Home Treasures

What are some of the objects that accidentally triggered the alarm book from the library?

I often see people who do not have anything to charge security gates in the library where I work. What is causing the problem? I've heard that magnets or watches can sometimes do this. But why Not all magnets or all clocks have this effect?

It is not easy to answer because it depends on the type of alarm system used. The most popular is sending a low radio frequency power and search for "something" that will be a tuned circuit to Freqency. a tuned circuit is usually a small) piece (metal, where some coil behaves like a (can be a long piece of wire folded more or less) and a capacitor (ie, two pieces of metal with an insulator including) theory, is very unprobable to find an object that will have exactly the right way to activate the alarm. I suspect this alarm sytem needs some adjustments to reduce its sensitivity.

26 Alphabet A-Z Letters 15 Number Wood Fridge Magnets Baby Educational Toy Set A $0.99

Rewriteable Dry Erase Magnets Set 4 with Marker Home Locker Office School $5.99

San Francisco SFO Magnet Set Golden Gate Bridge CastroTheater Alcatraz Island $15.00

Set Of 24 Magnetic Duster, 21" Longs $60.78

Set Of 24 Power Clips With Magnets $61.71

MAG DIAL INDICATOR AND MAGNETIC BASE GAUGE TOOL MIC SET $49.99

Magnetic Wine Glass Charm - LOVE Set of 6 $6.99

Magnetic Wine Glass Charm - IHeartU Set of 4 $5.99

Magnetic Wine Glass Charm - IHeartU Set of 6 $6.99

Magnetic Wine Glass Charm - Heart & Arrow Set of 6 $6.99

Colorful Magnetic Arabic Numbers Arithmetic Symbol Set $8.59

Repair Maintain Screwdriver Set 15 Kits Magnet Tool kit $4.17

Home Decor & Accents NEW Magnetic Vases Set of 5 Magnet Table Art Desind Gifts $34.00

Home Decor & Accents NEW Magnetic Vases Set of 5 Magnet Table Art Desind Gifts $34.00

Home Decor & Accents NEW Magnetic Vases Set of 5 Magnet Table Art Desind Gifts $34.00

Closeout Auction (1) Set 3 PINK RIBBON ~ CANCER AWARENESS ~ CAR MAGNETS $3.83

Family Guy Blue Harvest Magnet Collection Set FDM183 $13.73

Irwin 14 Pc. Torsion Magnetic Drive Guide Set IRW3057024 $16.11

Pen Shape Handle 9 in 1 Magnetic Screwdriver Bits Set $6.72

Two Sets of Coca-Cola Bottle Delivery Truck Magnets -New! 4 Coke Magnets per Set $4.49

Set Of 4 Black and White Magnetic Bag Clips $4.99

Insect Flower Wooden Fridge Magnets Paper Holder Set $4.21

Chef Sharp Ginsu Stainless Steel Knives Cutlery Set + Magnetic Knife Bar Holder $108.99

Chef Sharp Ginsu Stainless Steel Knives Cutlery Set + Magnetic Knife Bar Holder $108.99

Chef Sharp Ginsu Stainless Steel Knives Cutlery Set + Magnetic Knife Bar Holder $108.99

DESIGNER MAGNETIC DOOR STOPS**SET OF 6** ANTIQUE BRASS $36.00

Telescopic Magnetic Pick Up Tool & Mirror Set:Auto Shop $2.20

33 in 1 Magnetic Torx Pozidriv Screwdriver Bits Set $13.91

NEW SET OF 3 FRIDGE MAGNET PHOTO FRAME HEARTS & FLOWERS $7.92

NIP Dewalt 7PC Magnetic Drive Multi-Bits Guide Set DW2095 Screwdriver Set Sealed $5.49

29 in 1 Magnetic Screwdriver Bits Tweezer Handle Set $8.33

Magnetic Philips Slotted Torx Screwdriver Bits Tool Set $7.47

MAGNETIC DOOR STOPS-18 SETS-POL.BRASS *FREE SHIPPING* $108.00

CRAFTSMAN 23 PIECE ~ Magnetic Screwdriver/Nut Driver Set NEW! $6.97

Four COOL COFFEE refrigerator magnets-two sets (8) $1.00

60mm Length Model T7 Torx Screwdriver Magnetic Bits Set $6.10

Telescopic Magnetic Pick Up Tool & Mirror Set:Auto Shop $2.20

New Robots & Rockets 21 Pc Fridge Magnet Set Retro $26.31

15 Number 26 Alphabet A-Z Letters Wood Fridge Magnets Baby Educational Toy Set C $0.99

Primitive Country Star Magnets Wood Set/7 Free Shipping $10.95

---