D3 - Hager Timer 2 Ways 3 Power Point Set 

Ready to use to control sound system

To control 2 internal amplifiers (running for 12 hours each) and 1 external amplifier (running only from 7am -  7pm) 

To alternate internal amplifiers so it will not heat up

Made in France

24 hours time

Every bit is 10 minutes

Reliable and long lasting

When charged for 120 hours,the back up battery will last for 200 hours