RadioMaster continues to lead open-source RC innovation, building on the trusted global legacy of the TX16S series. The TX16S MK3 elevates performance, precision, and ergonomics to new levels.

RadioMaster TX16S MK3 ELRS 16CH Gemini-X 900MHz/2.4GHz Radio Controller (no batteries)

RadioMaster continues to lead open-source RC innovation, building on the trusted global legacy of the TX16S series. The TX16S MK3 elevates performance, precision, and ergonomics to new levels.

Features

• High-Performance MCU: Powered by the STM32 H7 chip for maximum processing power.
• Touchscreen Display: 5-inch, 800 x 480 IPS touchscreen with vivid colors and sharp detail.
• Precision Gimbals: V6 quad-bearing Hall sensor gimbals (AG02 compatible)
  RGB Programmable Gimbal Light Rings: LUA-controlled, customizable LED gimbal lighting.
• Internal RF Module: Dual-band Gemini 2.4GHz and Sub-G 900MHz
• Smart Balance Battery Circuit: Maximizes battery efficiency and longevity for better battery life.
• Powerful Cooling System: Low-noise, high-output fans and an aluminum heat sink keep your radio cool, even on the hottest days.
• Digital audio: Greater sound quality and reduced interference.
• Dual Foldable Antennas: Compact and easy to store without compromising signal strength.
• Built-in Microphone: For future feature expansion.
• Automatic back light adjustment: Makes the screen easier to read indoors and out.
• Built-in Motion Sensor: Trigger switches, pan/tilt cameras, or telemetry callouts simply by tilting your radio.
• Memory: Integrated 4GB of onboard flash memory and external MicroSD card support.
• Removable shoulder switch panels: Customize your setup with modular switch panels.
• Powered by the advanced STM32H7 processor, it offers lightning-fast performance, smooth operation, and instant responsiveness.
• The bright 5-inch 480×800 IPS touchscreen provides a sharp, sunlight-readable interface for easy navigation and programming.

Specifications

• Item: TX16S MK3 Radio Controller
• Color: Black / Transparent Charcoal
• Voltage Range: 6.6 – 8.4V DC
• Working Current: 1.10A (at max RF output power)
• Radio Firmware: EdgeTX (require 3.0.0 or higher)
• Built-in RF Module: ExpressLRS 2 x LR1121
• Frequency: ISM 2.4GHz and Sub-G 900MHz
• Number of Channels: Up to 16ch
• Gimbal: V6 Hall sensor gimbals (standard)
• MicroSD Card Slot: Yes (card not included)
• Internal Storage: Integrated 4GB of onboard flash memory
• Display: 5-inch IPS touchscreen (800 X 480 resolution)
• Battery: Two 3.7V 18650 Lithium-Ion cells / 21700 Li-ion 5000mAh Battery / 2S 7.4V 6200mAh Lipo (batteries not included)
• Upgrade Method: USB / EdgeTX Companion PC software
• Module Bay: JR-compatible module bay for additional modules
• Dimensions: 200*178*88mm
• Weight: 813g  (without battery)
• Mode 2

Version Note: April 2026

• Our version INCLUDES the 4GB onboard flash. We’ll update this if it changes to 512MB due to chip shortages.

Includes

• 1 * TX16S MK3 Radio Controller
• 1 * TX16S MK3 Signature Carry Case
• 1 * 18650 Battery Tray
• 2 * Replacement Shoulder Panels
• 1 * Type-C Cable
• 1 * Screen Protector
• 1 * 1.5mm Hex Wrench
• 4 * Low Tension Gimbals Springs
• 2 * Gimbal Stick Set Screws
• 1 * Nylon Neck Strap (Lanyard)
• 1 * RadioMaster Sticker Set
• 1 * TX16S MK3 Manual
• 1 * Inventory Card