Uniglobal Business

The COM-80 is easily the most advanced economically priced, reliable EC/TDS meter on the market. With its versatility and durability, it is ideal for testing applications such as hydroponics & gardening, pools & spas, aquariums & reef tanks, water ionizers, drinking water and more.

• Measures electrical conductivity (EC), and total dissolved solids (TDS). Excellent for nutrient testing
• Four scales: EC: µS, mS; TDS: ppm, 0.5 (NaCl) & 0.7 (442™)
• Automatic Temperature Compensation (ATC)
• Water-resistant
• Digital Calibration (push button) to any point within the meter’s range
• 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 COM-80 meter is calibrated with a 1413 µS solution
• Includes a protective cap and batteries

1. Ideal for commercial use. Includes a carrying case with belt clip.
2. Highly efficient and accurate due to its advanced microprocessor technology.
3. Hold Function: saves measurements for convenient reading and recording.
4. Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries.
5. Built-in digital thermometer
6. Power source: 2 x 1.5V button cell batteries
7. Battery life: 1000 hours of usage

With our vast experience & knowledge in this field, we are engaged in providing a quality-assured range of Digital Pocket TDS EC Meter.

The COM-100 is a professional grade level EC/TDS/Temp meter ideal for all water quality testing, hydroponics, water purification applications, wastewater regulation, aquaculture, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment and more

• Measures electrical conductivity (EC), total dissolved solids (TDS), and temperature.
• UPGRADED: Four scales: µS, mS, ppm 0.5 (NaCl) Scale & 0.7 (442™) Scale
• Automatic Temperature Compensation (ATC) using three temperature coefficients
• Waterproof housing (IP-67 rating)
• Digital Calibration (push button) to any point within the meter’s range
• Auto-off function, data-hold function and low-battery indicator
• Display: large and easy-to-read LCD screen includes simultaneous temperature reading.
• Replaceable Sensor (model SP-C1)
• Factory Calibrated: The COM-100 meter is calibrated with a 1413 µS solution.
• UPGRADED: Includes translucent cap, 2 (AAA) batteries and lanyard.

The HM Digital TDS-3 Meter is a trusted, original product designed for precise measurement of Total Dissolved Solids (TDS) in water.


Ideal for checking water purity in RO systems, aquariums, hydroponics, and more, it offers a wide measurement range of 0–9990 ppm with ±2% accuracy.

Featuring a digital LCD display, built-in thermometer, and Automatic Temperature Compensation (ATC), it ensures reliable readings in varying conditions. Its compact, handheld design and hold function make it convenient for everyday use. Backed by HM Digital’s reputation for quality, the TDS-3 Meter is a must-have tool for anyone serious about water quality monitoring.