Purchase Qty. Reference FOB Price
1-499 Sets US$85.00
500-999 Sets US$82.00
1,000+ Sets US$79.00
Product Description
Power Supply: DC 5V RF distance 229.7ft/70m (open air) Wireless frequency: 433MHz±0.5MHz GSM bands: 850/900/1800/1900MHz 4 bands Wireless receiveing sensitivity: -110dBm External alarm siren: 110db Working environment: Temperature:-10ºC~+40ºC relative ...