RadioMaster TX16S MK3 Radio Controller (ELRS, M2)

The RadioMaster TX16S MK3 (ELRS, M2) is a full-size, 16-channel EdgeTX transmitter that pairs the proven TX16S body and switch layout with a built-in dual-band ExpressLRS system, giving pilots one radio that works with both 2.4GHz and 900MHz ELRS receivers.

Key features

• Built-in dual-band ExpressLRS (Gemini-X, 2x Semtech LR1121) covers 2.4GHz and Sub-G 900MHz receivers from the same handset.
• V6 quad-bearing Hall-Effect gimbals, using the AG02 chipset, with external travel, centring and tension adjustment.
• 5-inch IPS touchscreen (800x480) driven by an STM32H7 processor for fast, responsive menu navigation.
• JR-compatible module bay for external RF modules alongside the internal ELRS system.
• Removable shoulder switch panels, plus onboard flash memory and microSD storage for models and Lua scripts.

Specifications

• Channels: Up to 16
• RF module: Internal dual-band ExpressLRS, 2x LR1121
• Frequency: 2.4GHz and Sub-G 900MHz
• Gimbals: V6 Hall Effect, quad-bearing
• Display: 5" IPS touchscreen, 800x480
• Working voltage: 6.6–8.4V DC
• Dimensions: 200 x 178 x 88 mm
• Weight: 813 g (without battery)
• Firmware: EdgeTX 3.0.0 or later

Runs on two 18650 cells, a 21700 5000mAh cell, or a 2S 6200mAh LiPo (battery not included) — confirm your receivers cover both bands before relying on Gemini-X dual-band operation.