KYORITSU 3023 - Manual (Page 21)

9-1 Case lid
Case lid can be fit under the Housing case while making measurement.
(1) Unhook and open the Case lid.
(2) Turn it 180 degrees.
Put the Case lid under the Housing case.
(3) Hook it on to the Housing case.
9-2 Neck strap and Cord case
This instrument is equipped with a strap to suspend from the neck to
allow both hands to be used freely for easy and safe operation.
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9．Notes on Housing case and accessories
Fig. 14
Fig. 15