KYL-500S is a Mini-size RF transceiver. It is usually used for restricted space application. With TTL interface, it is widely used for micro-controller wireless communication and other TTL level port communication systems. It has high reliability and good performance.
I. Technical specification
PERFORMANCE
Power Output: 50mW(Default), (10~100mW optional)
RF Line-of-sight Range: 1000m@1200bps; 600m@9600bps
RF Effective Rate: 1200/2400/4800/9600/19200bps
Space Channel: 1MHz(Default),(12.5/25KHz/other customization )
Bandwidth:  <25KHz
Receiver Sensitivity: -123dBm@1200bps(1% BER)

NETWORKING
Networking Topology: Point-to-point, point-to-multipoint
COMPATIBILITY
KYL-200 and KYL-300 series                       
POWER
Supply Voltage: 5V DC (default), 3.3-3.6V( optional)
Transmit Current: <40mA
Receive Current: <20mA
Sleep current: <30uA
GENERAL
Communication Mode: Half-duplex
Frequency Band: 400-470MHzMHz
Channel: 8(default),16/32/64(optional)
Interface: TTL
PHYSICAL PROPERTIES
Size: 28mm×15mm×10mm
(excluding antenna base and data pin)
Weight: 20g
Antenna Base: 50Ω,  SMA
Operating Temperature: Industrial:-40℃~+85℃(TCXO)
Frequency Stability: ±2.5ppm Industrial

II. Application Field
KYL-500S the micro power wireless transceiver data module is suitable for:
* Wireless alarm and security systems
* Wireless scanner
* Building automation, security, wireless monitoring and control
* Wireless data transmission, automatic data collection system;
* Sports training & competition;
* Wireless POS, PDA wireless smart terminal;
* Wireless telemetry Charging for parking, parking lot;
* Wireless modem Automobile inspection and four-wheel orientation;
* Point to multi-point wireless network
   ......