This is the preferred method of testing Colloidal Silver to measure the PPM (parts per million) concentrations.
This meter will easily give you resonably accurate PPM readings so you always know what concentration of Colloidal silver you are actually making. It's quick and easy to use and many customers have checked its accuracy against laboratory certified analysis with no problems. Use it to check your distilled water before making Colloidal Silver, and check the finished PPM so you know what you have.
The Pure Water Tester (PWT) enables you to check the purity of your distilled or de-mineralized water in laboratory or industrial environments. The PWT is ideally suited for fields such as Printed Circuit Board washing, laundry, steam cleaning, checking car battery water and all areas where distilled, de-mineralized or pure water is used.
Low conductivity read-out on LCD display
Check quality of your distilled or de-mineralized water
Stick shape in a rugged housing
Long battery life
Maintenance-free use
Ideal anywhere distilled and pure water are used
The PWT is housed in a completely redesigned and much more durable case which provides excellent protection against harsh industrial environments. The new casing also provides a much larger LCD and is easier to handle with a more ergonomic shape and calibration trimmer on the side. The range of the Pure Water Tester is 0.1 to 99.9 µS/cm, which gives a resistivity read-out as low as 10 Mohm.
The following table shows a typical conversion of the PWT readings:
µS/cm Reading
Resistivity
mg/L of NaCl
99.9
10 Kohms
48
10
100 Kohms
4.3
1
1 Mohms
0.4
0.1
10 Mohms
0.04
Specifications:
Range:
0.1 to 99.9 µS/cm
Resolution:
0.1 µS/cm
Accuracy (@20°C/68°F):<
±2% Full Scale
Calibration:
Manual 1 point through trimmer
Temp. Compensation:
Automatic from 10 to 40°C (50 to 104°F)
Battery Type / Life:
4 x 1.4V / 150 hours approx. continuous use
Environment:
0 to 50°C (32 to 122°F); RH 95%
Dimensions:
175 x 41 x 23 mm (7.9 x 1.8 x 1")
Weight
78 g (2.7 oz.)
Our Hanna PWT meter is bundled with a bottle of Calibration Solution so you can calibrate your meter at any time to make sure the reading is as accurate as possible. Without the Calibration Solution, it's hard to know whether your measurements are accurate. With it, there's no guess work involved.
Why pay the price for a meter and then not know if the meter is accurately calibrated? That's why we have included the Calibration Solution with the meter.
How much does it Cost?
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All Credit Card transactions are protected by a secure server. Your personal information is encrypted and cannot be read by anyone. If you do not feel comfortable placing an order over the internet please feel free to fax it to 423-899-6660 or call our 24 hour phone order line at 800-975-9633.