RadioMaster ER4 2.4GHz ELRS PWM receiver

The RadioMaster ER series of PWM receivers are based on the revolutionary ExpressLRS system. It offers high performance, high reliability, flexible configuration, fast response speed and ultra-long range bringing you brand new experience with your hobby. The ER4 PWM receiver can drive 4 servos simultaneously. Designed with a very small volume, it is suitable for small aircraft models, ship models, car models and other models that require a small or lightweight receiver while still providing full range. FeaturesBased on the Revolutionary ExpressLRS SystemHigh performance, high reliability, flexible configuration, fast response speed and ultra-long rangeSupport 4 PWM ChannelOptimized ground up PCB design Automatically voltage telemetry of external battery voltage or built-in receiver voltageSupports Wi-Fi updates and WEBUI configurationHigh quality 2.54 mm connectorStandard 15 cm High Sensitivity AntennaFor small aircraft, boats and cars and more SpecificationItem: ER4 2.4GHz ELRS PWM ReceiverPower supply: DC 4.5 - 8.4VAntenna type: 15cm high sensitivity antennaWireless protocol: ExpressLRS 3.2 pre-installedOutput channel: 4CH PWMTelemetry power: 10mwBattery voltage detection range: DC 4.0- 35VWeight: 3.0 gramsDimensions: 30*15*5mmFirmware:Device Category: Radiomaster 2.4GhzDevice: RadioMaster ER4 2400 PWM RX Package Includes1 * ER4 2.4GHz ELRS PWM Receiver2 * Heat-shrink tube1 * Voltage telemetry wire (Type-A)1 * User Card