https://www.asmag.com/project/resource/index.aspx?aid=16&t=secutech-made-in-taiwan-products-and-solutions
Product Info
Micro power wireless transceiver 10mW 1km 5V 400-470MHz KYL-200U

Micro power wireless transceiver 10mW 1km 5V 400-470MHz KYL-200U

KYL communication equipment co.,Ltd
Region: China
Update: 09/24/2014
Key Specifications
KYL-200U is a kind of micro power wireless transceiver data module. With small size, low power consumption as well as good stability and reliability, it is widely used in remote control, industry automation, wireless telemetry and so on. This module can be connected with micro-controller, PC, RS485 equipments and other devices with UART port directly.

10mW(Default), (50 or 100mW optional)

1000m@1200bps; 600m@9600bps

5V DC (default), 3.3-3.6V( optional)

400-470MHz, 868MHz,915MHz

TTL, RS232, RS485

https://www.asmag.com/project/resource/index.aspx?aid=16&t=secutech-made-in-taiwan-products-and-solutions