RadioMaster XR2 Nano 2.4GHz ELRS Receiver
SKU RM-XR2-NANO-24G
Free shipping. Pan India delivery from Gurugram, Haryana.
Ships within 3–4 business days — quality-checked in Gurugram before dispatch
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Product details
The RadioMaster XR2 is a nano 2.4GHz ExpressLRS receiver built around the third-generation Semtech LR1121 transceiver, with an integrated tower antenna on a 16 x 12 mm board. At 0.8 g it is made for whoops, micro quads and small fixed-wing models where every gram counts.
Key features
Integrated 2.4GHz tower antenna, with no separate antenna to mount or route
LR1121 transceiver works with any 2.4GHz ELRS radio and unlocks DK500Hz mode with an LR1121-based transmitter
ESP32-C3 MCU with built-in Wi-Fi for firmware updates and WebUI setup
Secondary UART port alongside the CRSF connection for extra functions
Castellated pads for clean, low-profile soldering
Specifications
MCU: ESP32-C3
RF chip: Semtech LR1121
Frequency range: 2.400–2.479 GHz
Telemetry power: 10 mW
Packet rate: 50Hz minimum, DK500Hz maximum
Working voltage: 5 V
Interfaces: CRSF, secondary UART
Dimensions: 16 x 12 x 6 mm
Weight: 0.8 g
Firmware: ExpressLRS v3.5.1 pre-installed, target RadioMaster XR2 2.4 RX
In the box: receiver, CRSF lead, 3 heat-shrink tubes, manual card
Connect it to a free flight-controller UART and set the receiver protocol to CRSF. It ships on ExpressLRS 3.x, so the transmitter must run the same major version; DK500Hz mode is only available when the radio module also uses an LR1121 chip.
| RC Protocol | ELRS |
|---|---|
| Made in India | No |
| Brand | RadioMaster |
| Frequency | 2.4GHz |
| Weight | 0.8 g |
| Diversity | No |
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