Intercom Systems Are Not Just For Calling The Teacher To The Principal’s Office
My earliest connection with intercom systems was the primary school intercom. We usually began the school day with news recited in measured tones via this device by the principal’s secretary. I don’t think anybody actually paid attention to any one of it but we obediently gave the impression of doing this for the reason that disembodied voice originated from on high, i.e. the principal’s office. Occasionally, the chirp of the intercom would interrupt lessons to call the teacher to the office. Of course, we all loved it when this happened because it meant we could make a big noise whilst the teacher was out of the room. Needless to say, we’d been told to maintain quiet and study the textbook while she vanished, therefore it was even more satisfying to know that we could possibly be heard all the way to the principal’s office.
It had been only several years later when I came to realize that intercom systems are intriguing gadgets with many applications. They are able to be wired or wireless and several even have video. There is certainly now even a wireless Bluetooth intercom system for motorcyclists to communicate with their passengers and with other motorcycles. But despite a few of their more exotic applications, intercom systems often exist quietly along the walls of homes and outside drive gates to the extent that we take their value for granted. The principal value of intercom systems is incorporated in the aspects of communication and security. As the name suggests, an intercom is really a device that allows intercommunication, which to my mind, distinguishes it from a public address system that announces only. Intercoms are found at exits in public garages to enable you to call someone to help you in case your exit ticket doesn’t work or the boom won’t rise. They are able to be used by the staff in hotels to tell Housekeeping to deliver up more towels and by patients in hospitals to call a nurse. In the home there are baby monitors to help keep an ear out for your baby, and those aforementioned intercoms along with a handset within the house and a speaker at the gate for visitors to announce themselves. If the intercom is linked to a computerized gate then you’ll be able to let people in and or out without going outside to open the gate. While it is a significant convenience to be able to open a gate from inside without going out, additionally it is a security risk and negates the worthiness of obtaining an intercom for security purposes. It really is all very well should you recognize the voice on the other side end but some people will open the gate to their apartment complex every time they hear a buzz without first checking to see exactly who is there.
As you can see, intercom systems add value in many different ways. Nevertheless, I will be still waiting for the time when my body corporate adds value to my life by going completely sci-fi and installing a video intercom system in my apartment complex. Not so that whoever is pushing the button can see me, you understand, but to ensure that I can see them. I wish to know who it is that has been pushing my intercom button in the middle of the night and then running away.
Wireless Home Intercom System
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Intertalk FM413 3 Channel Wireless Home Office Intercom System BUY FROM Amazon $69.99 |
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Samsung Video Door Entry System, 4 … |
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Nutone Replacement Push Button Bulbs (pbl-2) $2.85 Sold as each. 16 volts max. Fits most lighted push buttons. Fits all Nutone lighted push buttons. Card/2. Manufacturer number: PBL-2. Country of origin: United States. Distributed by Nautilus/Broan Mfg…. |
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Clarity Alertmaster 100 Notification System $62.34 - Clarity AlertMaster 100 notification system- Affordably designed for people with moderate to profound hearing loss- Ideal for the Deaf- For use in homes and offices- Flashes a connected lamp (not included) or activates a Personal Signaler (not included) when the telephone or the doorbell rings- Includes wireless doorbell (range up to 80ft.)- Distinct flashing patterns and lighted icons on unit h… |
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Sonic Alert DB200 Combination Doorbell/Telephone Wireless Signaler $94.10 The DB200 combination model features a built-in telephone signaler and outlet for connecting a lamp. Just plug the telephone cord into a modular telephone jack (does not draw from phone line power). (Optional extra sensor must be purchased for intercoms. See SA-DB100T.) Signals all Sonic Alert remote receivers. Five year warranty. Features: Selectable number of flashes Flash code for front door, r… |
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New – Netopia Timbuktu v.8.8 Pro – Complete Product – 2 User – SW2602P $219.00 General Information Manufacturer/Supplier: Motorola, Inc Manufacturer Part Number: SW2602P Brand Name: Netopia Product Name: Timbuktu v.8.8 Pro Marketing Information: Timbuktu Pro for Mac OS has been the standard for remote control on the Mac OS. With it’s simple setup, intuitive, user-friendly interface, and multiple security options, Timbuktu Pro for Macintosh is the best remote control choice f… |
