Electronic Safe Combinations Electronic safe or combination safe?
ok..... i want to buy a safe, i like the electic safe with the keypad but i hear that those are a malfunction waiting to happen, if you know what i mean, so i was thinking a safe with a combination instead. If anybody has had either for a good while i would like to know how the electric safe is and how reliable they really are. I plan to keep some files, keys as well as a fire arm inside, i like the keypad for faster access if needed. but i dont want it do malfuction and lock my stuff inside. so some tips or advice please...
i had a small home office safe with a mechanical combination lock. i found it perfectly adequate for my needs.
as for storing a fire arm, there are special safes for that item. your best bet is to turn your weapon over to the police as no one actually needs fire arms.
This safe features a programmable electronic lock that allows combinations from 3 to 8 digits long and includes a backup trouble key to ensure secure storage. A foam-padded bottom provides protection against scratching.
The Hollon HDS2014E Deposit Safe is large enough for letters deposit slips and smaller items. It has an antifish baffle which makes it impossible for wouldbe thieves to nab your valuables. BRated Depository Safe. AntiFish Baffle prevents theft through the deposit door. Battery operated Electronic Lock protected by an internal spring loaded relocking device. Easily change your personal code in seconds. Four anchor holes provided to secure your safe to the floor. 1/2 Thick solid steel door. 1/4 Thick body. (3) 1.20 Diameter solid steel live locking bolts. If combinations are entered incorrectly the keypad has a lockout penalty frustrating the wouldbe burglar. Heavy duty dead bar prevents door removal during a forced entry attempt. Exterior: 14 W x 14 D x 201/4 H. Interior: 131/2 W x 111/4 D x 101/2 H.
Easy to programme 3-8 digit electronic security code.Pre-drilled anchor points for floor or wall mounting via 4 expanding steel bolts.Double locking steel bolts and concealed hinges.Grey colour.Made from steel.Digital keypad with LED display.3 digit to 8 digit security code.Incorrect password entry alarm.Digital lock.2 keys included.2 x back up keys for manual override.4 locking bolts and metal hinges.2mm body thickness.Double locking steel bolts and concealed hinges.4mm door thickness.Floor mountable.Wall mountable.Low battery warning.Batteries required: 4 x AA (included).External size H50, W35, D31cm.Capacity 54.3 litres.Weight 17kg.
0% 1 1 Each 1 Year Limited 1 x Locking 19.65" Height x 14.80" Width x 11.89" Depth 2 ft³ 211 lb 23.74" Height x 18.58" Width x 19.33" Depth 7 x Live-locking OA5848 Fire-Safe Electronic Safe Bolt-down Hardware UL ETL Fire-Safe Electronic Safe is U.L. Classified two-hour proven fire protection and impact tested. ETL verified for 2-hour fire protection of CDs, DVDs, USB Drives and Memory Sticks up to 1,850 degrees Fahrenheit. Holds standard and A-4 size papers, folders and binders. Water-resistant electronic safe features advanced LCD electronic lock with backlit keypad, programmable PIN access, tubular key lock and seven live-locking bolts. Features metal handle, pullout file rack, a multiposition drawer, key rack, door pocket and compartment for small items. Bolt-down hardware included for added security. Safe weighs 211 lb. (95.7 kg.). Interior dimensions are 14-13/16" wide x 11-7/8" deep x 19-21/32" high (37.6cm wide x 30.2cm deep x 49.9cm high). Holds 2.0 cubic feet 3456 cubic inches. Black Door Pocket Electronic Fire Resistant Fire-Safe Gunmetal Gray LCD Electronic Lock Metal Handle No OA5848 OA5848 Fire-Safe Electronic Safe Security Safe Sentry Group Sentry Safe Tubular Key Water Resistant www.sentrysafe.com
