FS: pH meters and TDS/Conductivity meters

We offer the following pH meters and TDS/Conductivity meters. All
items are new and unopened.
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Labmate(TM) Hand-Held pH Meters:
Range 0.0-14.0 pH
Resolution 0.1 pH
Accuracy (+/-) 0.1 pH
Operating temp: 5-50 degrees Celcius (41-122 degrees F)
Power Supply DC4x1.5v (Button Battery)
Battery Life 1,000 hrs
Size (LxWxH) 142 x 28.8 x 15 mm (5.58x1.14x0.59 inch)
Weight 70 g (2.47 oz)

There are two different models to choose from:
1) Model P-II
Price: $31.50

2) Model P-III (Automatic Temperature Compensation)
Price: $39.

TDS/Conductivity Meters:
Accuracy (+/-) 2% Full Scale
Temperature 0-50 degrees Celcius (32-122 degrees F)
Size 150x32x16 mm (5.91x1.26x0.63 inch)

There are four different models to choose from:

1) Model DDS-ppm
Range 0-1999 ppm
Resolution 10 ppm
Price $42.

2) Model DDS-ppt
Range 0-10 ppt
Resolution 0.01 ppt
Price $45.

3) Model DDS-uS/cm
Range 0-1999 uS/cm
Resolution 10 uS/cm
Price $42.

4) Model DDS-mS/cm
Range 0-19.99 mS/cm
Resolution 0.01 mS/cm
Price $45.

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Please email electronics123 at hawaii dot com if you're interested.

Thank you.

Kevin