Nơi xuất xứ
Sichuan, China
Nhãn hiệu
Heltec Automation
LoRa Frequency
EU_433, CN_470_510, EU_863_870, US_902_928
LoRa Maximum output frequency
18dB ± 2dB
Flash
4MB(32M-bits) SPI FLASH
Battery type
3.7V lithium battery(SH1.25 x 2 interface)
Battery detection circuit
True
External device power control(Vext)
True
Size
50.2 x 25.5 x 9.74 mm