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Opensource Transmitters & Receivers

What is 4in1 and ExpressLRS


What’s the main difference between 4in1 and ELRS and why to use one or the other?
A 4in1 or ELRS transmitter version is basically the same radio just using different receivers to control your RC’s. If you already have a lot of receivers in your models, use the 4in1. Keep in mind that although there are dozens of supported protocols, there are still some that are not yet supported. New protocols are added occasionally within new software updates. If you are just getting started with RC and don’t have many receivers, use ELRS. Additionally whichever radio version you get, you can always add the opposite module to gain that functionality. Keep in mind that not all brands of receivers and or protocols will work with the 4in1 so do some research first. ELRS receivers are cheap, have telemetry, increased range and faster latency. Additionally, you are not limited to only Radiomaster brand ELRS receivers as it is an open source protocol so other manufacturers receivers will also work


Brand: Radiomaster Model: RMS-4IN1RF
The RadioMaster 4IN1 external module is a multi-protocol module that integrates CC2500, NRF24L01, A7105 and CYRF6936 RF chips. Designed for OpenTX and EdgeTX systems, the RM 4IN1 module allows the radio to connect with most mainstream protocols on the market. Features Up to 20dBm pow..
$59.99
Brand: Radiomaster Model: RM-Boxer-4IN1
Specifications: Item: BOXER Radio Size: 235*178*77mm Weight: 532.5g Frequency: 2.400GHz-2.480GHz Internal RF Options: 4-in-1 multi-protocol Supported protocols: Module dependent Transmitting Power 4IN1: Max 20dBm Voltage Range: 6.6-8.4V DC Radio Firmware: EdgeTX (Transmitter..
$139.99
Brand: Radiomaster Model: RM-Boxer-c2500
The RadioMaster Pocket is a compact and lightweight radio device that delivers impressive performance. It is offered in two variants, namely ExpressLRS and MPM CC2500, both of which come with EdgeTX firmware preloaded. The Pocket is also designed with detachable stick ends and a foldable antenna, en..
$59.99
Brand: Radiomaster Model: RMS-RX-ER3Ci
Description The RadioMaster ER3C-i receiver utilizes the advanced ExpressLRS system, known for its high performance and groundbreakin..
$16.99
Brand: Radiomaster Model: RMS-ER5A
Introducing the RadioMaster ER5A 2.4GHz 5Ch ELRS PWM Receiver, designed for aircraft applications. We are also pleased to offer the ER5C ELRS PWM Receiver, ideal for surface and marine R/C applications. Key Features: Support..
$19.99
Brand: Radiomaster Model: RMS-ER5C
DescriptionIntroducing the ER5 Series ELRS PWM receivers! The ER5C is specifically designed for Surface & Marine R/C applications, while the ER5A is designed for Aircraft applications.Features:Supports 8.4V HV servos and accessoriesRobust, injection-molded receiver casingFast response speeds and..
$19.99
Brand: Radiomaster Model: RMS-RX-ER5Ci
Introducing the RadioMaster ER5C-i receiver, built on the cutting-edge ExpressLRS system for outstanding performance. Experience unparalleled reliability, remarkable flexibility in configuration, lightning-fast response times, and an extended receiving range that redefines your usage expecta..
$19.99
Brand: Radiomaster Model: RMS-0068
The RadioMaster MT12 represents a groundbreaking open-source surface radio, and it holds the distinction of being the first surface radio to receive official support from EdgeTX, ExpressLRS, and the Multi-module project. With its impressive 10 physical inputs and the ability to accommodate e..
$129.99
Brand: Radiomaster Model: RMS-0067
The RadioMaster MT12 represents a groundbreaking open-source surface radio, and it holds the distinction of being the first surface radio to receive official support from EdgeTX, ExpressLRS, and the Multi-module project. With its impressive 10 physical inputs and the ability to accommodate e..
$129.99
RadioMaster R168 16 Channel RC Radio Receiver RadioMaster R168 16 Channel RC Radio Receiver
OUT OF STOCK
Brand: Radiomaster Model: RMS-RX-R168
RadioMaster R168 16 Channel RC Radio ReceiverNumber of channels: 16 channelsFrequency range: 2400-2483.5MhzPower supply range: 4.5-6VSignal protocol: D16Output format: PWM, SBUS, S.portTelemetry: S.port, RSSI output, VBAT (up to 18V voltage detection)Control distance: more than 1kmFailsafe protectio..
$29.99
Brand: Radiomaster Model: RMS-RX-R86
RadioMaster R86 6 Channel RC Radio Receiver Channels: 6Frequency range: 2400-2483.5MhzPower input range: 4.5-6VSignal format: Frsky D8 CompatibleOutput format: PWMSupport return: support return RSSIRamge: more than 1kmAntenna length: 15cmSize: 28x16.5x11mmWeight: 4.8 grams..
$21.99
RadioMaster R86C PWM 6 Channel sBus 8 Channel RC Radio Receiver RadioMaster R86C PWM 6 Channel sBus 8 Channel RC Radio Receiver
OUT OF STOCK
Brand: Radiomaster Model: RMS-RX-R86C
RadioMaster R86C PWM 6 Channel sBus 8 Channel RC Radio ReceiverChannels: 6 channels (PWM), 8 channels (SBUS)Frequency range: 2400-2483.5MhzPower input range: 4.5-6VSignal format: Frsky D8 CompatibleOutput format: PWM / SbusSupport return: support return RSSIRange: more than 1kmAntenna length: 15 cmS..
$21.99
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