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Doorbell Wire Check product guide

Chamberlain myQ Video Doorbell (MYQ-D49TXXB), Black

A door with or without wiring, with doorbell wiring if you want the old chime

The myQ Video Doorbell is a 2K, 150 degree doorbell with a built-in battery that can also run from a 24V AC doorbell circuit. Wired, it keeps your existing chime ringing; on battery, it does not, and a myQ chime is listed as coming soon. Livestream and motion alerts are free, while recordings and smart detection need a myQ Video Monitoring Plan.

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Published specifications

  • Chamberlain: 2K with colour night vision; 150 deg wide angle
  • Chamberlain: battery or wired; PIR motion detection
  • Guide: charge 4-6 hours; USB-A plug not included
  • Guide: wired mode rings your existing chime; battery mode does not
  • Chamberlain: -4 to 122 F (-20 to 50 C); 5.71 x 1.89 x 1.34 in
  • Chamberlain: 1-year warranty, authorised US or Canada sellers only

Fit and limits

Strengths

  • Wired mode keeps your existing chime and needs no charging
  • Livestream, motion detection and alerts work with no subscription
  • myQ Smart-Secure can lock myQ-compatible doors on person detection, with a plan

Caveats

  • On battery your existing chime won't ring, and the myQ chime is 'coming soon'
  • Recordings, smart detection and zones all need a paid Video Monitoring Plan
  • No stated battery capacity, battery life or IP rating in Chamberlain's documents

What the myQ Video Doorbell is, and what is in the box

This is Chamberlain's myQ Video Doorbell, US model MYQ-D49TXXB, a 2K doorbell with a built-in rechargeable battery that can also run from doorbell wiring. It is set up and used through the myQ app, and the guide pairs it over Bluetooth during setup.

The installation guide's box list is short: the doorbell, a flat mounting bracket, a USB-A to USB-C charging cable, two security screws, two mounting screws and two wall anchors. There is no charging plug; the guide says a USB-A charging brick is not provided. There is also no wedge or angled bracket in the list, and no chime.

Chamberlain's specification table gives a 150 degree wide-angle view, 2K video with colour night vision, two-way talk through a speaker and microphone, PIR motion detection with notifications, and dimensions of 5.71 by 1.89 by 1.34 inches. The guide's parts diagram also shows an IR light and a passive IR sensor on the front.

Wired or wireless: the chime decides it

The guide's comparison table makes the trade-off clear. Wired, the doorbell is powered by your existing doorbell wires, does not need charging, and can trigger your existing wired chime. Wireless, it runs on the built-in battery, you recharge it with the USB-C cable, and your existing wired chime will not ring when the button is pressed.

For wireless installs the guide says an optional myQ chime accessory is "coming soon", and the listing uses the same words for a myQ Wireless Chime. Until one is available, a wireless install means relying on phone alerts for rings. Both modes need Wi-Fi; wired placement is limited to where the wires are, and wireless can go anywhere by the door.

The guide's only electrical detail is that you disconnect power to the 24V AC doorbell circuit before a wired install, and it describes the wires as low voltage. It gives no transformer VA rating. We are not reproducing the wiring steps; if you are not comfortable with them, use the wireless mode or an electrician.

Charging and battery

The guide says charge time varies, puts it at 4 to 6 hours, recommends charging overnight, and that the doorbell should be fully charged before first use whether it will run on battery or on wiring. The LED turns solid green when charging is complete, per the guide, so check it before you mount the doorbell.

Charging happens through a USB-C port behind a charging port cover. The listing says to remove the doorbell from its mount and charge it with the included USB-C cable, so plan for the doorbell to be off the wall while it charges.

Neither Chamberlain document read states a battery capacity or a battery-life figure, so we cannot give one. The status LED blinks red when the doorbell is too hot or too cold, and the rated operating range is -4 to 122 F (-20 to 50 C). The guide also says to avoid direct sunlight when choosing a spot.

What works without a plan, and what needs one

The guide says livestream video, motion detection and alerts work without a subscription. Everything else in its plan table needs a Video Monitoring Plan: event recordings, face, person, animal and vehicle detection, detection zones and myQ Smart-Secure. Its troubleshooting table confirms that seeing recorded videos needs the paid subscription. A free 30-day trial is included.

The documents name the plans differently. The guide's table shows a 7-Day Plan and a 30-Day Plan, with multiple devices only on the 30-Day Plan. The Amazon listing names an Essential Plan with 14-day history and an Ultra Plan with 30-day history. We did not read myQ's plan pages, so check the current names and history lengths before you commit.

Two plan features are worth knowing. The guide says face detection is supported in the US and Canada but excludes the state of Illinois. myQ Smart-Secure can automatically lock myQ-compatible doors and your garage when a person is detected during scheduled times. The listing also lists package detection, which neither Chamberlain document includes.

Mounting and the security screw

The guide recommends mounting 48 to 50 inches (122 to 127 cm) above the ground. On masonry it calls for a 1/4 inch mortar bit and a hammer drill, and the box includes two wall anchors. On wood it calls for a 1/16 or 3/32 inch pilot hole about 1/2 inch deep.

One caution stands out: do not use a power tool to tighten the bracket screws, because it can crack the mounting bracket. The doorbell is then locked in place with a small security screw, using a Philips #1 screwdriver.

If you lose screws, the guide lists replacements: #6 by 1 inch wood screws for the bracket, an M2 by 7 mm machine screw for the security screw, and M3 by 7 mm screws for the wire terminals. The box includes two security screws, so there is one spare.

Warranty and what the sources do not cover

Chamberlain's specification table and the guide both give a one-year warranty. The guide's wording limits it to the first consumer purchaser and says it applies only to products bought from Chamberlain or an authorised reseller in the US or Canada; claims on products from unauthorised sellers may be rejected. Confirm the seller before you buy.

Neither Chamberlain document gives an IP rating; the listing says only water resistant. Neither gives a battery capacity, a weight or a night-vision range. The listing's weight of 13.1 ounces is a listing figure we could not confirm.

For tools, the guide lists Philips #1 and #2 screwdrivers and a drill, with a 3/32 inch pilot bit for the wall anchors. Setup is done over Bluetooth in the myQ app, so keep your phone's Bluetooth on during installation.

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Primary sources

  1. Chamberlain MYQ-D49TXXB Video Doorbell product page and specs
  2. myQ Video Doorbell installation guide 114-6127-000 (Chamberlain)

Primary sources checked .

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