Nta:
▶ GPS nrhiav, nrhiav chaw saib xyuas
▶ GPRS / 4G cov ntaub ntawv xa mus rau lub sijhawm
▶ Cov xwm txheej tshwj xeeb pab txhawb cov ncauj lus kom ntxaws txog kev saib xyuas
▶ Electronic railing, tswb intrusion
▶ 5 hom LED teeb pom kev zoo (ci, ib txwm, qis, strobe, SOS teeb)