aquariums, this tester enables users to quickly and accurately measure key parameters like pH, TDS, salinity, temperature, and electrical conductivity (EC). It’s also ideal for testing well water to verify source safety and balancing pH in swimming pools to support a healthy swimming environment. Suitable for both home and commercial use, this tester meets a broad range of water quality testing needs.

    Portable water quality tester for aquarium water

    Aquarium Water

    Portable water quality tester for well water

    Well Water

    Portable water quality tester for tap water

    Tap Water

    Portable water quality tester for drinking water

    Drinking Water

     

    Specs

     

    Model SISCO-WQT-MFM41V
    Measuring Range TDS/EC/pH/TEMP 
    Error Range 2%(TDS/EC)/0.05pH
    Working Current ≤ 2mA
    Battery Capacity 3.7V/400maH
    Working Temperature 0°C-60°C
    Weight 100g
    Dimension 184*44*45mm


    Details

    4 in 1 digital water quality tester dimensions

    FAQs

    Q1: What is a good TDS reading for drinking water?
    A1: A good Total Dissolved Solids (TDS) reading for drinking water typically falls between 50 and 300 parts per million (ppm). Water with TDS levels within this range is generally considered safe and palatable, providing a balance of essential minerals without affecting taste or quality. While the World Health Organization (WHO) suggests that water with TDS levels below 300 ppm is acceptable, levels below 50 ppm may lack necessary minerals, and readings above 300 ppm can indicate excessive impurities or high mineral content, which could affect the taste and potentially pose health concerns over long-term consumption.

    Q2:  How do I use a water quality tester?
    A2: Using a water quality tester is typically simple. For most handheld devices, you just need to dip the sensor or probe into the water, turn on the tester, and wait for the reading. Make sure to follow the SISCO's instructions for best results, as different testers may have specific setup requirements.

    Q3: How to calibrate a 4 in 1 water quality tester?
    A3: To calibrate the 4-in-1 digital water quality Tester, first, prepare the appropriate calibration solution. Turn on the device and immerse the probe in the solution. Press the calibration button and adjust the reading to match the solution’s standard value. After calibration, rinse the probe with distilled water and store it properly. Regular calibration ensures accurate and reliable measurements.

    Tips: What parameters does the 4-in-1 Digital Water Quality Tester measure?

    • TDS (Total Dissolved Solids) – Indicates the concentration of dissolved substances in water, helping assess overall water purity.

    • EC (Electrical Conductivity) – Measures the water's ability to conduct electricity, which correlates with the concentration of ions and salts present.

    • pH – Shows the acidity or alkalinity of the water on a scale from 0 to 14, which is important for water treatment, aquaculture, and other applications.

    • Temperature – Displays the current water temperature, which can affect other parameter readings and is crucial for accurate water quality analysis.

    Warranty

    Thank you for buying industrial test and measurement equipment on SISCO.com, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.


    What is covered?

    SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.


    What is not covered?

    • Product purchased from anyone other than a SISCO store or a SISCO authorized reseller.
    • Expendable parts.
    • Routine cleaning or normal cosmetic and mechanical wear.
    • Damage from misuse, abuse or neglect.
    • Damage from use of parts other than SISCO approved.
    • Damage from use outside the product’s usage or storage parameters.
    • Damage from use of parts not sold by SISCO.
    • Damage from modification or incorporation into other products.
    • Damage from repair or replacement of warranted parts by a service provider other than a SISCO authorized service provider.
    • Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.
    4.0 1
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    Qiuo | 3/27/2025 7:28 PM
    Surprisingly Useful Tester for Everyday Water Checks
    Really handy little device! Been using this tester to check the water in my coffee machine and humidifier—works like a charm. Super quick readings, easy to switch between modes, and feels solid. Didn’t expect to use it this much, but now I grab it all the time.