The TDS-3 Portable Digital TDS Meter is a handheld device used to measure the Total Dissolved Solids (TDS) in water. TDS refers to the concentration of dissolved substances such as salts, minerals, metals, and other organic and inorganic compounds in water. This meter is commonly used to test the purity or quality of water, such as from drinking sources, aquariums, pools, or water filtration systems.

TDS-3 Handheld TDS Meter Ideal for Water Purity Testing 

• Hold Function
• Auto-off Function (After 10 min.)
• Built-in digital thermometer
• Includes a carrying case with a belt clip
• Factory calibrated with a 342 ppm NaCl solution. (The meter can be recalibrated with a mini-screwdriver.)

Specifications of TDS-3 Digital TDS Meter

• TDS Range: 0 – 9990 ppm (mg/L)
• Range: 0 – 80 degrees Celsius
• Resolution: 0-999: 1 ppm; 1000-9990: 10 ppm (indicated by an ‘x10’ icon)
• Temperature Resolution: 0.1 degree Celsius (Celsius only)
• Accuracy: /- 2%
• EC-to-TDS Conversion Factor: NaCl (avg. 0.5)
• ATC: Built-in sensor for Automatic Temperature Compensation of 1 to 50 degrees Celsius (33 to 122 degrees Fahrenheit)
• Power source: 2 x 1.5V button cell batteries (included) (LR44 or equivalent)
• Battery life: 1000 hours of usage
• Dimensions: 15.5 x 3.1 x 2.3cm (6.1 x 1.25 x 1 inches)
• Weight with case: 76.5g (2.7 oz)
• Weight without case: 56.7g (2 oz).

Details of TDS 3 Portable Digital TDS Meter for Water Purity Tester

General Applications of the Digital TDS Meter:

• Water Filtration Systems: To check the effectiveness of water filters or reverse osmosis systems.
• Aquariums and Hydroponics: Ensure that the water quality is suitable for plants or fish.
• Drinking Water: Check the purity of tap water, well water, or bottled water.
• Swimming Pools & Spas: To ensure the balance of water chemicals and quality.

How to Use IT:

1. Turn on the Meter: Power it on using the button, typically located on the top or side of the unit.
2. Immerse the Probe: Place the meter’s probe into the water sample you’re testing. Ensure the probe is fully submerged for accurate results.
3. Wait for the Reading: Allow the meter a few seconds to stabilize and then read the TDS value on the display.
4. Clean the Probe: After use, rinse the probe with clean water to avoid any contamination or buildup on the sensor.