{"product_id":"radiomaster-er4-4-channel-elrs-receiver","title":"Radiomaster ER4 4-Channel ELRS Receiver","description":"\u003cp\u003eThe ER4 has proven quite reliable in many combat robots in the past few years, and its unique thin form factor makes cramming it into tight spaces a breeze. The ER4 is the stock receiver for the DRV Drum Spinner Kit. \u003cbr\u003e\u003cbr\u003eYou can learn more about Open Source \u003ca href=\"https:\/\/www.expresslrs.org\/\" title=\"ELRS website\"\u003eELRS also known as the ExpressLRS protocol, here.\u003c\/a\u003e \u003cbr\u003e\u003cbr\u003eThis receiver will ONLY work with an ELRS radio, or one that has an ELRS module installed. The Radiomaster Pocket ELRS is the most common and best price-to-performance radio available. \u003cbr\u003e\u003cbr\u003eFrom Radiomaster's site: \u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBased on the Revolutionary ExpressLRS System\u003c\/li\u003e\n\u003cli\u003eHigh performance, high reliability, flexible configuration, low latency, and strong link quality\u003c\/li\u003e\n\u003cli\u003eSupport 4 PWM Channel\u003c\/li\u003e\n\u003cli\u003eOptimized ground up PCB design\u003c\/li\u003e\n\u003cli\u003eAutomatically voltage telemetry of external battery voltage or built-in receiver voltage\u003c\/li\u003e\n\u003cli\u003eSupports Wi-Fi updates and WEBUI configuration\u003c\/li\u003e\n\u003cli\u003eHigh quality 2.54 mm connector\u003c\/li\u003e\n\u003cli\u003eStandard 15 cm High Sensitivity Antenna\u003c\/li\u003e\n\u003cli\u003eFor any application that requires a small or lightweight receiver\u003c\/li\u003e\n\u003cli\u003eCompatible with all 2.4GHz ExpressLRS modules and transmitters with built in 2.4GHz ExpressLRS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eItem: ER4 2.4GHz ELRS PWM Receiver\u003c\/li\u003e\n\u003cli\u003ePower supply: DC 4.5 - 8.4V\u003c\/li\u003e\n\u003cli\u003eAntenna type: 15cm high sensitivity antenna\u003c\/li\u003e\n\u003cli\u003eWireless protocol: ExpressLRS 3.3.0 pre-installed\u003c\/li\u003e\n\u003cli\u003eOutput channel: 4CH PWM\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTelemetry power: 10mw\u003c\/li\u003e\n\u003cli\u003eBattery voltage detection range: DC 4.0- 35V\u003c\/li\u003e\n\u003cli\u003eWeight: 3.0 grams\u003c\/li\u003e\n\u003cli\u003eDimensions: 30*15*5mm\u003c\/li\u003e\n\u003cli\u003eFirmware: Device Category: Radiomaster 2.4Ghz \/ Device: RadioMaster ER4 2.4GHz PWM RX\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Just 'Cuz Robotics","offers":[{"title":"Default Title","offer_id":53314911994165,"sku":null,"price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0764\/3129\/4773\/files\/ER4-1_720x_0a13f64d-363d-45bd-a108-fe82eb40fb1f.webp?v=1786991916","url":"https:\/\/justcuzrobotics.com\/products\/radiomaster-er4-4-channel-elrs-receiver","provider":"Just 'Cuz Robotics","version":"1.0","type":"link"}