Guardline 1/4 Mile Extra Sensor | Guardline Security

Guardline 1/4 Mile Extra Sensor

$84.99

492   |  

Out of stock

Features


  • Additional sensor compatible with the Guardline 1/4 Mile Motion Alert. This sensor is not compatible with the 500 ft. Guardline Motion Alert
  • Add up to 4 sensors per zone (for a total of 16).
  • Sensor has a 40 ft detection range.
  • Weather-resistant and ready to withstand the elements
** As with all wireless products the maximum range is determined by the amount of interference between the sensor and receiver. Any obstruction in direct line of sight range will reduce the effectiveness of the signal between the individual units. For maximum distance reduce as much interference as possible.

Customer Reviews

4.5 Based on 492 Reviews
5 ★
77% 
381
4 ★
11% 
56
3 ★
4% 
21
2 ★
2% 
12
1 ★
4% 
22
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ST
05/07/2018
Steven T.
United States

Great product!

The Guardline arrived in a timely fashion. It was really easy to set up and get working. It is very effective at alerting of cars and people approaching the home. I am very pleased with this alert system and would definitely recommend your company and product to family and friends. Great product!

AT
09/11/2019
AMY T.
United States United States

Fantastic

I absolutely love that now I can hear the alerts from anywhere In my home. I use it to monitor my moms driveway, to keep her safe, it’s a wonderful product!

TH
09/11/2019
Tommy H.
United States United States

Good Security Equipment For The Cost.

Overall experience was good but trying to program each tone was definitely frustrating as I had to accept what tone the thing chose and some I do not like at all. I followed the direction line by line and still could not select the tone I wanted. But...the item work extremely well as my gate is more than 300 ft from the receiver and the sensor catches everything coming and going through my gate. Lousy tone though.

CK
09/11/2019
Cathy K.
United States United States

Great product!

We bought 3 sensors to put on our farm in strategic places. They work very well to let us know when someone enters our property. Our order was processed and received quickly.

RB
09/10/2019
Robert B.
United States United States

Three sensors

Happy with our Guardline driveway alarms. It is nice to know when someone is around the property.

Q: Looking at the 1/4 mile unit for my in-laws. They live in W NC. The driveway is up a gentle 15-20 degree slope with many trees on both sides of the road. How will the unit work with multiple sensors? Biggest concern would be the one at the bottom of the driveway as there are two 90 degree turns prior to getting to the main county road.
Answers (1)
A: Hi Mark, if your distance between sensor and receiver is under 1/4 mile, then this unit would be great for this because it has a stronger signal that allows it to fight through interference such as the hill and trees. Just remember, as you introduce more interference, your effective range will diminish little by little. Take care!
Q: In regards to the sensor: If it uses batteries to operate, how long do the batteries last? Is there an indicator light on the sensor to show how much power is left? Thanks
Answers (1)
A: The sensor batteries last about a year. If you live somewhere that gets really cold winters I recommend getting lithium batteries to ensure your sensor works year round. There's an LED on the receiver inside that will flash to alert you to low sensor batteries.
Q: Some of the pictures, of the sensor, have a shield on the top and some don't. Does the sensor unit come with this protective shield?
Answers (1)
A: The sensor comes with the sun shield bot both the 500 ft, and the 1/4 mile version.
Q: Can the sensor be mounted on a metal pole/pipe without any interference?
Answers (1)
A: We recommend not mounting on metal surfaces because they cause a great deal of interference with the sensor's signal. You can try it in the location. but if it does not work, the metal interference is most likely why.
Q: Will the wireless waves from the camera to the monitor be blocked by trees and hills?
Answers (1)
A: They will not be entirely blocked, but solid objects do degrade the signal strength. Basically, the system has a maximum range, and solid objects will make that range smaller. Certain items such as metal and stucco cause much more trouble that wood or drywall.

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