TDS Water Testing Pen

A TDS (Total Dissolved Solids) pen measures the total amount of dissolved solids in water through electrical conductivity. When the electrodes come into contact with a water sample, they generate an electrical signal, and the resulting value reflects the impurity content. It is commonly used for testing drinking water, evaluating the effectiveness of water purifiers, and conducting rapid water quality screenings.
Selection
When selecting, focus on the measurement range covering common water quality values, ensuring accuracy meets usage requirements. Consider temperature compensation to adapt to different environments, and check calibration methods and battery types. Pay attention to electrode materials and protection ratings.

Terms

Instruments

Platinum Sensor ensures fast and stable measurement, supports 1-3 point calibrate and 0.1-1 adjustable TDS conversion factor, with automatic temperature compensation and end point locking function, Measurement range covers 0-20mS/cm conductivity and 0-10ppt salinity.

$ 165.00

With conductivity 0~ 19.99mS/cm Measurement range, accuracy +/- 1.0%, support TDS conversion factor and temperature compensation settings. Platinum-plated black ElectRode reduces Polarization effect, IP67 Protection Rating is suitable for use in a variety of environments.

$ 155.00

Combined ElectRode can simultaneously measure pH, conductivity, TDS, salinity and temperature, support one-button switching paraMeters; Conductivity Detector ElectRode platinum black to reduce Polarization effect, accuracy of +/- 0.01pH; with automatic temperature compensation and IP67 dustproof and waterproof design.

$ 213.00

With pH, conductivity, TDS and temperature Multi-ParaMeter measurement, pH range 0.0-14, EC range 0-3999 μS/cm, supports Automatic calibration and continuous monitoring, waterproof design and large screen display for easy operation.

$ 538.00

Using Platinum Sensor to ensure fast and stable measurement, with 1-3 point Adjustment, Measurement accuracy of 1% F.S., support automatic temperature compensation and replaceable ElectRode design.

$ 160.00

Multi-range design covers the range of 0~ 20ppt, equipped with platinum ElectRode to ensure fast and stable measurement, support 1-3 point calibrating and automatic temperature compensation function, can customize 5 system paraMeters.

$ 156.00

TDS value 7447ppm, capacity 480mL, PTFE bottle Encasement, versatility, suitable for daily solubility total solid calibrate, to ensure measurement accuracy.

$ 106.00

Support conductivity, TDS, salinity and resistivity Multi-ParaMeter measurement, conductivity range 0.000 μS/cm to 1000mS/cm, with intelligent end point determination and automatic temperature compensation function.

$ 741.00

With 5 measurement functions, support 1 to 5 point Conductivity Detector calibrating and automatic temperature compensation, can customize 13 paraMeters, equipped with 500 data storage and USB Communication interface, suitable for a variety of water quality paraMeters accurate measurement.

$ 667.00

Simultaneous measurement of conductivity, resistivity, TDS, salinity and temperature, support automatic temperature compensation and ElectRode diagnosis, Data storage 450 groups, with IP54 dustproof and waterproof rating, Measurement accuracy up to +/- 1.0% FS.

$ 514.00

Support conductivity 0.00μS/cm~ 100mS/cm and TDS 0~ 1000mg/L measurement, with manual/automatic temperature compensation and +/- 0.5% F. S error accuracy to ensure stable and reliable data.

$ 233.00

TDS value 744.7ppm, capacity 480mL, using PTFE bottle Encasement, suitable for daily soluble total solids calibrated.

$ 106.00

Measurement accuracy of 0.5% and automatic temperature compensation function, support 1 to 5 point calibrating and 500 data storage, optional ElectRode constant and TDS factor to ensure stable and reliable outdoor measurement.

$ 361.00

With 3.5-inch high definition LCD display and IP65 Protection Rating, it supports wide range measurement of conductivity 0.00μS/cm~ 200mS/cm and TDS 0.00mg/L~ 100g/L, providing automatic temperature compensation and intelligent endpoint determination function.

$ 448.00

Measurement accuracy of 0.5% and automatic temperature compensation, support for 1 to 5 point calibrated, optional ElectRode constant and TDS factor, extended memory to store 500 sets of data, built-in clock to GLP specifications.

$ 323.00

Articles