The test button doesn’t even work.

Not easy to test, as the test button must be pressed and held.

the test button will scare you but you will know that it works.

The test button didn't work, even with a new battery.

The test button doesn’t work properly, so it’s extremely difficult to test alarm.

Battery already beepingBought a 2nd one and the test button is defective and doesn't work

The test button would not work on either

GreAt for the price, easy g o install, easy to turn off as it is very sensitive, you just have to remember to turn it back on