Product features:
Using SI4432 chip, bare board has the advantages of small volume, convenient use of embedded.
Narrowband anti-jamming is strong, strong penetration ability, RF shielding method, with the host computer software, convenient to achieve the multiple routing, steady transmission.

Product application:
Electrical water table three CCMS, street lamp control, data control and data transmission in the freight yard logistics, anti-theft alarm, intelligent instrument and meter, reactive power compensation, intelligent teaching equipment, physical detection intelligent equipment, measuring equipment, automatic control, Home Furnishing intelligent field etc..

The technical indexes of the product:
It uses GFSK modulation, reliable transmission line of sight distance up to 1000m;
The carrier frequency 490MHz, measuring frequency;
It provides 8 channels;
The interface / channel rate: 1200/2400/4800/9600/19200/38400bps;
The interface mode: TTL, RS-232, RS-485 selected by the user;
The transceiver, half duplex transceiver, data conversion automatically, as long as the interface to the sending / receiving data can be;
It can be used for point to point, point to multi point, point to multipoint communication combination etc.;
The transparent data transmission, data frame transmission longer;
False data filtering out the air auto generated, long-term use of good reliability, low failure rate;
The low power consumption and sleep function: power 200MW receives the current <45mA, the emission current of <200mA, current <10uA sleep;
The power supply: TTL/ RS232/RS485:DC +4.5V~+5.5V;
The temperature: -25 degrees ~+85 degrees;
The volume: 44mm * 27mm * 8mm (including the antenna base); weight: 15 grams;
The interworking model: JZ891, JZ893;
The standard antenna: SMA thick whip or small chuck antenna.