Products > By Parameter > Multi-Parameter

PTTestr 35

Product Features

:: No need to change sensor every time you switch parameters One tester measures five parameters (measures pH, TDS, and Temperature)
:: Full pH range measurement at up to 2-decimal places.
:: Low, medium and high TDS ranges tester measures pure water!
:: Up to 5-point pH calibration and 3-point TDS calibration.
:: Adjustable TDS factor (0.40 to 1.00)
:: Temperature sensor housed within unique dome-shaped casing for faster ATC response and faster measurements.
:: ATC/ MTC option
:: Scroll-menu with four buttons control for stress-free navigation
:: Longest-lasting tester in the market! No tools required to replace sensor.
:: "One-press Parameter Toggle": Switching parameters is just a press of the button.
:: Certified IP67 Waterproof Lightweight tester even floats for easy retrieval.


General: Ideal for quick and accurate pH checks in pools and spas, aquariums and hydroponics operations, or anywhere frequent pH testing is required. pHTestr 30 meets requirements for many standard environmental and ASTM test methods

Industrial: Use for cooling towers, food processing water testing and process/wastewater testing in metal finishing, photo development, printing and chemical industries.

Educational: Useful in schools, many laboratory applications and ecology studies.


Product Specification

pH Range
0.00 to 14.00 pH
Resolution 0.01 pH
Accuracy 0.01 pH
pH Calibration Points Up to 5 (Auto)
pH Buffer Options USA, NIST
TDS Range 0 to 999 ppm
1.00 to 10.00 ppt
1 ppm / 0.01 ppt
Accuracy 1 % Full Scale
TDS Calibration Points
Up to 2 Points (Manual)
TDS Factor
0.40 to 1.00
Temperature Range 0.0 to 50.0 C / 32.0 to 120.0 F
Resolution 0.1 C/F
Accuracy 0.5C/ 0.9F
Temperature Compensation ATC / MTC
Non-Volatile Memory Yes
Auto-Off 8.5 mins after last key pressed (can be disabled)
LCD Display
Dual-display LCD (2.1 x 2.7cm)
Power 4 X 1.5 V "A76" Micro alkaline batteries
Batter Life > 150 hours
Dimensions; Weight
Boxed: 18.5 cm x 6.5 cm x 5 cm; 200 g

Order Information

Order No.

PTTEST35 Waterproof PTTestr 35
PCSENSOR Replacement sensor for waterproof PTTestr 35

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Also in the Testr 35
Multiparameter Series
PCSTestr 35
PCTestr 35

Download Brochure
Testr 35 Series Brochure

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Buffers & Calibration Solutions (480 ml)
Buffer Sachets
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Download Instruction Manual
Testr 35 Series Instruction Manual





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