Lubeby Smart LoRa611II TTL Interface Wide Voltage High Rate 160mW Industrial Uart LoRa Module Frequency:868 MHZ X 5 PCS It also supports AC220V power

It also supports AC220V power supply

The sensor we use is a high-precision contact linear position sensor which is suitable for all kinds of speed-based training equipment

these glasses can help improve vision through stroboscopic eyewear technology

Communication indicator light of two serial port: RX/TX

Lubeby Smart LoRa611II TTL Interface Wide Voltage High Rate 160mW Industrial Uart LoRa Module Frequency:868 MHZ X 5 PCS It also supports AC220V powerOrder sample from Amazon: Mass qty order inquiry: info@cooltech hk. com Package : 5 pcs * LORA611ii Features of LLCC68 LoRa Module LoRa611II AES128 data encryption method No blind zone without distance limitation Single module open transmission distance of 5Km @ low rate Frequency band: 433 470 868 915 MHz for option Up to 40 communication channels in the same frequency band Diversified serial port parameters Operating voltage range: 3. 3~ 5. 5 V LBT