RS485 Wireless 20DBM 433mhz and Receiver VHF/UHF Radio Modem for Smart Meter PTZ Camera PLC Modbus

Product Name: VHF/UHF Radio Modem RS485 Wirele 20DBM 433mhz and Receiver Package inlcuded: 1 PCS or 2 pcs 433M-458M Multifunctional wirele RS485 (With shell) Descrtion: Working voltage: 4.5V-5.5V; Interface : RS485 Frequency: 433MHz Transmit power: -40~+20dBm; Receiver sensitivity: -114dBm; Operating temperature: -25℃~+75℃; Transparent transmiion mode baud rate :1200 2400,4800,9600(Default),19200; Open ground Transmiion distance : 500M Size(without antenna): 74x24x16mm Weight(without antenna):18g Module features Long-distance wirele transmiion (up to 500 meters in open area , 10kbps baud rate in the air ) Operating frequency range ( 433 - 458.5MHz , up to 255 communication channels) Maximum 100mW ( 20dBm ) transmit power ( 10 levels of power can be set ) Built-in MCU, use serial port to communicate with external devices Send 31 bytes at a time The module can support one-to-one, one-to-many transparent transmiion communication through ID setting Changing the baud rate of a different serial port will synchronously change the rate at which data is sent over the air. ( 10kbps-100kbps) Set the ''critical three minutes''. The module can send and receive data normally within three minutes of power-on. You can send the AT command '' AT+ENABLE=1 '' to make the module enter the AT command state for parameter setting. There is only this reserved word in these three minutes. After more than three minutes, you will not be able to enter the AT command mode, you can only send and receive data, '' AT+ENABLE=1'' will also be sent out as data, there are no reserved words at this time. For more information, please contact me Recommend to buy more than 2pcs!!! How to use (>=2pcs): 1 2PCS,Module 1 and Module 2 send data to each other. 2 >=3PCS,One as master device, the other as will be as device. the way they work as well as wired RS485 bus. Master device transmit data, devices all receive data.Any device transmit data, master device and the other devices can receive .When ever only allowed one device (master or ) to transmit data.

Application PTZ Camera Modbus modbus temperature r LED Controller R4D3C32 N4D8B08 N4D8C12 RS485 Relay e control, e measurement system; Wirele meter ; Smart Home,Home Automation ,Wiser Home; Acce control ; Identification system ; Data collection; IT household appliance ; Intelligence household appliance; Baby monitoring system;

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