TDSTestr 11

  • Warranty This product is covered by a 2 year meter warranty
  • Valox Sensor Casing Superior chemical durability
  • Reduced Operating Costs Tester body can be used again and again with user-replaceable sensor
Product Options


If you require a quick and easy to use pocket tester to measure Total Dissolved Solids in °C or °F the Eutech TDSTestr® 11 is the perfect option. It now has a wider measuring conductivity range from pure water to waste water as well as measuring up to 20.00ppt with an accuracy of ±1% full scale accuracy. This long lasting device has sensor elements made with industrial grade SS316 to ensure superior chemical durability to protect against harsh samples. User-replaceable sensors reduce operating costs, with the advantage of the body being able to be used again and again. The Eutech TDSTesttr® 11 is rugged and waterproof to IP67 standards so the tester keeps good even in wet conditions.

Dual range options with selectable or auto-ranging options enable more media measureability with one tester, °C or °F options can be selected easily by the press of a button and the non-volatile memory retains calibration settings even if the batteries run out. Featuring a large screen which displays temperature, display mode, Automatic Temperature Compensation and battery level make this tester ideal for on-the-go measuring.

Manufactured by: Eutech Instruments
Model: TDSTestr 11

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance


Water and wastewater treatment
Boiler blow-down
Electroplating rinse tanks
Drinking water
Printing Industry
Aquariums and fish farms
Swimming pools


Range .. to 1000 ppm
.. to 10.00 ppt
Resolution 10 ppm
0.10 ppt
Accuracy ±1 % of full scale
ATC Yes (0 to 50 °C / 32 to 122 °F)
Temperature Coefficient 2 % per °C, fixed
Calibration Point 2 manual
Temperature Display Yes
Range 0 to 50.0 °C / 32.0 to 122.0 °F
Resolution 0.1 °C / 0.1 °F
Accuracy ±0.5 °C / ±0.9 °F + 1 LSD
Calibration ±5.0 °C / ±9.0 °F
Non-Volatile Memory Yes
Auto Power-Off 8.5 minutes after last key pressed
Power Requirement 4 x 1.5 V ‘A76’ micro alkaline batteries (included)
Battery Life More than 150 hours
Dimension / Weight Tester : 16.5 x 3.8 cm ; 90 g
Boxed : 18.5 x 6.5 x 5 cm ; 200 g



TDS is only relevant in freshwater systems as salinity will dramatically increase the conductivity and therefore apparent TDS.
TSS are particles that are larger than 2 microns found in the water column. Anything smaller than this is called a dissolved solid.