Specifications:

• Band: 2.4GHz
• Number of channels: 3
• Model Type: Car/boat
• Modulation: 2-FSK
• Range: 400 meters
• Size: 155 x 100 x 200mm
• Weight: 320g
• Input Voltage: 4.0-8.6V
• Suitable battery(not included):4 x AA dry cells/NiMH battery(max size:109x33mm).
• Low voltage warning: yes
• Failsafe setup: yes
• Battery voltage telemetry function: yes

The four LED lights on the left side display the voltage range where the battery voltage is. if the light on the right most is not lit up, it only shows the voltage of the transmitter.

Below is the reference to the voltage.

In order to monitor the battery voltage on the transmitter, you need to connect the battery to the receiver using the specialized power lead.

Click to purchase the power lead for 3S LiPO

Click to purchase the power lead for 2S LiPO