8 Tips and assistance
39
Question Possible causes/solution
xxx is shown instead of the
reading.
Reading cannot be calculated.
> Check parameter settings for
plausibility.
Humidity measuring
function: No readings from
the radio probe are shown.
Radio probe not logged on or
sources of interference in the radio
transmission:
> Check possible causes, see
Radio… (testo 880-3 only)
page 32.
If we could not answer your question, please contact your
dealer or Testo Customer Service. For contact data, see back
of this document or web page www.testo.com/service-contact
8.2. Accessories and spare parts
Description Article no.
Radio humidity probe (for testo 880-3)
3
consisting of radio handle and plug-in
humidity probe head:
• Radio handle version 869.85 MHz,
approval e.g. for DE, ES, IT, FR, GB
• Radio handle version 915.00 MHz,
approval e.g. for CA
• Plug-in humidity probe head
0554 0189
0554 0191
0636 9725
Lens protection glass 0554 8805
Sunshield 0554 8806
Rechargeable battery. 0554 8802
Desktop charging station 0554 8801
Tripod 0554 8804
Mains unit 0554 8808
SD card 0554 8803
USB cable 0449 0047
3
Radio probes and modules may only be used in those countries in which
they are permitted (see radio probe instructions for use).
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