ImmersionRC RF Power Meter V2

Detects when a quadcopter is ready for operation and whether there is a problem with the hardware, cables, connectors, or antenna. The PowerScope mode provides a visual representation of the power emitted by the transmitter. It can even detect transmitters that comply with LBT (listen before talk) or Duty Cycle Limits. Average or peak measurements can be performed. The integrated lithium-ion battery allows for a runtime of up to 8 hours and can be charged in less than 1 hour via the Micro-USB port.