Buy at Smarthome - Sensors - Security System Sensors

Know when a person or vehicle approaches your home or business with this wireless visitor announcement system. More info...

Part # 7135AS

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Sale $112.99 $164.99

17 customer ratings 17 Customers rated this product 4.5 Stars

For garage doors, roll up doors and other doors where it may be difficult to mount regular magnetic contacts. More info...

Part # 7455

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Sale $11.49 $14.99

51 customer ratings 51 Customers rated this product 4.5 Stars

Monitor motion at a driveway entrance, backyard, basement with this flexible wireless motion sensor. Use in conjunction with a wireless receiver (#7135SR or #7135CR). More info...

Part # 7135ST

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Sale $69.98 $89.99

5 customer ratings 5 Customers rated this product 4.5 Stars

Here is the most basic sensor of any alarm system. These contact switches are ideal for doors, windows, and sliding doors. These magnetic contact switches are for open circuit systems. More info...

Part # 7040

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Sale $5.98 $5.99

44 customer ratings 44 Customers rated this product 4.5 Stars

Here is the most basic sensor of any alarm system. These contact switches are ideal for doors, windows, and sliding doors. These magnetic contact switches are for closed circuit systems. More info...

Part # 7113

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Sale $1.61 $2.99

121 customer ratings 121 Customers rated this product 5 Stars

Here is the most basic sensor of any alarm system. These contact switches are ideal for doors, windows, and sliding doors. These magnetic contact switches are for closed circuit systems. More info...

Part # 7113-10

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Sale $16.10 $26.99

23 customer ratings 23 Customers rated this product 5 Stars

This surface-mount switch is the most basic sensor of any alarm system. Use it to monitor the opening and closing of doors, windows and entry points to your property. More info...

Part # 77414

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$2.99

2 customer ratings 2 Customers rated this product 4 Stars

Protect your home by enhancing your security system with these magnetic contact sensors for normally open applications. More info...

Part # 7040-10

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$54.99

1 customer rating 1 Customer rated this product 3 Stars

Enjoy free, monitored intrusion detection 24 hours a day with this combination standard telephone, motion sensor, and microphone. If someone enters your home, the phone will call you at any number you specify and allow you to listen in for 30 seconds. More info...

Part # 5275

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Sale $59.15 $84.99

3 customer ratings 3 Customers rated this product 3.5 Stars

Almost any building can be protected from intrusion with ease because of the Door/Window Sensor's small size, flexible mounting configurations, and sensitivity. More info...

Part # 7504

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Sale $44.77 $49.99

2 customer ratings 2 Customers rated this product 1.5 Stars

Detects smoke or carbon monoxide and provides custom voice alerts. Also features ONELink which allows the alarm to talk to up to 16 other ONELink-enabled detectors in your home. More info...

Part # 7983

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Sale $72.22 $99.99

1 customer rating 1 Customer rated this product 5 Stars

4 zone wireless receiver responds to signals from the wireless motion sensor and produces chime tones. Also has a single relay output for automation or security. More info...

Part # 7135CR

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Sale $72.22 $101.99

1 customer rating 1 Customer rated this product 5 Stars