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New – Netopia Timbuktu v.9.0 Pro – Complete Product – 2 User – SW2502P General Information Manufacturer/Supplier: Motorola, Inc Manufacturer Part Number: SW2502P Brand Name: Netopia Product Name: Timbuktu v.9.0 Pro Marketing Information: With its simple setup, intuitive, user-friendly interface, and multiple security options, Timbuktu Pro for Windows is the best remote control choice for your home, classroom or small business. With Timbuktu Pro, you can view the scre… |
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Electronic Circuits for the Evil Genius: 57 Lessons with Projects $20.00 There is truly a lack of good, basic hardwire electronic “how-to” books. The market seems interested in this type of fun project compilation. This is another book in our extremely successful “Evil Genius” series. So far, each of the books has sold about $50,000 in less than 3 months. The perfect addition to our “Evil Genius” series, this book details everything an electronics hobbyist would want t… |
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$114.83 shipped–$114.03 shipped–ZDL-F0040 4-Way Doorbell Doorphone Intercom Security System White (White) EMS Shipping $114.83 This doorbell phone system allows you to talk to visitors before opening the door. |
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7 LCD SY801MA Video Doorbell Door Phone – 1 Monitor 2 CCD Camera $168.99 This is the 7″ LCD SY801MA Video Doorbell Door Phone Intercom with 1 Monitor and 2 CCD Camera Station, with it you can see who is at the door before you open it and you can even communicate with them through this intercom without having to open the door at all. This 7″ LCD SY801MA Video Door Phone Intercom provides a clear image of your visitor. It is artistically designed home or business use. |
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7 LCD SY802M Video Doorbell Door Phone – 1 Monitor 1 CCD Camera $129.99 This is the 7″ LCD SY802M Video Doorbell Door Phone Intercom with 1 Monitor and 1 CCD Camera Station, with it you can see who is at the door before you open it and you can even communicate with them through this intercom without having to open the door at all. This 7″ LCD SY802M Video Door Phone Intercom provides a clear image of your visitor. It is artistically designed home or business use. |
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7 LCD SY802M Video Doorbell Door Phone – 2 Monitor 1 CCD Camera $225.99 This is the 7″ LCD SY802M Video Doorbell Door Phone Intercom with 2 Monitor and 1 CCD Camera Station, with it you can see who is at the door before you open it and you can even communicate with them through this intercom without having to open the door at all. This 7″ LCD SY802M Video Door Phone Intercom provides a clear image of your visitor. It is artistically designed home or business use. |
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7 LCD SY802M Video Doorbell Door Phone – 2 Monitor 2 CCD Camera $229.99 This is the 7″ LCD SY802M Video Doorbell Door Phone Intercom with 2 Monitor and 2 CCD Camera Station, with it you can see who is at the door before you open it and you can even communicate with them through this intercom without having to open the door at all. This 7″ LCD SY802M Video Door Phone Intercom provides a clear image of your visitor. It is artistically designed home or business use. |
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7 LCD SY802M Video Doorbell Door Phone – 3 Monitor 1 CCD Camera $269.99 This is the 7″ LCD SY802M Video Doorbell Door Phone Intercom with 3 Monitor and 1 CCD Camera Station, with it you can see who is at the door before you open it and you can even communicate with them through this intercom without having to open the door at all. This 7″ LCD SY802M Video Door Phone Intercom provides a clear image of your visitor. It is artistically designed home or business use. |
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802MB22, 7inch Full Color Hands Free Video Door Phone Monitor Security Kit, with Infrared Night-vision Function (2 to 2) $247.77 Home Wired Color Video Doorphone Systems. 2 pcs Outdoor Home CCTV Security Camera with 6LEDs Lamp, and 2 pcs 7inch TFT LCD Screen Functions Monitors, Visual Intercom Bell, Call, Door-key, Non-lift Answer, No Disturber, 92 Degree Viewing Angle, for Family and Residential Area Use. Specification: Screen Size: 7 inch TFT, 16:9 Display. Resolution: 480 x RGB x 234. Power Input: AC100V-240V 50Hz/60Hz. Power Output: DC15V. Current Output: 1200MA. Valid Distance: 50M(4 x 0.65MM2). Power Consumption: Static state < 0.5W, Calling < 10W6. Tramsmitting Distance of the Image: about 200M. Viewing Angle: 92 degree. Size: 154.08 (H) x 86.58 (V)mm. Features: Aluminum alloy panel of indoor unit, fashionable and luxury. Water and oxidation-proof, durable aluminum alloy made outdoor station. 7 inch color TFT LCD. No radiation, low power consumption and high definition. The camera could be turned up/down/left/right which make the definition high. Handfree intercom. Electric lock-control function. Monitor the view out of the door. 16 kinds of rings for your options. Volume, brightness and contrast adjustable. With swithch-adapter and 5m cable, users could install it by themself. Item Includes: 2 x Indoor unit; 2 x Outdoor unit; 2 x 12V/1.2A power supply; 1 x Users manual; 1 x Bag of Screw package; 3 x 5M Cable |
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8IN IN-CEILING 45 OHM SPKR FOR $91.19 Nutone 8 2-Way Intercom Speaker |
