Cardy Twin pH Meter
*Product Manual Available Below*
A 30ml bottle of pH 7.01 & 4.01 calibration solution come with this meter. We sell extra and replacement solutions for when you run out.
 Main Features:
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Measure samples as small as 150 µL
- Two-point autocalibration
- Automatic range selection
- Calibration and slope adjustment
- Includes a soft carrying case, batteries, and a solution kit containing calibrating solution and deionized water.
Use this pocket-size, waterproof meter anywhere. Either immerse tip in sample or place just a small amount of your sample directly on sample pad and you get fast and highly accurate pH results that are instantly displayed on the convenient 3-1/2-digit LCD. Two-point autocalibration combines with buffer recognition at pH 4.00 and 7.00 buffer values for simple, quick calibration.
The TWIN pH meter does everything you need. Its glass electrode sensor is protected by a guard that is slid open for measurements. The cartridge-type sensor is simple to replace should that become necessary. This meter is completely waterproof. It is powered by 2 CR2032 lithium batteries and has an automatic shut-off feature in case you forget. It has an easy to read LCD scale, and measures from pH 2 to pH 12 with an accuracy of 0.1 pH. The meter measures 6 1/2" long and weighs only 2 oz. Instructions are included. Be sure to also order some pH reference solution.
Recommended Uses:
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Measuring soil pH: To determine and adjust to the desired levell. Between 6.0 & 7.0 for most crops.
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Measuring plant leaf sap: 6.4 is what Bruce Tainios desired level is.
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Measuring urine and saliva: For health practitioners and also ideal for the Ream's Urea test.
- Measuring foliar and hydroponic fertilizers: The pH of fertilizers is often adjusted based on leaf and soil tests.
- Measuring water: To check acidity of rain water and drinking water.
- Measuring juices and milk
This meter can be used anywhere that highly accurate pH readings are required and where sample sizes are particularly small. Very useful not just for agricultural purposes, but anywhere that an alkaline or acidity value of a liquid is needed.
Cardy Twin pH Anatomy
1. Sensor guard
protects the electrode. The delicate
flat sensor is protected by a sensor guard to ensure safety during
use. To perform scoop measurement, just slide back the lid. 
2. The
replaceable sensor prolongs useful life
Cartridge-type
sensors are simple to replace.
3. CAL button
simplifies standardization
Takes all the
fuss out of reference calibrations. The Twin automatically makes the
calibration with just a push of this button.
4. Auto shutoff
saves batteries
If you forget
to turn off the Twin, after 60 minutes of non-use, the Auto-ShutOff
circuit automatically turns it off for you.
Digital Display:
 1. pH Readout
Measured pH
values are shown to 1/100 pH; calibration values to 1/100. (Readout
blinks when pH values is below 0 or above 14 pH.)
2. Battery warning
Alerts you to
low battery.
3. Temperature warning
The
"°C" blinks when the temperature exceeds the range 0 - 40°C
4. Calibration indicator
Lights up
during reference calibration.
5.
Stable-readout indicator
Lights up when
readout has stabilized.
Using the Cardy Twin pH
 Even if you
drop it in the water, there is nothing to fear. Its waterproof
structure makes the Twin ideal for carefree outdoor use and expands
in one stroke the scope of pH measurement activities.
*impervious to
water for 30 minutes up to a depth of 1 meter. Proper function is not
assured if immersed deeper than 1 meter
With Sliding Lid Open
 Immersion measurement
To take
measurement of water quality in rivers or lakes, just immerse the
sensor in the water and note the measurement results.
Scoop measurement
For hard to reach
places, just immerse the sensor in the solution and the sensor guard
will scoop up a sample. Lay the Twin flat to measure
With Sliding Lid Closed
 To measure
solids or powders
Just place the
sample directly on the sensor. Before measuring earth, powder, and
other solid samples with low moisture content, add a drop or two of
deionized water.
To measure in drops
Use a eye-dropper
to drop about 0.1 mL of the sample solution on the sensor.
To measure
rigid surfaces
To measure surface
pH, wipe the surface of the sample with a sampling sheet dampened
with deionized water and place the sheet on the sensor.
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MODEL
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Cardy Twin pH Meter
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Principle
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Glass Electrode
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Readout
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31/2-digit
LCD
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Measurement range
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pH 2 - pH 12
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Repeatability
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±0.1 pH
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Sample temperature
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5 - 40°C
(Actual temperature of sample is compensated for to give value at
ambient temperature.)
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Feature
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Two-point (pH7,
pH4) Calibration, Auto-Calibration(Calibration value backup),
Waterproof, Auto-shut off, Direct measurement.
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Dimensions
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165 mm x 29 mm
x 19 mm
6.5 in x 1.1 in
x 0.7 in
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Weight
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approx. 53 g.
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Power
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Two 3-volt
lithium batteries (Model CR-2032)
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Cardy Twin pH Meter Manual (127,08 KB)
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