Its volt and amps display meter. Circuit connection diagram also gives in pictures.
Volt shows in RED led and Current in BLUE LED.
You can connect this meter with your battery or power supply for long time.
Digital Voltmeter 0-100v, Ampmeter 0-10a Meter Circuit Dual Led Best Quality
Voltage Range - 0-100V
Current range - 0-10 A
Package Include -
1 x volt and amps Display meter