• The Apera Instruments TDS20 Value Pocket TDS Tester is simply the most reliable pocket conductivity ppm tester/meter with the best value for all kinds of routine testing, including tap water/drinking water testing, agriculture, aquaculture, swimming pool, education, etc.

  • The unique platinum black conductivity probe technology ensures wide range measurement with accuracy and consistency.
  • An ultra clear 180˚ viewing angle screen with temp./TDS value dual display and indications of completed auto calibrations and stable readings.
  • Complete kit with calibration solutions (1413 µs and 12.88 mS), AAA batteries, and a lanyard all in a rugged carrying case.
  • 1-2 points auto calibration and 0 to 50˚C auto temp. compensation, ±1% F.S accuracy with 0 to 20.00 mS/cm wide conductivity measuring range
  • Self-diagnosis with an out-of-range warning and incorrect calibration reminders.
  • IP67 Water-proof and dust-proof, floats on water so no need to worry if you drop it in the water by accident.
  • 200 hours' continuous operation powered by AAA batteries (with low power warning and auto power off in 8 min if no operation).

   

  Meter's Technical Specs
  TDS	Range	0 to 100.0 ppm, 0 to 1000 ppm, 0 to 10.00 ppt
  	Resolution	0.1/1 ppm; 0.01 ppt
  	Accuracy	±1% F.S
  	Calibration Points	Automatic 1 to 2 points
  	Temperature Compensation	Auto Temperature Compensation 0 to 50 °C (32 to 122°F)
  Temp.	Range	0 to 50°C (32 to 122°F)
  	Resolution	0.1°C
  	Accuracy	±0.5°C
  LCD		180° Viewing Angle LCD
  Stable Reading Indication		Smiley Face icon
  Low-Battery Warning		Battery icon flashing, reminder of battery replacement
  Self-Diagnosis		Yes
  Heads-Up Function		No
  Auto. Power-Off		Yes, auto power-off in 8 minutes without operation
  Waterproof Rating		IP67; Floatable
  Power		DC3V, AAA batteries*4
  Battery Life		Continuous operation up to 1000 hours
  Dimensions& Weight		Tester: (40*31*178) mm/ 107g With case_(190*165*40) mm/ 438g
  Electrode's Technical Specs
  Application		Regular water solution testing, such as pools and spas, hydroponics, tap water, drinking water, water treatment, waste water treatment, aquaculture, etc.
  Type of Sensor		BPB (Brush-Resistant Platinum Black)
  Replaceable		No
  Temperature sensor		Yes
  Range		0.1 μS to 20.00 mS
  Temperature Range		0 to 50°C (32 to 122°F)

Founded in 1991, Shanghai San-Xin Instrumentation Inc. specializes in research, manufacture and sale of electrochemical devices and electrodes ranging from pH, ORP, conductivity, ISE, DO to water hardness, turbidity, acid-alkali meters and electrodes. Our factory is located in Cao He Jing High-Tech Park, Shanghai, covering 1200 square meters.

San-Xin adheres to the philosophy of "honesty, sincerity, persistence and perfection" and the spirit of "credit, faith and trust" in pursuit of sustained development. With efficient technology innovation, San-Xin's products and technology always mantain at the world-advanced level and ahead of counterparts in the domestic market. Up to now, San-Xin has successfully developed MP500 series of laboratory electrochemical devices, SX700 series of waterproof portable electrochemical instruments and SX600 series of waterproof pen testers. Newly developed benchtop and portable water hardness meters adopt electrode measurement and are the unique water hardness meters in the world which have won good reputation.

With 33 years of its history, San-Xin always commits to brand development. Nowadays, San-Xin brand is renowned in the domestic market. Moreover, San-Xin series of products have been exported to many other countries and regions around the world. San-Xin brand is expanding and penetrating throughout the global market.

ISO 9001:2000 certified, San-Xin has a strict quality management system. All the products are CMC and CE marked. San-Xin has outstanding research capability, advanced technology and high quality on the one hand and provides professional technique supports and after-sales service on the other. Backed by its core technology and innovation, San-Xin has established successfully long-term cooperation with many well-known international companies whom San-Xin provides with OEM.

San-Xin will further implement the brand development strategy, promote quality management system and information procedure, enhance customer satisfaction and create a win-win situation between San-Xin and customers. San-Xin is developing and striving to achieve new leaps and more success.