Omron ZN-DPX21-S Series User Manual page 26

(1) Inserting SD memory card
Click
[1] Insert the SD memory card into SD card slot with the metal terminal face up.
[2] Insert the SD memory card until it clicks.
[3] "SD" will be displayed on the display.
(2) Removing SD memory card
[1] Push the inserted SD memory card as far as possible until it clicks.
[2] When you take off your hand from the card, it will come out. Be careful not to drop it.
[3] "SD" on the display disappears.
Important
 If the SD memory card has not been formatted yet, format it before inserting into the SD
card slot.
 For the page to download the formatting software for SD memory cards, refer to the
following URL.
https://www.sdcard.org/downloads/formatter/
"SD" turns ON.
2-5
2. Exterior Features