RadioMaster Ranger Micro ELRS 2.4GHz Module

The RadioMaster Ranger Micro is a high-output 2.4GHz ELRS transmitter module designed for radios featuring standard Micro (JR-style) module bays. Built around the ExpressLRS open-source project, it delivers up to 1000mW of RF output and supports packet rates up to 1000Hz, ensuring robust signal penetration and ultra-low latency for long-range FPV wings, heavy-lift cinelifters, and competitive racing builds.

Key features

• Selectable output power up to 1W (1000mW) for navigating dense environments and achieving maximum control range.

• Built-in active cooling fan and a high-efficiency heatsink maintain consistent RF performance without thermal throttling.

• Integrated Wi-Fi for wireless ExpressLRS firmware updates and Bluetooth for wireless telemetry routing to ground station applications.

• Direct plug-and-play fit for standard Micro (JR) module bays found on the RadioMaster TX16S, Boxer, and TX12.

Specifications

• MCU: ESP32

• RF Chip: SX1281

• Frequency Band: 2.4GHz ISM

• Maximum Output Power: 1W / 30dBm

• Maximum Packet Rate: 1000Hz

• Module Bay Support: Micro (JR-compatible)

• XT30 power input: 6-16.8 V DC

• Weight: 40.5 g (without antenna), 50 g (with antenna)

• Dimensions: 74 x 49 x 33 mm (without antenna)

• In the box: module, 2.4GHz T antenna (RP-SMA), JR 5-pin bay adapter, Futaba CRSF cable, screwdriver and screws

Ensure your radio transmitter is fitted with a battery capable of supporting the elevated current draw when operating continuously at 1W, and never supply power to the module bay without a properly seated 2.4GHz antenna.