Oakton pHTestr 50, pHTestr 50S, ORPTestr 50, PCTSTestr 50 Data Sheet
...setting the standard again and again
®
Oakton® 50 Series
pH Pocket Testers
New design stands up to the challenges of
measuring water quality—even stands upright
The Oakton pH pocket testers stand up to everyday use,
harsh environments, and the test of time. The testers can
even stand upright when the cap is used as the stabilizing
base. When you select one of these pH testers, you get a
pocketful of useful features and benefits.
- Double-junction pH electrode sensor is dependable, long lasting,
and easy to maintain—ideal for use with sulfides, heavy metals,
organics, Tris buffer, or protein solids
- Easy-to-replace sensor module lets you use the tester body over
and over again
- Intuitive interface has self-diagnostic error messages, and
battery-life and stable reading indicators
- Simple operation at your fingertips with MENU button, 1-button
calibration, and HOLD button to freeze readings for recording
®
- Valox
- Leakproof cap functions as a sample cup, sensor hydrating cup,
- Uses common AAA batteries, and auto shutoff extends
body resists most chemicals and is rugged, dustproof,
waterproof, and IP67 rated
and stabilizing base to stand the meter upright
battery life
Easily replace sensor module
with a twist—no tools required
1-888-4OAKTON (1-888-462-5866) • 1-847-549-7600 • info@4oakton.com
Cap Design: versatile and functional
Tester stands upright
with wide, stable
base
Leakproof: use to
store and keep
electrode hydrated
Use as a sample
cup to calibrate or
measure
Applications
Agriculture | Aquaculture & Aquariums | Cooling Towers | Education | Environmental Monitoring | Food & Beverage |
Hydroponics | Laboratories | Manufacturing | Pools & Spas | Printing | Water & Wastewater Treatment
pHTestr® 50
Pocket Tester
- Automatic temperature compensation
ensures accurate reading in varying
environments
- Up to 3-point pH calibration with NIST
or USA autobuffer recognition
- EPA compliant
ORPTestr® 50
Pocket Tester
- Double-junction platinum electrode ideal for
checking dirty water, heavy metals, sulfides,
and organics
- Wide mV range for variety of common appli-
cations including industrial waste treatment,
oxidation of cyanide, pulp bleaching, bleach
manufacturing, and water sanitation
pHTestr® 50S Spear-Tip
Pocket Tester
- Unique junction design increases electro-
lyte flow providing greater contact between
sample and reference for fast, stable readings
- Up to 3-point pH calibration with NIST or USA
autobuffer recognition
- Rugged spear tip penetrates soft solids and
semisolid materials
PCTSTestr™ 50
Multiparameter
Pocket Tester
- Versatile—measures pH, conductivity, TDS,
and salinity
- Compatible with a wide range of samples
with long-life pH electrode and stainless steel
pin-style conductivity sensor
- Up to 3-point pH calibration with NIST or
USA autobuffer recognition, user-adjustable
temperature coefficient, and self-adjusting
TDS and salinity factors
Includes: protective plastic storage case (except pHTester 50S), lanyard, and batteries.
Model pHTestr 50 pHTestr 50S ORPTestr 50 PCTSTestr 50
Catalog number
Range –1.00 to 15.0 pH –1.00 to 15.0 pH –1000 to 1000 mV
Resolution 0.01 pH 0.01 pH ±1 mV
Accuracy ±0.01 pH ±0.01 pH ±2 mV
Temperature compensation Automatic, 32 to 140°F (0 to 60°C) Manual, 32 to 140°F (0 to 60°C) Manual Automatic, 32 to 140°F (0 to 60°C)
Calibration Up to 3 points Up to 3 points 1 point, offset ±200 mV Up to 3 points (pH, conductivity and TDS)
Buffer recognition
Temperature range 32 to 140°F (0 to 60°C) 32 to 140°F (0 to 60°C) 32 to 140°F (0 to 60°C) 32 to 140°F (0 to 60°C)
Temperature resolution 0.1°F/°C 0.1°F/°C 0.1°F/°C 0.1°F/°C
Temperature accuracy
Power Four AAA 1.5 V batteries (included) Four AAA 1.5 V batteries (included) Four AAA 1.5 V batteries (included) Four AAA 1.5 V batteries (included)
±0.9°F (0.5°C) + 1 LSD from 32 to 122°F
(0 to 50°C); ±1.8°F (1.0°C) + 1 LSD from
WD-35634-15 WD-35634-25 WD-35634-45 WD-35634-35
pH: −1.00 to 15.0
Conductivity: 0.0 to 200.0 μS,
200 to 2000 μS; 2.00 to 20.00 mS
TDS: 0.0 to 100.0 ppm, 100 to 1000 ppm;
0.10 to 10.00 ppt (TDS factor 0.5)
Salinity: 0.00 to 10.00 ppt
Conductivity: 0.1 μS, 1 μS; 0.01 mS
TDS: 0.1 ppm, 1 ppm; 0.01 ppt
Salinity: 0.10 ppt
Conductivity: ±1% full-scale
TDS: ±1% full-scale
Salinity: ±1% full-scale
USA 4.01, 7.00, 10.01;
NIST 4.01, 6.86, 9.18
122 to 140°F (50 to 60°C)
USA 4.01, 7.00, 10.01;
NIST 4.01, 6.86, 9.18
— —
—
USA 4.01, 7.00, 10.01;
NIST 4.01, 6.86, 9.18
±0.9°F (0.5°C) from 32 to 122°F
(0 to 50°C); ±1.8°F (1.0°C) from
122 to 140°F (50 to 60°C)
pH: 0.01
pH: ±0.01
1-888-4OAKTON (1-888-462-5866) • 1-847-549-7600 • info@4oakton.com
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