radiomasterRadioMaster
ER3 PRO PWM - Dual-Band GEMINI and GEMINI-X Receiver
Manufacturer part no. RM0157.0140
$49.99≈ 44.75 €
Price summary
Listed by radiomaster at €44.75. Delivered to France, including shipping, VAT and any customs duty, it comes to about €71.70. Prices last checked on 2026-11-01.
Delivered cost is an estimate for a single item shipped to mainland France; the seller's checkout is authoritative.
In stock
Estimated landed cost
| Item | €44.75 |
|---|---|
| Shipping | €15.00 |
| VAT (20%) | €11.95 |
| Total delivered | €71.70 |
Estimate for a single item delivered to mainland France, shipped from outside the EU: customs duty and clearance fees may apply and are charged by the carrier.
Specifications (automatically extracted)
Mechanical
| Weight | 250 g |
Description
The ER3 PRO is a compact receiver designed for installations where space is limited but link reliability and system access remain important. Despite its small footprint, it retains a full-featured RF and telemetry interface, making it well suited for clean, space-constrained builds. Note on FCC Certification: Due to current FCC regulations classifying this product as a foreign-produced UAS component, we are currently unable to obtain FCC certification. This item cannot be shipped to or sold in the United States at this time. Features ExpressLRS Performance: Low latency, high reliability, and excellent link quality with flexible configuration options. Dual-Band Gemini X (2.4GHz + Sub-G 900MHz): Utilizes both frequency bands to provide enhanced link reliability across a wide range of operating environments. Up to 100mW Telemetry Output: Increased telemetry output power for improved data reliability and range. 3 PWM Outputs + Serial Support: Compact PWM output with CRSF and SBUS options. External UART Port (Locking Connector): Dedicated interface for telemetry, external devices, and system expansion. Independent Multi-Source Voltage Telemetry: Monitor up to two power sources simultaneously using dedicated ADC channels: EXT-V (up to 70V), receiver supply voltage (V-PWM) (up to 12V). MMCX Antenna Connectors: Durable, replaceable antennas with a secure connection. Wi-Fi Updates & WebUI: Configure and update directly without disassembly. Durable Injection-Molded Housing: Compact, protective enclosure for long-term reliability. Application: A compact, full-featured receiver for models that require advanced RF performance, telemetry, and connectivity in a space-efficient package. Compatibility: Compatible with all ExpressLRS transmitters and modules, including radios with built-in ELRS. At its core is the ExpressLRS system, built around dual Semtech LR1121 transceivers and a dual-band Gemini X RF architecture operating on both 2.4 GHz and Sub-G 900 MHz. Combined with up to 1
