A diagnosis function: detect it by DU100, save installation and after-sales maintenance time;

Optional exist permanent function: infinite maintain existing relay, prevent fencing machine/electric door closed in advance, avoid such vehicles damaged;

Coil insulation protection: provide lightning or other possible moment damaged protection for coil;

Coil frequency instructions: internal hint of adjacent coil/detector between possible crosstalk (interference);

Sensitivity adaptive (ASB) : reliable testing trailer/hang trailer with high chassis car, automatically adjust sensitivity to be the best;

Detection filter functions: allow bicycle and strollers through without being detection.

Output way: switch.