J
K
L
Insert 3 x LR03 AAA 1.5 V batteries in posi-
tion, respecting the polarity shown on the
bottom of the casing J.
Incorrect positioning of the batteries may
damage the unit.
If the indications on the display do not
appear within 10 seconds, press the reset
button R.
Attach the device to the base as shown in
the figure K.
To remove/replace the hatch, see
figure L.