RadioMaster ER4 ExpressLRS (ELRS) 2.4ghz Micro Receiver

These are a new addition to our collection of receivers built on the awesome new ExpressLRS protocol/platform. These are intended to be a suitable replacement to the FS2A for those looking to keep the analog PWM channels, but switch to the ELRS protocol from Flysky. The main differences are this one is a bit bigger than the FS2A or RP2, and weighs about the same as an FS2A. It comes with the pins pre-installed, but they can be removed for direct soldering if you want to save weight. The RadioMaster ER series of PWM receivers is built on the innovative ExpressLRS protocol. It provides high performance, dependable signal, versatile configuration, and quick response time, offering a new experience for your projects and applications. The ER4 PWM receiver can drive 4 servos simultaneously. Designed for a very small volume, it is suitable for any application that requires a small or lightweight receiver while still providing full range. Features Based on the Revolutionary ExpressLRS System High performance, high reliability, flexible configuration, low latency, and strong link quality Support 4 PWM Channel Optimized ground up PCB design Automatically voltage telemetry of external battery voltage or built-in receiver voltage Supports Wi-Fi updates and WEBUI configuration High quality 2.54 mm connector Standard 15 cm High Sensitivity Antenna For any application that requires a small or lightweight receiver Compatible with all 2.4GHz ExpressLRS modules and transmitters with built in 2.4GHz ExpressLRS Specification Item: ER4 2.4GHz ELRS PWM Receiver Power supply: DC 4.5 - 8.4V Antenna type: 15cm high sensitivity antenna Wireless protocol: ExpressLRS 3.3.0 pre-installed Output channel: 4CH PWM Telemetry power: 10mw Battery voltage detection range: DC 4.0- 35V Weight: 3.0 grams Dimensions: 30*15*5mm Firmware: Device Category: Radiomaster 2.4Ghz / Device: RadioMaster ER4 2.4GHz PWM RX