What's New
OAKTON Products
Ask Our Experts
Request Literature
Distributor Program
Contact Us
Spanish Page

Follow us on:

Like us on Facebook   Watch us on You Tube


CTSTestr™ 50P Pin-Style Waterproof Pocket Conductivity/TDS/Salinity Tester, Premium 50 Series

Reliable 3-in-1 tool measures conductivity, TDS, and salinity

  Redesigned leakproof cap functions as a sample cup and stabilizing base to stand the meter upright
  Automatic temperature compensation ensures accurate reading in varying environments
  Easy-to-navigate interface for quick setup and calibration

These CTS testers make measuring water quality easier and faster. The large display offers a better viewing angle, has indicators for battery life, readiness, and calibration, and shows both the parameter and temperature readings at the same time. The testers are available in a pin type or a cup style measuring sensor and measure conductivity, TDS and salinity all in one instrument.

To enhance field use, the cap was redesigned to be leakproof and can be attached to the top of the meter when not being used—no more lost caps! The cap features a fill line, so you know how much sample you need for an accurate reading when using the cap as a sample cup. The wider design provides a base to keep the meter upright for hands-free measurements. The keypad features fourth key to simplify menu navigation while keeping convenient one-touch calibration. The housing is compatible with lanyards to prevent losing or dropping, but is still waterproof.

TDSRange 0.0 to 1000 ppm; 0.10 to 10.00 ppt
TDSResolution 0.1 ppm, 1ppm, 0.01 ppt
Measures Conductivity, TDS, Salinity, and Temperature
Range CON: 0.0 to 2000 μS; 2.00 to 20.00 mS Salinity: 0.00 to 10.00 ppt
Resolution CON: 0.1 ppm, 1 ppm; 0.01 ppt Salinity: 0.10 ppt Temperature: 0.1°C / 0.1°F
Accuracy ±1% full-scale
Calibration Up to 3 points (pH, conductivity and TDS); 1 point (salinity)
Temperature 32 to 140°F (0 to 60°C)
Power Four AAA 1.5 V batteries (included)

click on image to enlarge

Model # Description Suggested List Price Qty  
WD-35634-55 Oakton® CTSTestr™ 50P Pin-Style Waterproof Pocket Conductivity/TDS/Salinity Tester, Premium 50 Series $135.00
WD-35634-57 Oakton® Replacement Conductivity Sensor for CTSTestr™ 50P $47.00

To add items to the Quote Cart, enter a quantity in the Qty. column and click the Add button.
We will forward your Quote Cart list to a selected OAKTON Instruments Distributor, who will
reply with pricing, quantity discounts (if applicable), and availability information.

Sorry, but the Quote Cart is not an order form or shopping cart. If you need to order
immediately, please contact us for a direct referral to one of our selected OAKTON Distributors.

OAKTON Instruments: setting the standard, again and again™
OAKTON Instruments P.O. Box 5136, Vernon Hills, Il USA 60061 info@4oakton.com