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Expand your Voice Alert System with up to six of these extra sensors. More info...

Part # 7138T

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$69.95

24 customer ratings 24 Customers rated this product 4.5 Stars

Chamberlain Add-On Sendor for Wireless Motion Alert System Up to 1/2 mile range - alerts when light and sound when vehicles or pedestrians are approaching Convenient and affordable safety system More info...

Part # 7203

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Sale $29.38 $49.99

46 customer ratings 46 Customers rated this product 4.5 Stars

The Optex TD-20U Indoor/Outdoor Wireless Infrared Transmitter is a great addition to your Optex Wireless 2000 and 1000 Annunciator systems, broadcasting signals up to 2,000 feet to your Optex receivers. More info...

Part # 7136ST

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Sale $63.86 $90.00

11 customer ratings 11 Customers rated this product 5 Stars

Feel secure in your home by knowing when movement is detected or deter and scare off would-be intruders by installing the Skylink HA434RTL Wireless Motion Alert Kit. More info...

Part # 73109A

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Sale $30.85 $51.59

9 customer ratings 9 Customers rated this product 4.5 Stars

The Optex RC-20U Wireless Chime is a great addition to your Optex Wireless 2000 and 1000 Annunciator systems, alerting you of perimeter breaches with one of three different tones from up to nine transmitters. More info...

Part # 7136CR

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Sale $69.97 $101.99

3 customer ratings 3 Customers rated this product 5 Stars

Install this garage door sensor that alerts you to the status of your garage door with audio and visual indicators. More info...

Part # 7311GD

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Sale $18.96 $34.19

86 customer ratings 86 Customers rated this product 3.5 Stars

This sensor is designed to detect motion inside or outside of your home, sending a wireless signal to the Household Alert Receiver. More info...

Part # 7311MS

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Sale $15.92 $24.29

65 customer ratings 65 Customers rated this product 3.5 Stars

This sensor and receiver kit is designed to monitor movement around your house, notifying you instantly if motion is detected via audible and visual indicators. More info...

Part # 7311M

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Sale $21.67 $36.89

99 customer ratings 99 Customers rated this product 3.5 Stars

Don't be startled by visitors. This wireless driveway alert system installs easily with no underground wiring, has sensitivity adjustment up to 30', and can transmit up to 300'. More info...

Part # 89335

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Sale $69.99 $89.99

The UltraEYE series uses multi-lens technology to provide the maximum in safety enhancement. The semi-spherical lens has 120 individual active zones and 2 sensors for ultimate detection range & precision. More info...

Part # 4652W

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Sale $65.21 $95.99

14 customer ratings 14 Customers rated this product 4.5 Stars

This sensor is designed to detect water overflow, water leakage, or rising water, sending a wireless signal to the Household Alert Receiver. More info...

Part # 7311WA

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Sale $13.77 $22.49

22 customer ratings 22 Customers rated this product 4.5 Stars

This easy-to-set-up magnetic sensor works by sending a wireless signal to the Household Alert Receiver, which in turn notifies you immediately of the door or window breach with both audio and visual indicators. More info...

Part # 7311DS

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Sale $12.42 $22.49

48 customer ratings 48 Customers rated this product 4 Stars

Alert Systems