Purchase Qty. Reference FOB Price
1-9 Sets US$200.00
10+ Sets US$120.00
Product Description
GSM-AUTO-4G AC version GSM / 3G / 4G relay remote relay controller Double channel big power output RELAY Remote switch box 4G Remote control board, Working with 4G/3G and GSM cell phone network 2 Relay channel,each at 220V/30A power Water-proof box for outside project PC Program adapter and ...