OHAUS ST20M Manuel D'instructions page 4

The electrode is replaceable.
Model
ST20M-B
ST20M-C
Description
ST20M-B Electrode
ST20M-C Electrode
Waterproof Pen Meters
pH Range
Conductivity Range
pH Resolution
Conductivity Resolution
pH Accuracy
Conductivity Accuracy
Battery
Dimension
Weight
Auto-off
Ambient Temperature
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Content
ST20M-B pen meter (electrode included),
pH buffer powder pH4.01 / pH7.00 / pH10.01
ST20M-C pen meter (electrode included),
pH buffer powder pH4.01 / pH7.00 / pH10.01
Item No.
30393203
30393204
ST20M-B
0.00 – 14.00 pH
0-1999 μS/cm
0.01 pH
1 μS/cm
± 0.05 pH
± 2% FS
4 x 1.5V
185 x 42 x 37 mm
105 g
After 6 min no operation
0~50 °C (32-122 °F)
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Item No.
30393199
30393200
ST20M-C
0.00 – 14.00 pH
0-19.99 mS/cm
0.01 pH
10 μS/cm
± 0.05 pH
± 2% FS
4 x 1.5V
185 x 42 x 37 mm
105 g
After 6 min no operation
0~50 °C (32-122 °F)
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