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pH and ORP Meters
For Testing and Monitoring pH and ORP Levels in Liquids

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pH and ORP Meters

Extech EC500 Exstick II pH/Conductivity/Temperature Meter
EX-EC500
$159.99
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Extech InstrumentsExStik II - pH / Conductivity / TDS / Salinity & Temperature Meter
5-in-1 Meter Measures pH, Conductivity, Total Dissolved Solids (TDS) Salinity and Temperature
Measures 5 parameters including Conductivity, TDS, Salinity, pH, and Temperature using one electrode. 9 units of measure: pH, µS/cm, mS/cm, ppm, ppt, mg/L, g/L, °C, °F. Analog bargraph indicates trends. Memory stores up to 25 labeled readings. Adjustable Conductivity to TDS ratio from 0.4 to 1.0; 0.5 fixed Salinity ratio. RENEW feature alerts user when electrode needs replacement.
ExStik Waterproof Refillable pH Meter
EX-PH100
$99.99
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Extech InstrumentsExStik Waterproof Pen Style pH Meter
Flat Surface Electrodes Gives "On-the-Spot" pH Measurements with Large Display and Bargraph
Measures pH from 0.00 to 14.00pH. 0.01pH resolution and accuracy. Temperature measures from 23°F to 194°F (-5°C to 90°C). Smart chip predicts pH electrode performance with "RENEW" indicator when replacement is needed. Analog bargraph originates at neutral point (pH 7.00) and fluctuates to the left or right depending on the pH level. "CAL" indicator alerts user to recalibrate. 1, 2 or 3 point calibration recognizes buffer solutions. Automatic Temperature Compensation. Simultaneous display of pH and Temperature.
Extech PH110 Waterproof ExStik pH Meter
EX-PH110
$109.99
$108.55
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Extech InstrumentsExStik Waterproof Refillable Pen Style pH Meter
Refillable pH Electrode with Fresh Reference Solution Maintains High Accuracy
Refillable pH electrode is easily serviced. Fresh reference solution maintains high accuracy. Eliminates concern with shelf life. Flat Surface Electrode measures pH in liquids, semi-solids, and solids. No more electrode breakage or clogged junctions.
RENEW indicator tells you it’s time to replace your electrode. Eliminates guesswork. 1, 2 or 3 point calibration automatically recognizes buffer solutions. Automatic Temperature Compensation. Simultaneous display of pH and Temperature. Display indicates when the reading is stabilized. Waterproof design floats in water and protects the meter in wet environment. Interchangeable electrodes give you the versatility to change electrodes
Extech Waterproof RE300 Pocket ORP Tester
EX-RE300
Temporarily
Out of Stock
Extech InstrumentsExStick Waterproof Pen Style ORP Meter
Flat Surface Electrodes Gives "On-the-Spot" ORP Measurements with Large Display and Bargraph
Measures ORP from -999 to 999mV with high resolution of 1mV and ±4mV accuracy. Automatic electronic self calibration. Simulated analog bargraph displays change in ORP reading. Memory stores and recalls 15 readings and saves last calibrated value. Large 3-1/2 digit (2000 count) Digital display with bargraph. Easy to replace electrode modules can be used with any ExStik™ meter; (built in chip automatically recognizes the type of probe plugged in for specific measurements). Waterproof design floats in water and protects the meter in wet environment.
Palm PH Meter Extech PH220-C
EX-PH220-C
$169.99
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Extech InstrumentsBig Digit LCD Palm pH Meter with Cabled Electrode
Big Digit LCD Display in Rugged Housing with Cabled pH Electrode
Kit to include ATC pH polycarbonate electrode (12mm diameter) with 39" (1m) cable. Large LCD displays pH or mV and Temperature simultaneously. Microprocessor provides for Automatic Buffer recognition. Memory stores 15 readings. Automatic Temperature Compensation via Pt-100 sensor built into electrode. Unit is completely waterproof when electrode is connected to the meter. Rugged design for handheld or wall mount (magnetic back). Magnetic back panel offers optimum flexibility and convenience. Low Battery indicator and Auto Power off. Specifically designed for fast response measurement.
Extech PH220-S PH Meter, PALM PH with STICK ELECTRODE
EX-PH220-S
$169.99
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Extech InstrumentsBig Digit LCD Palm pH Meter with Stick Electrode
Big Digit LCD Display in Rugged Housing with Stick pH Electrode
Kit to include ATC pH stick type polycarbonate electrode (12mm diameter) for direct connection to meter. Large LCD displays pH or mV and Temperature simultaneously. Microprocessor provides for Automatic Buffer recognition. Memory stores 15 readings. Automatic Temperature Compensation via Pt-100 sensor built into electrode. Unit is completely waterproof when electrode is connected to the meter. Rugged design for handheld or wall mount (magnetic back). Magnetic back panel offers optimum flexibility and convenience. Low Battery indicator and Auto Power off. Specifically designed for fast response measurement.
Oyster™ pH/mV/Temperature Meter (Meter Only)
EX-Oyster-10
Temporarily
Out of Stock
Extech InstrumentsOyster-10 Series pH / mV / Temperature Meter Only
Exclusive Oyster Design Can be Used in the Lab or in the Field
Oyster-10 Meter Only. Large LCD built into adjustable "flip-up" cover displays pH or mV and Temperature simultaneously. Microprocessor based with splash proof housing and front panel tactile touch pad to slope and calibrate. Rugged design for handheld or benchtop use; neckstrap for "hands-free" operation. Measures: pH: 0.00 to 14.00pH, mV: -999mV to 999mV, Temperature: 32.0°F to 212.0°F (0.0°C to 100.0°C). Accurate to 0.02pH, 2mV, 0.8°F/0.5°C and resolution of 0.01pH, 1mV and 0.1°
Oyster Meter Kit - 0 to 14ph
EX-Oyster-16
$269.99
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Extech InstrumentsOyster-16 Series pH / mV / Temperature Meter Kit
Exclusive Oyster Design Can be Used in the Lab or in the Field
Complete Kit with Oyster-10 Meter, Mini pH Electrode, RTD Temperature Probe, Calibration Buffers & Case. Large LCD built into adjustable "flip-up" cover displays pH or mV and Temperature simultaneously. Microprocessor based with splash proof housing and front panel tactile touch pad to slope and calibrate. Rugged design for handheld or benchtop use; neckstrap for "hands-free" operation. Measures: pH: 0.00 to 14.00pH, mV: -999mV to 999mV, Temperature: 32.0°F to 212.0°F (0.0°C to 100.0°C). Accurate to 0.02pH, 2mV, 0.8°F/0.5°C and resolution of 0.01pH, 1mV and 0.1°
Heavy Duty pH/mV Temperature Meter Kit
EX-407228
$299.99
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Extech InstrumentsHeavy Duty pH / mV / Temperature Meter
Microprocessor Accuracy and Precision for Field or Lab Applications
Super Large LCD with contrast adjust. Dual display for pH or mV and Temperature. Degrees C/F switchable. Easy 2 point Slope and Cal adjustments at pH 4 and pH 7. Min, Max and Average with Recall. Auto Shutoff and Data Hold. Low Battery Indicator, Manual and Auto Temperature Compensation using temp probe. Kit includes meter, pH electrode, temperature probe, protective holster, 9V battery and carrying case.
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