Customer Ratings & Reviews

Wow this thing is loud. Super fast free shipping from Best Buy. Definitely a + for the simpli safe system.

Love this addition to my alarm system. Helps with alerting me when the alarm is triggered.

was easy to setup and install. probably took less than 15 minutes total

Work as the reviews I read. Has different sound settings that work great depending on the location you choose.

Installation went smoothly. After less than two months, the siren has gone offline and won’t come back on. The reset button didn’t solve the problem so now I have to call SimpliSafe and disassemble the siren to see if we can fix it. The same thing happened when I first set up the system—the keypad wouldn’t connect and the only way to fix it was to take the base station apart. I’m not sure why taking apart the hardware is standard and every issue requires a phone call. Unfortunately, in my experience, the system might be “simple,” but setup and troubleshooting aren’t easy or fast.

This siren is really loud it can make your head rattle. Great for intruders, the sound is deafening.

Great addition to the system, added level of second alarm.

I like simplisafe products because it was really simple to install, to setup and to service.

Needed additional siren for alarm system. Very easy to add to existing system.

Love the SimpliSafe system. This alarm is efficient and unbelievably loud! Just what you want.

Easy to install. Good as i thought it was. Ordered the siren after the system. Working Great!!!

Loud is good when it comes to an alarm. I think all systems should have this. Well worth the money.

Amazingly loud, a true, shrill shrieker. If left on, it drives you out of the house in a hurry. Wakes the neighbors?

The external alarm is a great accessories for the simpli safe System by adding a more audible alarm to the system.

Works as promised SimpliSafe safe is simple and works well plus cheap monitoring charges

Awesome product. Very loud. Great addition to the system

Now the whole neighborhood looks my way when this thing goes off! Eyes on everything!

Works well. If you do not stop the alarm in time you can go deaf. Really loud.

Seriously loud siren. Essential to complete your system.

The Wireless Auxiliary Siren was easy to integrate into the existing system.