2GIG Recessed Door Contact

Why Choose This with Smart Shield Systems

• Pro drilling & alignment: We bore the correct 11/16″ holes, set proper depths, and align magnet/sensor for dependable trips.

• Discreet finish: Hardware disappears once the door is closed—great for premium trim and painted finishes.

• Clean programming: We enroll and label the zone, verify supervision/tamper/low-battery reporting, and test RF range.

Key Features

• Hidden, recessed install with compact sensor body and rare-earth magnet.

• Long wireless reach: up to ~450 ft open air to a 2GIG wireless panel (plan for less indoors).

• External input capable: accepts N/C dry-contact devices if you want to monitor a second switch at the same opening.

• Fully supervised: reports alarm/restore, supervisory, and low-battery events.

• Encrypted option available for eSeries panels.

Product Specifications (At-a-Glance)

• Model: 2GIG-DW20R-345 (recessed door/window contact)

• Frequency / Modulation: 345.000 MHz, ASK-OOK; supervisory ~70 min.

• Open-air RF range: ~450 ft (nominal).

• Magnet gap / sensitivity: 0.625″ minimum, ~0.85″ typical trip.

• Power: 1× CR2032 3 V lithium coin cell; ~5-year typical life.

• Dimensions: Sensor ≈ 2.57″ × 0.75″; Magnet ≈ 0.5″(H) × 0.75″(D).

• Install details: drill 11/16″ bores; typical depths ≈ 2.6″ frame and ≈ 0.5″ door (follow the install guide).

• Operating environment: 32–104 °F (0–40 °C); 5–95% RH, non-condensing.

Compatibility Notes

• Works with 2GIG 345 MHz panels (and other systems that accept 2GIG-345 sensors). An encrypted eSeries recessed version is available for GC2e/GC3e/EDGE. We’ll verify your panel radio and recommend the right model.

Popular Use Cases

• Front/back doors where hardware should be completely hidden

• French/casement doors with clean trim lines

• Windows where surface contacts would be visible

Frequently Asked Questions

What size hole do you drill?

Use an 11/16″ bit. Typical depths are about 2.6″ into the frame for the sensor and ~0.5″ into the door for the magnet; we align them directly opposite for reliable operation.

How far will it reach the panel?

Spec is ~450 ft open air; indoor range depends on construction. We test RF during commissioning and aim for conservative distances to the receiver.

What battery does it use and how long will it last?

A CR2032 coin cell with ~5-year typical life. Your panel/app will alert on low battery.

Is there an encrypted version?

Yes—2GIG notes an encrypted eSeries version is available for compatible panels (we’ll specify it when your system supports eSeries).

Ready for a Truly Hidden Contact?

Smart Shield Systems will drill, align, and enroll your 2GIG-DW20R-345, verify supervision and event reporting, and keep your trim pristine—security you don’t see, but always feel.