eBay

1: Wide range of applications

2: 433M and 868M optional

3: Small size

4: cost-effective

5: Simple to use

Working voltage: DC 5V;

Working current: 5-40MA

Interface: RS485

Frequency: 433MHz/868MHz

Transmit power: -40~+20dBm;

Receive sensitivity: -114dBm;

Working temperature: -25℃~+75℃;

Transparent transmission mode baud rate: 1200 2400, 4800, 9600 (default), 19200;

The baud rate configured in AT mode is fixed as: 9600BPS;

Air-to-ground transmission distance: 500M

Dimensions (without antenna): 58.5x30x13.8mm

Weight (without antenna): 16.8g

How to use (>= 2pcs):

1 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), and module 3 receives data; delay sending and receiving distance.

3 >= 3PCS, one as the master device and the other as the slave device.

The way they work as well as a wired RS485 bus. The master device sends data, and both slave devices receive data. Any slave device sends data, and the master device and other slave devices can receive it. Previously only one device (master or slave) was allowed to send data.

application:

Modbus Modbus temperature sensor

LED Controller

RS485 relay

Remote control, telemetry system;

wireless instrument;

Smart home, home automation, smart home;

Access control ;

recognition system;

data collection;

IT appliances;

Smart Appliances;

Infant monitoring systems; etc.

433M Sucker Antenna:

Applicable frequency: 315MHz/433MHz/470MHz

Gain: 5.0 dBi

S.W.R. < 1.5;

Input Impedance: 50ohm

Antenna length: 145mm

Cable Type: RG174

Connector Type: SMA Plug Straight

Cable length: 1.5M

868M Sucker Antenna:

Applicable frequency: 868MHz/915MHz

Gain: 5.0 dBi

S.W.R. < 1.5;

Input Impedance: 50ohm

Antenna length: 110mm

Cable Type: RG174

Connector Type: SMA Plug Straight

Cable length: 1M

List:

1*433M multi-function wireless RS485 transceiver/868M multi-function wireless RS485 transceiver/433M suction cup antenna/868M suction cup antenna (optional)

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