Wireless Transceiver UART Output Module GT-38, SI4438

Features

Long-distance wireless transmission (opening 1200 m/FU4 mode, air baud rate 1000bps)

Operating frequency range (433-458.5MHz, up to 255 communication channels)

Maximum 100mW (20dBm) transmit power (8-speed power can be set)

Four working modes, suitable for different applications

Built-in MCU, communicate through serial port and external device

The number of bytes sent at one time is up to 256 bytes.

Module supports one-to-one, one-to-many, many-to-many connection transparent transmission

Specifications

Model GT-38

Module size 26.7×12.9×6mm

Chip Solution SI4438

Working frequency band 433~458.5MHz

Communication Interface UART 3.3V/5V TTL Level

Antenna interface spring antenna / antenna socket

Working voltage 3.2~5.5V

Sleep current no sleep mode

Communication level 3.3V/5V level

Working humidity 10%~90%

Transmit power 20dBm (MAX)

Working temperature -25°C~+75°C

Reference distance 1200m

Storage temperature -40°C~+85°C