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Oakton PTTestr 35 Waterproof Multiparameter pH/TDS Tester
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Product Description:

The Oakton 35425-05 Oakton Multiparameter 35-Series PTTestr 35 is a handheld, waterproof, and dustproof pocket metre that measures pH, conductivity, and temperature and floats, if dropped in water. A portable pocket metre is commonly used to measure the pH of substance in hydroponics, agriculture, industrial process cheques, water treatment, and swimming pools. This metre features ATC for accurate readings in fluctuating temperatures, and push-button calibration capabilities for a wide range of results. It has stainless steel, pin-type conductivity sensors for durability and compatibility with a wide variety of samples. The metre’s waterproof and dustproof housing has IP67-rating for protection against solid objects or liquids. The testr has a long-lasting sensor with Polyvinylidene Fluoride (PVDF)-protected reference junction with polymer gel for longer lifespan. The metre has a large, upright, dual-line LCD screen for ease of viewing, a hold function which freezes readings for recording, and an auto shut-off to extend the life of the batteries. It has a click-lock battery cover for battery access to replace batteries without tools.

The 35425-05 pocket metre has ATC from 0 to 50 degrees C (32 to 122 degrees F), or manual ability, and an operating temperature range of 0 to 50 degrees C (32 to 122 degrees F), resolution 0.1 degree, + or - 0.5 degrees C (+ or - 0.9 degrees F). It has 1-point temperature 2-point TDS, and 3-point pH calibration capability range. pH range is 0.0 to 14.0, resolution 0.1, accuracy + or - 0.1. TDS range 0 to 1000 ppm; 1.00 to 10.00 ppt, resolution 1 ppm; 0.01 ppt, accuracy + or - 1% full-scale. Its dimensions are 1.25 (w) x 6.5 (h) inches (3.8 x 16.8 cm) and it weighs 100mls. The testr works with four 1.5-V alkaline batteries (not included) for up to 250 hours of continuous use (Eveready A76 or LR44 replacements).

pH testers measure the acidity or alkalinity of a substance and are commonly used by researchers, manufacturers, and hobbyists in aquaculture, agriculture, hydroponics, wine-making, and water-testing, and for scientific applications. TDS such as salts and minerals contribute to the conductivity of a solution. A TDS metre measures the conductivity and converts it to a TDS reading.

Oakton Instruments manufactures an array of scientific instruments for research, industrial, and educational uses. Since 1991, Oakton has distributed a wide variety of instruments such as metres, electrodes, and transmitters. Oakton is based in Vernon Hills, IL, and has facilities in Europe, Asia, and China.

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  • Metre 35425-05
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