Purchase Qty. Reference FOB Price
2-49 Pieces US$28.00
50-99 Pieces US$26.00
100+ Pieces US$25.00
Product Description
Input voltage: DC5V (powered by USB Type-c standard interface) Operating current: <100mA Alarm current: <300mA Wireless radio frequency: center frequency 433.92MHz, modulation mode ASK, oscillation impedance 330K Coding format: reception supports 1527/2262 GSM standard: 2G/4G ...