0% 1 1 Each 1.20 ft³ 13.75" Height x 12.56" Width x 11.87" Depth 135 lb 17.84" Height x 16.34" Width x 19.31" Depth 6 x Live-locking Key rack and compartment for small items UL-classified 2-hour proven fire protection UL Fire and Impact Test (30 ft. Drop Test) ETL verified for 2-hour fire protection of CDs, DVDs, Memory Sticks and USB Drives up to 1850°F Advanced LCD Electronic Lock System: Backlit keypad Programmable PIN access Each user has individual PIN PINs may be created using 4-8 digits 5 digit factory access code setting Allows up to 7 users ( 1 manager with program override capability and (6) additional users) UL ETL Fire-Safe Electronic Safe is UL Classified 2-hour proven fire protection with impact ETL-verified for 2-hour fire protection of CDs, DVDs, USB Drives and Memory Sticks up to 1850 degrees Fahrenheit. Safe has advanced LCD electronic lock with backlit keypad, programmable PIN access, tubular key lock and six live-locking bolts. Features multi-position shelf, metal handle, multi-position drawer, key rack, door pocket and compartment for small items. Includes bolt-down hardware for added security. Holds standard and A-4 size papers, folders and binders. Weighs 135 lb. (61.2 kg.). Interior dimensions are 12-9/16" wide x 11-7/8" deep x 13-3/4" high (31.9cm wide x 30.2cm deep x 34.9cm high). Electronic safe holds 1.2 cubic feet (33.6 cubic liters). Adjustable Black Door Pocket Electronic Fire Resistant Fire-Safe Gunmetal Gray LCD Electronic Lock Metal Handle No OA3821 OA3821 Fire-Safe Electronic Safe Security Safe Sentry Group Sentry Safe Water Resistant www.sentrysafe.com
This SentrySafe MSW5839 FIRE-SAFE features an electronic lock and a tubular lock to ensure reliable security. Three multiposition trays, plus a door pocket, door tray and key rack, keep your valuables and important items organized.
0.47 ft³ 1 1 / Each 30% 3211-32 4.75" Height x 11.87" Width x 8.75" Depth Small Electronic Drawer Safe Mounting Hardware 4 x AA Batteries 2 x Keys Small Electronic Drawer Safe can easily be placed in a drawer or mounted to a wall. The door is made of heavy-duty 11 gauge steel, and the body is made of heavy-duty 14 gauge steel. Gray carpet with pressure-sensitive adhesive lines the inside. Electronic safe has an electronic keypad that requires an access code for entry. Faceplate removes to reveal a backup key lock in case of battery failure. Safe includes two keys, mounting hardware and four AA batteries. Buddy Buddy Products Electronic Gray No Security Safe Small Electronic Drawer Safe Steel Yes www.buddyproducts.com
This OEM Secustar electronic jewelry safe enables you to keep your prized possessions safe and secure. Mount this jewelry safe on the floor or on the wall. Program and store up to eight (8) pin numbers (digit codes) Opens with secret pin code or included keys (lock is hidden from view) Constructed of 0.125-inch thick solid steel Heavy-duty chrome steel dual 0.75-inch pin bolt throw system (not just latch) Concealed, tamper-proof hinges Hidden lock with two (2) keys Door measures 2-inches thick Carpet padding on inside bottom Two (2) pieces of 2.5-inch anchor bolts are included Outside dimensions: 13.75 inches long x 10 inches deep x 10 inches high Inside dimension: 13 inches long x 9.25 inches deep x 9.25 inches highFour (4) AA batteries required (not included) Mount on floor or wall
Key or keyless double security system Up to 8-Digit electronic combination code 2 Emergency keys with hidden lock Number display can be turned off for extra security Self programmable for maximum security Floor or wall mountable Standby battery pack uses 4 "AA" batteries (not included)
Electronic Security Safe secures most laptops and other valuables from theft. Features electronic lock with override key and two livelocking bolts removable shelf carpeted floor concealed hinges and armored steel construction for a formidable deterrent against theft and loss. Security cable offers access for a power cord and allows safe to be tethered for security. Safe includes boltdown hardware for added security. Holds 1.2 cubic feet (36.3 cubic liters). Interior dimensions are 163/4 wide x 125/8 deep x 101/2 high (423/5cm wide x 32cm deep x 263/5cm high). Weighs 35.1 lb. (15.9 kg.).
