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2GIG-DW20R-345 - 2GIG Wireless Recessed Door/Window Alarm Contact

2GIG-DW20R-345 - 2GIG Wireless Recessed Door/Window Alarm Contact
2GIG-DW20R-345 - 2GIG Wireless Recessed Door/Window Alarm Contact
Item# 2GIG-DW20R-345

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List Price: $38.45
Your Price: $25.64
Availability: In Stock
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2GIG-DW20R-345 Product Description:


The 2GIG-DW20R-345 is a recessed wireless door and window contact that disappears in the shadow of the door or window frame, leaving intruders unaware of the protected entrance. This small frame sensor is so sensitive, that it can detect even the softest opening and closing of the entrances, making it a great option for enforcing curfew as well. The 2GIG-DW20R-345 communicates wirelessly with the control panel via the 345 MHz frequency. Powered by a replaceable three-volt lithium battery, the DW20R-345 sensor will last around five years with normal use.

Product Features:

  • Compact size, only 2-1/2" long
  • Fully supervised
  • Rare earth magnet
  • Lithium battery
  • 345 MHz
  • ETL Listed

2GIG-DW20R-345 Product Specifications:


  • Wireless Signal Range: 450 ft (137.2 m), open air, with Wireless Control Panel
  • Code Outputs: Alarm; Alarm Restore; Supervisory; Low Battery
  • Transmitter Frequency: 345.00 MHz (crystal controlled)
  • Unique ID Codes: Over one (1) million different code combinations
  • Supervisory Interval: 70 minutes
  • Magnet Dimensions (H x D): 0.5 x 0.75 in (1.27 x 1.9 cm)
  • Magnet Type: Rare Earth
  • Sensor Dimensions (H x D): 2.57 x 0.75 in (6.53 x 1.9 cm)
  • Weight (including battery & magnet): 1.25 oz (35.4 g)
  • Housing Material: ABS Plastic
  • Color: White
  • Operating Temperature Limits: 32° to 120°F (0° to 49°C)
  • Relative Humidity: 5-90% Non-Condensing
  • Battery (included, not installed): One (1) 3V CR-2 or equivalent Lithium battery
  • Certification: Anatel, ETL, FCC, IC, and NOM

2GIG-DW20R-345 Installation Guidelines:


  • Mount Sensors within 100 ft (30 m) of the Control Panel: Although the transmitter may have a range of 450 ft (137.2 m) in open/unobstructed situations, the environment at the installation site can have a significant effect on transmitter range.
  • Install the Recessed Sensor in the Door or Door Frame: It is important to select the proper placement of the recessed sensor/transmitter and magnet. The sensor comes with two different tops, however, the screw mount is recommended for securing the sensor to a door frame. The magnet does not have a second top with a flange to screw it into place so you must be extremely careful to ensure that the magnet is tightly in place upon installation.
  • Use Screw Mount to Secure the Sensor to a Door Frame: The magnet does not have a second top with a flange to screw it into place so you must be extremely careful to ensure that the magnet is tightly in place upon installation. The door contact can be mounted in either the door jamb or door frame. The best practice is to mount it in the door frame.

2GIG-DW20R-345 Product Includes:


  • (1) Recessed Door/Window Contact
  • (2) Plastic Door Contact Covers
  • (2) Plastic Two?Hole Screw Mount Contact Covers
  • (2) Phillips Head Screws
  • (2) Plastic Magnet Caps
  • (1) Rare Earth Magnet
  • (1) Lithium Battery

Product Reviews

Other customers rated this item:
5 out of 5 stars
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  Easy Install,
Posted By:
14 people found this review helpful

Install was very straight forward, I feel much more comfortable knowing that it is really securely installed.

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  Great device. Highly recommended.,
Posted By:
15 people found this review helpful

Purchased these for my daughter's house at college. Put these alarms on all the first-floor & basement windows. They were so easy to install! They can be turned on and off. The alarm is extremely loud when triggered which we feel would be a great deterrent if someone tried to break in.



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  Worth the money!,
Posted By:
16 people found this review helpful

We replaced a dual French door in our master bedroom and needed new sensors and magnets for our ADT alarm system, and this worked great, just like the original sensor but much cheaper. Happy with my purchase.

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  Alarm System,
Posted By:
16 people found this review helpful

Worked fine. Great value and quick delivery. I would purchase this again.



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  Good product and very durable,
Posted By:
13 people found this review helpful

This is a very useful product because it allows me to use the existing wires in the wall to install a new sensor. Screws hold firmly and are well slotted for good grip.



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  Great for replacing old sensors,
Posted By:
14 people found this review helpful

Bought these to replace some older broken sensors that we had around the house. They were easy to install and fit perfectly, All worked properly.

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  hidden door contact sensor,
Posted By:
14 people found this review helpful

Love that these are hidden much better than the unsightly sensors I was using before. Work perfectly and the battery will be easy to change when the time comes. Very satisfied


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  Great functionality.,
Posted By:
15 people found this review helpful

The sensors themselves can be used with the honeywell systems as well. It works as advertised and haven't had any issues with the sensor acting up. I will highly recommend these to those who has the Honeywell Lynx series systems.

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