The TURNIGY watt meter is a very accurate R/C amp/watt meter.

Predict model airplane flight time with any given propeller.  
Ensure peak currents are safe for motor, ESC, wiring and connectors  
Check battery health and performance.
Evaluate R/C battery charging efficiency.  
Choose the best propeller or gearing and the most efficient motor  
Check for wiring and connector power losses  
Measure power and energy consumption of ANY device with a battery

 

Spec.Operating voltage: 4.8~60V (0V with optional auxiliary battery)

Measures;0~130A, resolution 0.01A,0~60V, resolution 0.01V

0~6554W, resolution 0.1W,0~65Ah, resolution 0.001Ah

0~6554Wh, resolution 0.1Wh,Screen: 16x2, backlit LCD display

Size: 85x42x25mm, Weight: 82g     Our Price £24.99