... self-diagnosis with error indication; 5) All weather design, plastic housing;6) 4*MF1 analog sensor, 21.5mm plastic flat, 2.5m ... Packing Colour Box:Installation Sketch: Why us, Gold supplier authenticated by ALIBABA Safe and easy to buy from us. Trade Term ... :Payment: 30% deposit By T/T, Western Union, Paypal, ESCROW, 70% before delivery. Production ...