This is the Hanger 9 Digital Variable Load Voltmeter.  The Digital Variable Load Voltmeter from Hangar 9 precisely simulates typical in-flight loads on a receiver battery and displays real time voltage so modelers can be sure they have plenty of power to fly. Modelers can simulate three different loads: .5A, 1A or 2A. All voltage information is clearly displayed on the unit’s digital LCD screen. It will measure voltage from as low as 3.5V to as high as 10V and is compatible with all popular 4- and 5-cell receiver packs.  These are must for all pilots who want to protect their aircraft from in-flight battery failure.

Features:

• Monitors battery voltage before flight
• Three selectable loads: .5A, 1A or 2A
• Accurate digital LCD readout displays both current load and real-time voltage
• Works on 4- to 8-cell packs
• Universal lead

Output Connector: Universal
Battery Type: 4 to 8 cell
LCD: .5 in LCD w/ 3 digits
Dimensions (WxLxH): 3.25 x .75 x 2.125 in