ล้อกระดาษทรายเหล็ก 3 ชิ้น ขนาด 300 * 30 มม. หนา แข็ง/เหนียว สำหรับขัด/เจียร/ กระดาษทรายเหล็กสีแดง กระดาษทรายเหล็กสีเขียว

CDEBYTE E01-2G4M27SX nRF24L01P 2.4GHz internal PA LNA 4km SMD 27dbm GFSK SPI wireless module

RS485/RS232/RS422 to Ethernet Serial Server DC8-28V Modbus TCP to RTU MQTT Two-Way Socket Link CDEBYTE NE2 Series AT Command

RS485 Hubs Photoelectric Isolation Industrial DC 8-28 V CDEBYTE E810-R Series ESD Protection Power and Signal Isolation

LoRa 868MHz 915MHz LLCC68 Wireless Module 22dBm Long Range 5km CDEBYTE E220-900T22D SMA-K UART RSSI Transmitter Receiver DIP

SX1262 LoRa Module 868/915MHz CDEBYTE E22-900MM22S Ultra-Small Size 21.5dBm 7KM SMD RF Transceiver Module

RS485 to RJ45 Ethernet Serial Sever Rail Industrial Standard AC/DC/POE Data Transmission Transceiver CDEBYTE Serial Sever

SX1262 LoRa Wireless Maodule 32M High Precision TCXO E22-900M22S 22dBm 915MHz Long Range SMD RF Module Power Supply

RS485 Hubs Photoelectric Isolation Industrial CDEBYTE ESD Protection Power and Signal Isolation DC 8-28V

SX1268/SX1262 RF Transceiver Module 32M High-Precision TCXO LoRa Spread Spectrum 170/433/868/915MHz CDEBYTE E22-M SPI SMD

SX1280 SPI High-Speed LoRa Spread Spectrum Module 2.4GHz CDEBYTE E28-2G4M27SX Secondary Development 27dBm SMD Wireless Ranging