RS485 RS232 USB Wireless Transceiver 433M 868M Transmitter Receiver Module
$ 22.44
Description
RS485 RS232 USB Wireless Transceiver 433M 868M Transmitter Receiver Module. RS485 < -- > RS485, RS232 < -- > RS232, USB < -- > USB. USb RS485, USb RS232, RS485 RS232. They work as well as wired RS485 bus. The master device sends data and the slave device receives data. RS485 RS232 USB Wireless Transceiver 433M 868M Transmitter Receiver Module Item Description Features: 1. Multiple specifications can be selected, RS485/RS232/USB three products only different interfaces, the same function 2. Can communicate with each other, mixed use 3. Can send data to each other 4. Can be transmitted over long distances 5. Widely applicable, multiple occasions can be used. Specification: Working voltage: 4.8V-9V (2A power supply is recommended). Interface:RS485/RS232/USB Frequency:433 mhz / 868 mhz Transmit power:-40~+20dBm. Receiving sensitivity:-114dBm. Operating temperature:-25℃~+75℃. Transparent transmission mode baud rate: 1200 2400, 4800, 9600 (default), 19200, 38400, 57600, 115200. Transmission distance:500M Size(without antenna):80x50x31mm Product Description: RS485/RS232/USB three products only different interface, the same function. Can communicate with each other, mixed use . RS485 < -- > RS485, RS232 < -- > RS232, USB < -- > USB. USb RS485, USb RS232, RS485 RS232 Usage (>=2pcs): Module 1 and Module 2 send data to each other. 2 3PCS, module 1 sends data, module 2 acts as a repeater (multiple repeaters can be used), module 3 receives data; delayed sending and receiving distance. 3 >= 3PCS, one as master device and the other as slave device. They work as well as wired RS485 bus. The master device sends data and the slave device receives data. Any slave device transmits data, and both the master device and other slave devices can receive it. Only one device (master or slave) is allowed to transmit data at any time. Package List: 1x Wireless Transceiver Payment Mathod Returns Policy Feedback Payment Mathod 1. Customer satisfaction is our top goal. We believe our items are so outstanding. All products are quality checked. They are new and in good condition when shipped to our customers. We are convinced you will be happy with your Purchase. 2. If product is defective or damage upon arrival, or wrong product shipped, please contact us immediately. Returns accepted within 14 days of delivery date and item must be in original new condition, not worn or altered in any way with attached tags & wrap. Otherwise deal is final. Return shipping must be paid by buyer. 3. Please contact us first if you have any problems/questions/concerns. We will be happy to resolve any issues you may have in a cordial and friendly manner. 4. We appreciate your Postive Feedback, and will do the same in return. DO NOT leave negative feedback without first communication with us. Ple Returns Policy 1. Customer satisfaction is our top goal. We believe our items are so outstanding. All products are quality checked. They are new and in good condition when shipped to our customers. We are convinced you will be happy with your Purchase. 2. If product is defective or damage upon arrival, or wrong product shipped, please contact us immediately. Returns accepted within 14 days of delivery date and item must be in original new condition, not worn or altered in any way with attached tags & wrap. Otherwise deal is final. Return shipping must be paid by buyer. 3. Please contact us first if you have any problems/questions/concerns. We will be happy to resolve any issues you may have in a cordial and friendly manner. 4. We appreciate your Postive Feedback, and will do the same in return. DO NOT leave negative feedback without first communication Feedback When you satisfied with our product and services please leave us positive feedback. If a problem occurs, contact us immediately with any email request. Just contact us using the " Ask the seller a question" link on eBay.We will maill bakc within 24hours
