Int & Ext Switch; Sim Card Installation - GPS Tracker TK 104-B User Manual

Note:
Please install SOS button on the hidden place driver can touch.
2. INT & EXT switch
Switch to INT to change to use internal antenna; switch to EXT to change to use external
antenna

3. SIM card installation

3.1 Open the waterproof sealant and insert SIM card as following picture shows, push it to
the end to install SIM card correctly. The SIM card will pop up if press it after installed.
7