The membrane part is replaceable.
Order Information
Model
Description
ST20D
Polargraphic waterproof pen DO meter
Accessory:
30022083
Replaceable Electrode for ST20D
30022084
Membrane part with electrolyte for ST20D
30059257
DO Zero Oxygen Chemical
In conformance with the European Directive 2002/96/EC on Waste Electrical and Electronic Equipment (WEEE) this device may not be disposed of in domestic waste. This also
applies to countries outside the EU, per their speci c requirements. Please dispose of this product in accordance with local regulations at the collecting point speci ed for electrical
and electronic equipment. If you have any questions, please contact the responsible authority or the distributor from which you purchased this device. Should this device be passed
on to other parties (for private or professional use), the content of this regulation must also be related. Disposal instructions in Europe are available online at
europe.ohaus.com/europe/en/home/support/weee.aspx. Thank you for your contribution to environmental protection.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment o and on, the user is encouraged to try to
correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna, increase the separation between the equipment and receiver or
consult the dealer or an experienced radio/TV technician for help.
Speci cation
Waterproof Pen DO Meter
Item NO.
Measurement range
30073986
Resolution
Accuracy
Battery
Dimension
Weight
Auto-o
Ambient temperature
Materials
ST20D
0.0 – 19.9 mg/L
0.1mg/L
± 0.5 mg/L
4 x 1.5V
183×45×35mm
90g
After 10 min no operation
5~45 °C(41-122°F)
ABS
*30222049*