Kate, age 10 of Saint Paul, MN wrote:
my brother freaked out.

Aaron, age 13 of MO wrote:
Cool! it scared my sister when she opened it. very funny.

Michel, age 8 of Chicago wrote:
i hooked it up and it worked! IT WAS SO COOL!!!

Chrissy, age 10 of Orangeburg, SC wrote:
When I first tried it and it did not work, I stripped the wires back on the 9 volt battery so that I would have more tip. I tried red to black & black to red on the poisitive & black on the negative I got a clicking noise with 9 volt. With the d it was a low click, and the winner was c it made a high click & buzz. HA HA HA I LOVE MY NEW ALARM, THANKS ZOOM & Kimberly.

Anne, age 12 of Bristol, England wrote:
It so... amzing. My family use 2 butt in 2 my room without me noticing. But not anymore since I put the alarm.

Jesse, age 12 of Mandeville, LA wrote:
The door alarm was great. I mounted it on my door. Then my dog hit my door and opend the door and the alarm whent off. IT WAS COOL!!!

Hannah, age 15 of Augres, MI wrote:
nothing happend, we did it just like you said, it was stupid we even re-did it like 3 times. it was bad

Priyan, age 14 of Chennai wrote:
there is no circuit given

Cam, age 7 of Saint Johns, MI wrote:
I made it with two big fat books, Tin foil, Spy kit buzzer, and a magnet. "Beeb beeb beeb beb beeb beeb Beeb" that is what the buzzer sounds like. and it worked!

Brian, age 14 of Fort Lauderdale, FL wrote:
It worked out great. Now my little brothers cant come in.

Estabon, age 4 of Lake Charles, LA wrote:
Omg, it wuz so asum. My sista was trying to take my stuffed possem. So I wuz in da kitchen watching Crocodile Hunter and eating Pork rinds when I herd the alarm go off. I ran up sters and saw her crying by my door. I luaghed and said "You shouldn't have gone and done that". Then I went outside to catch lizards.

Tyron, age 12 of Harvey, IL wrote:
It ain't work. We tried and tried and my dad almost lost his mind... Trust i tried hard and it doen't work

Marissa, age 12 of NY wrote:
it was very loud so when I have a suprise for my sister in our room and I am not there I hear the alarm and got her.

Bradybill, age 14 of Las Vegas, NV wrote:
i had broke the switch so nothing worked, but I tried to fix it and to get it to work. I was tring to make a door alarm but my plans didnt work.

Mariah, age 15 wrote:
It rang loud! I was scared myself

Sydney, age 11 of Brampton, ON wrote:
Well it activated and now my brother cant sneak into my room without getting caught

Tate, age 8 of ME wrote:
well it worked and it was cool

Candela, age 11 of Orem, UT wrote:
It totally worked it was awesome

Jessica, age 13 of MI wrote:
we did it in class for a lab experiment. I was so amazed it worked it scared me when it went off.

Dyshiki, age 11 of Peoria, AZ wrote:
o my gosh this alarm is da best thing in the world like totally awsome I was in the kitchen eatn a tuna sandwich wen I heard da alarm go off it wa my annoying brother staeling my make up it reaally wrks o my gosh

Meaghan, age 11 of Kitchener, ON wrote:
i toddly choght my sister when she was trying to stell somthing from my bedroom and my alarm went on so I stoped her

Tasmia, age 11 of Portland, OR wrote:
Well, my older sister always used to come in and bother me... the first time she came in while the alarm was set... AHHHHH!!! She was gone in a second! I was really happy with the results.

Drake, age 13 of New York, NY wrote:
i changed the door alarm a bit. it took an old tv set and Vcr and hooked it up so every time someone comes into my room iit sounds like a minigun going off

James, age 10 of Labury, IL wrote:
i decided to change the design a bit and include a few laser tripwires and photo cells(CDS) and a mobile phone.. as soon as my little sister went into my room my phone started ringing and it came up on screen "room breich" XD

Emily, age 6 of NC wrote:
my dog was going to the door of my bedroom the alarm made him go away

Allison, age 7 of FL wrote:
My sister came in and set it off!!!

Mariah, age 7 of York wrote:
one day my sister wanted to steel a toy the bell was so loud my sister sreamed and ran away.

Onkita, age 9 of East Elmhurst, NY wrote:
it was so unbelievable when my little baby brother sneaked up to the room the alarm buzzed and it scared him.

Devon, age 12 of Chicago, IL wrote:
it sounded JUST like a doorbell placed in a house

Cass, age 8 of Elizabethton, TN wrote:
By keeping my sister out I put a alarm on my door.