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AT&T TL90078 Handset $39.63 Cordless accessory handset is designed for use with DECT 6.0 Bluetooth Cordless Phone System and offers Bluetooth technology so you can swap between cellular and home line calls. Expansion handset offers DECT 6.0 digital technology, Caller ID/Call Waiting and speakerphone. Caller ID includes a 50 name/number history, display dial, missed call indicator, new call indicator and voicemail waiting indicator. Handset features a 50 name/number phonebook directory, blue lighted keypad, call transfer, volume control, intercom, large blue lighted display, last five-number redial, mute, page, and ringer volume control. Wireless network-friendly handset is AC powered. |
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AT&T TL91278 DECT 6.0 Cordless Phone With Bluetooth $59.95 The AT&T TL91278 DECT 6.0 cordless phone is great for any home or business. Featuring Bluetooth wireless technology you can easily connect your Bluetooth compatible cell phone with the hand receiver and carry on your conversation. Equipped with DECT 6.0 technology for clearer, more natural sounding voices that won’t conflict with other electronics in your home such as Wi-Fi networks, baby monitors, etc. It has Caller ID* and Call Waiting compatibility so you can know who called while you were out or already on the line. Equipped with 50 name and number Caller ID memory as well as 50 name and number phone directory you can have your most important phone numbers readily available. The AT&T TL91278 cordless phone also features selectable volume control, page/find locator, and flash, redial, hold, intercom and conference calling, and mute functions. Comes with rechargeable batteries and power adapter. |
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Audel Practical Electricity $40 Everything begins with the basics To succeed in any of today s electrical specialties, you must first understand the fundamentals. This concise guidebook, fully updated and revised to comply with the National Electrical Code, provides that solid foundation in electrical theory, circuitry, and common applications. Whether you re pursuing an electrical career, need a refresher course, or simply want to understand the wiring in your home, you ll learn the basics from this book. Examine the fundamentals of magnetism and electric-ity, conductors, insulators, and circuits Study common applications including house wiring, lighting, cables, electric heating, and generating Become familiar with test procedures and electromagnetic induction Understand inductive and capacitive AC circuits and the principles of alternating current Explore alarm and intercom wiring, home circuiting, and multiple switching Find out how generating stations and substations function Learn from clear, specific text, functional illustrations, and review questions in every chapter |
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Audel Practical Electricity $7.04 Everything begins with the basicsTo succeed in any of today’s electrical specialties, you must first understand the fundamentals. This concise guidebook, fully updated and revised to comply with the National Electrical Code,® provides that solid foundation in electrical theory, circuitry, and common applications. Whether you’re pursuing an electrical career, need a refresher course, or simply want to understand the wiring in your home, you’ll learn the basics from this book.Examine the fundamentals of magnetism and electric-ity, conductors, insulators, and circuitsStudy common applications including house wiring, lighting, cables, electric heating, and generatingBecome familiar with test procedures and electromagnetic inductionUnderstand inductive and capacitive AC circuits and the principles of alternating currentExplore alarm and intercom wiring, home circuiting, and multiple switchingFind out how generating stations and substations functionLearn from clear, specific text, functional illustrations, and review questions in every chapter |
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Cat 5 Intercom Room Unit $58.18 Cat 5 Intercom Room Unit |
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Cat 5 Intercom module and main $506.74 Cat 5 Intercom module and main |
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Coleman Cable #70102-66-32 500′ 20/2 Bell Wire $47.7 500′, 20/2, Bell & Intercom Wire, Unjacketed, Twisted, 13A, Low Voltage, Spooled. |
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Coleman Cable 4 Conductor Phone Wire 96238-05-09 – Pack of 500 $54 Power limited circuit and communication cable for non-riser applications. Used in control signaling systems and Intercom/PA . Systems approval for UL Type CM/CL2-CMX outdoor Article 725 and 800. 22/4 wire gauge/conductor. Solid copper stranding.015 nominal jacket thickness.117 nominal outside diameter. 500 length. Length: 6.5. Width: 6. Height: 6.5 |
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Coleman Cable Area Network Cable Category 3 96204-05-33 – Pack of 500 $67.5 Power limited circuit and communication cable. Used in remote control signaling security systems and Intercom/PA systems Sound/Audio and Nurse Call. NEC Article 725 and 800 Canadian Type CMG/FT4 and California State Marshal. 24 AWG. 4 conductors. Solid copper stranding. Category 3.018 nominal jacket thickness.180 nominal outside diameter. 500 length. Length: 5. Width: 3. Height: 6 |