Fire Safe is ideal for storing and protecting important documents and valuables in the office or at home. U.L. classified up to one hour. Programmable electronic lock has a secondary tubular key lock. Design includes five livelocking bolts three dead bolts multiposition shelf and a locking drawer for small valuables. Wheels allow easy movement. Fire safe holds standard and A4 size paper folders and binders laid flat. Safe offers a 3 cubic foot capacity for storage and weighs 342 lb.
All of our Hotel safes are equipped with Electronic Keypad . This line of safes is an excellent choice for Hotels, Motels and sports clubs. Features: 1/4? thick solid steel-plate door 2 motorized active round locking-bolts 3/4? Dia. thick Electronic keypad for easy programming, code (4-6 digits) Velvet lined interior Management / Security bypass code Bright LCD display (Backlit) 4 pre-drilled anchor holes (Bottom) Mechanical key override Battery operated - 4 ?AA? batteries included One removable shelf (BG-34) Built-in audit-trail feature (Cost may vary) Model BG-23 Interior Dimensions 19-1/2"W x 7-5/8"H x 12-1/2"D Exterior Dimensions 19-3/4"W x 7-7/8"H x 15"D Weight 38 Lbs. Cubic Feet Capacity 1.07 Door Clearance 17-1/2"W x 6-1/4"H Anchor Holes 4 Interior Shelves None
Easy to programme 3-8 digit electronic security code.Pre-drilled anchor points for floor or wall mounting via 4 expanding steel bolts.Grey colour.Made from steel.Digital keypad with LED display.3 digit to 8 digit security code.Incorrect password entry alarm.Digital lock.2 keys included.2 x back up keys for manual override.4 locking bolts and metal hinges.2mm body thickness.Double locking steel bolts and concealed hinges.3mm door thickness.Floor mountable.Wall mountable.Low battery warning.Batteries required: 4 x AA (included).Internal size H24.6, W34.6, D19.2cm.External size H25, W35, D25cm.Capacity 23.3 litres.Weight 9.5kg.
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Electronic Locks and Combination Locks
Concept Questions: Current and Resistance?
A fuse is a device designed to break a circuit, usually by melting when the current exceeds a certain value. Fuses are widely used in electronic equipment, but have been replaced by circuit breakers in household wiring. In the "old days" people would sometimes replace a blown fuse with a penny, which happened to be the same size as a fuse. Was this a safe practice? Why
High-voltage power supplies are sometimes designed to have a rather large internal resistance as a safety precaution. Why is such a power supply with a large internal resistance safer than one with the same voltage, but lower internal resistance?
Can all combinations of resistors be reduced to series and parallel combinations?
Old-time Christmas tree lights had the property that, when one bulb burned out, all the lights went out. How are these lights connected, in series or in parallel? How could you rewire them to prevent all the lights from going out when one of them burned out?
Hi Alekz,
A penny can carry a great deal more current than a fuse, so the wiring in the home would not be protected from melting and causing a fire. The idea of the fuse is to be the weakest link in a safe, protected environment (Fuse box). Therefore, replacing a fuse with a penny is NOT a safe practice.
In the case of a short-circuit, if the power supply has a high internal impedence (resistance), the circuit voltage can drop across the internal resistance, thus reducing the current and reducing the opportunity for circuit damage. If the power supply has a low internal impedence, the short circuit current is not limited and can cause severe damage to human life.
The third part of your question is ambiguous. Do you mean can all values of resistance be created by using standard values in series and/or in parallel. If this is what you mean, then yes, they can.
The Christmas lights were connected in series. Rewire them in parallel, but be careful since in series, each light can only tolerate a voltage equal to a small portion of the total voltage (for 10 lights, each one operates at 1/10 of the mains voltage). If you simply rewire them all in parallel, they will all burn out since instead of 11/22 volts across each, there will be 110/220 volts...kapop!!
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