How to Wire and Install Reolink Video Doorbell WiFi (2nd Gen) – Step-by-Step Guide

Installing a smart video doorbell can dramatically improve your home security and convenience. The Reolink Video Doorbell WiFi (2nd Gen) offers crisp video, two-way audio, and smart alerts, but proper wiring is essential for reliable performance. Whether you're replacing an old doorbell or starting from scratch, this guide walks you through every step of the wiring and connection process.

We'll cover the tools you need, how to check your existing transformer, wiring the doorbell to a chime and transformer, mounting the unit, and connecting it to the Reolink app. By the end, you'll have a fully functional smart doorbell that works flawlessly with your home network.

What You Need Before You Begin

Before touching any wires, gather the necessary tools: a voltage tester, screwdriver, wire strippers, small drill bits (if mounting on brick or stucco), and a level. You'll also need the Reolink Video Doorbell WiFi (2nd Gen) kit which includes the doorbell unit, mounting bracket, screws, and wire nuts. If your existing doorbell transformer is too weak (below 16V AC/10VA), you may need to upgrade it. A standard doorbell transformer of 16–24V AC is recommended.

Also ensure your Wi-Fi signal reaches your front door. If coverage is weak, consider a mesh extender or look into the Reolink Altas PT Ultra for a wire-free alternative. But for this guide, we're focusing on a wired installation that gives you constant power and reliable operation.

• Voltage tester – verify power is off before touching wires
• Wire strippers – cleanly expose copper without damage
• Level – align the doorbell straight on your door frame or wall

Checking Your Existing Doorbell Wiring and Transformer

Most homes have an existing doorbell system with a transformer (usually in the basement, garage, or near the electrical panel) and a mechanical chime inside. Use a voltage tester to measure the transformer output when the doorbell button is pressed (or if you have a multimeter, measure across the two transformer terminals). You need at least 16V AC with a 10VA rating. If your transformer is lower, replace it with a compatible one before installing the Reolink Video Doorbell WiFi.

If you have no existing doorbell wiring, you can still run new low-voltage wire from the transformer location to the door. This involves fishing wire through walls, which may require professional help. In such cases, a battery-powered option like the Reolink Argus 4 Pro might be simpler, but for the best experience, wired power is recommended.

• Transformer must be 16–24V AC, 10VA or higher
• If unsure, consult an electrician for safety

Step-by-Step Wiring the Reolink Video Doorbell WiFi (2nd Gen)

Start by turning off power to the doorbell circuit at the breaker box. Remove your old doorbell button and disconnect its wires. The Reolink Video Doorbell WiFi uses two wires: one from the transformer (typically labeled 'Front' or 'Trans') and one that goes to the chime (labeled 'Chime'). At the chime, you'll need to connect the included diode (comes with the doorbell) across the 'Front' and 'Trans' terminals to avoid buzzing. Follow the printed wiring guide in the box or the app’s in-wizard instructions.

At the doorbell location, connect the two wires to the terminals on the back of the Reolink Video Doorbell WiFi. Polarity does not matter for AC wiring. Screw them tightly. Then mount the backplate onto the wall using the provided anchors and screws. Attach the doorbell unit to the plate until it clicks. Restore power and check for a solid blue LED indicating it's receiving power. Then proceed to the app setup.

• Always double-check that power is off before touching wires
• Use the wire nuts if your wires are too short to reach the terminals directly

Connecting to the Reolink App and Final Adjustments

Download the Reolink app on your smartphone and create an account if you haven't already. Scan the QR code on the doorbell or its packaging to add the device. Follow the in-app instructions to connect to your Wi-Fi (2.4 GHz is recommended for stability). Once connected, you can adjust motion detection zones, enable push notifications, and set up recording to a microSD card or an NVR like the rlk8-1200d4-a-new-version-with-perimeter-protection-219359">RLK8-1200D4-A (New Version with Perimeter Protection) for continuous recording.

If you have a mechanical chime, test it by pressing the doorbell. It should sound without buzzing. If it buzzes, revisit the diode installation at the chime. Also adjust the angle using the wedge mount if your view is obstructed. The Reolink Video Doorbell WiFi offers a wide 180-degree field of view, so a small tilt can make a big difference.

• Use the Reolink app's 'Device Settings' to fine-tune monitoring schedules and alerts
• For chime types, choose between mechanical and digital in the app settings

Troubleshooting Common Wiring Issues

If the doorbell doesn't power on, check the transformer voltage with a multimeter while the doorbell is connected. A drop below 14V typically indicates an underpowered transformer. Also ensure the wiring connections are tight and the diode is correctly installed (many chime issues arise from a missing or reversed diode). If the Wi-Fi connection is weak, consider moving your router closer or using a Wi‑Fi extender. The Reolink Video Doorbell WiFi supports 2.4GHz and 5GHz, but 2.4GHz offers better range.

If you're replacing a damaged chime, note that some smart doorbells work best with a digital chime or no chime at all. The Reolink Video Doorbell WiFi includes a built-in chime bypass mode if you prefer to disable the indoor chime and rely solely on phone alerts. For advanced setups, you can integrate with a Reolink NVR such as the RLK8-1200D4-A to store 24/7 footage without relying on cloud subscriptions.

• Buy a replacement transformer (16V AC, 30VA) from any hardware store
• Factory reset the doorbell by holding the setup button for 10 seconds

Wiring the Reolink Video Doorbell WiFi (2nd Gen) is straightforward if you follow these steps and take safety precautions. Once installed, you'll enjoy clear 2K video, smart person detection, and seamless integration with your existing doorbell wiring. For extended recording and local storage, pair it with the RLK8-1200D4-A (New Version with Perimeter Protection) NVR. Upgrade your front door security today – it's a smart investment that pays off in peace of mind.