Radiomaster ER4

Specifications:

• ARTICLE :: ER4 2.4GHz ELRS PWM Receiver
• Power supply: DC 3.5 - 8.4V
• Antenna type: 15cm high sensitivity antenna
• Wireless protocol: ExpressLRS 3.2 pre-installed
• Output channel: 4CH PWM
• Serial output: CRSF / Sbus
• Return power: maximum 10mw (LUA can be set)
• Built-in high precision air pressure sensor (Vario)
• Battery voltage detection range: DC 4.0 - 35V
• Weight: 3 grams
• Dimensions: 30*15*5mm
• Firmware: Device Category: Radiomaster 2.4Ghz / Device: RadioMaster ER4 2.4GHz PWM RX
• Manual: Download

The package contains: 

1 * E4 2.4GHz ELRS PWM Receiver
2 * Heat shrinkable tube
1 * Voltage telemetry wire (Type-A)
1 * User card