Since .rar files can execute scripts or contain malicious payloads, ensure you:
: Binary files ( .bin or .hex ) used to flash the transmitter's onboard microcontroller. WST20-MW.rar
: If the software allows, always save your current device configuration before applying a new firmware update found in the archive. AC Powered Wireless Sensor Transmitter - SKU 6331 WST20-MW.rar