First, please review the Latch Water Sensor installation guide here (Click here to download).

The following steps cover how to install a Water Sensor. For any questions about this process, please contact our Customer Support team at support@latch.com.

1. Add the Water Sensor to the Property and Unit using the Manager App on your iOS device.
2. Remove the Water Sensor from the packaging and prepare it for installation. Do not yet insert the battery.
3. When you’re ready to begin the pairing process, tap the Pair button on the Manager App. The Hub will enter pairing mode and start to look for the Water Sensor.
4. Insert the battery into the Water Sensor and confirm the light on top begins to blink rapidly. The Water Sensor will enter pairing mode for 30 seconds and begin to communicate with the Hub.
5. Once paired successfully, you will see a success message in the Latch Manager App
6. If deploying the Water Sensor on the floor, the probes should face the floor. If mounting on the wall, connect the external extension probe. Remove the waterproof plug that covers the USB interface and connect the extension water probe to the device.

Note: In order for the sensor to work, both probes on the external extension must have contact with water. Attach the probes to a clean, dry surface using an adhesive pad. Then, adjust the height of the main unit and secure it with an adhesive pad on a clean, dry surface.

If the water sensor is not pairing:

1. Your water sensor is not in pairing mode if the light has a single blink every few seconds.
2. To put it in pairing mode, take out the battery and press and hold the button on the underside of the water sensor.
3. While holding the button, put the battery in and count to 3.
4. Let go of the button. The sensor is in pairing mode if it blinks in rapid succession.

I don’t know if my water sensor successfully paired to the hub:

1. In the Latch Manager app, check that the water sensor is showing up in the building devices list.
2. If it has successfully paired at least once, the connectivity status will be “Connected.”
3. You can test leak detection by placing a finger on both prongs on the underside of the water sensor. The device will beep and any users added to the property, including property managers with device management permissions and phone numbers saved in Latch Manager, will receive an SMS.

Water Sensor Installation Guide

Water Sensor Spec Sheet

Getting Started

To add a Latch Leak Detector to LatchOS, the unit the leak detector will be added to must already be created in Mission Control, and have a Latch Hub installed, since the Latch Hub will provide the network for the leak detector to join. The Latch Hub must be powered and online during this process.

You must also ensure that the leak detector is not already registered in the Latch Manager app. If an entry for the device already exists in the Smart Devices tab of the Latch Manager app, select the device and deactivate it before attempting to pair again.

Adding a Leak Detector to the Latch Hub's Network

Each Latch Leak Detector has a QR code on the packaging, and on the bottom of the product. This QR code contains the pairing information LatchOS needs to add the leak detector to the Latch Hub's network. From the Add Device screen in the Latch Manager app, scan this QR code and select the property, unit and room that the leak detector is installed in. Name the leak detector something that would allow a resident or property manager to distinguish between this leak detector, and others that may be installed in the unit.

Before tapping the Pair button on the following screen, ensure that the included battery has been inserted correctly. The battery compartment can be found by removing the plastic top to the leak detector, identified with the water icon. Once the battery is inserted, the LED next to it should start blinking. If the battery has been inserted for more than one minute, you will need to press the pairing button next to the battery compartment. This should also illuminate the LED.

Once the device is in pairing mode, you can select the pair button in the Latch Manager app. This will link the Latch Hub and Latch Leak Detector. If the pairing is unsuccessful, the process can be restarted by removing the battery and adding it back, or by pressing the pairing button again. Be sure that the LED has stopped blinking, and is blinking again before attempting to pair from the Latch Manager app.  

If a Nest thermostat has a status of 'Disconnected' or 'Tap to Connect,' it has disconnected from the internet and must be reconnected. You will not be able to control the thermostat using the Latch App and the information available for display will be out of date or unavailable.

We recommend attempting to reconnect the thermostat to WiFi. If reconnecting the device to the network fails or it continues to fall offline, troubleshooting of the WiFi network is required. 

To reconnect your Nest thermostat to WiFi:

1. Open the Latch App.
2. Find the residence Door and tap 'View Smart Devices.'
3. Find and tap on the thermostat in the list of devices.
4. Tap on the blue 'Tap Here to Connect' link.
5. Follow the on-screen instructions to reconnect the Nest thermostat to WiFi. Note: You will need to locate the thermostat where it is installed on the wall. If you have more than one thermostat, please ensure you have located the correct device.

To reconnect your Google Nest E or Nest Learning Thermostat to WiFi:

1. Bring up the 'Quick View' menu.
2. Go to 'Settings,' then 'Network.'
3. Choose your Wi-Fi network name and enter your password if prompted.
4. If you continue to experience trouble with reconnecting your Nest thermostat to WiFi, please contact Latch Support for further assistance.

If these steps are unsuccessful and assistance is needed, please reach out to our Customer Support team at Support@latch.com. 

This guide assumes the Jasco light switch is already installed and functioning manually. This can be verified by manually pressing the on and off buttons, and verifying that the light behaves as expected. If this is not the case, check Jasco's support page, or contact an electrical professional for assistance.

Getting Started

To add a Jasco light switch to LatchOS, the unit the switch will be added to must already be created in Mission Control, and have a Latch Hub installed, since the Latch Hub will provide the network for the light switch to join. The Latch Hub must be powered and online during this process. You must also ensure that the light switch is not already registered in the Latch Manager app. If an entry for the device already exists in the Smart Devices tab of the Latch Manager app, select the device and deactivate it before attempting to pair again. 

Adding a Light Switch to the Latch Hub's Network

Each Jasco Light Switch has a QR code on the packaging, and on the bottom right corner of the front of the product. This QR code contains the pairing information LatchOS needs to add the light switch to the Latch Hub's network. From the Add Device screen in the Latch Manager app, scan this QR code and select the property, unit and room that the light switch is installed in. Name the light switch something that would allow a resident to distinguish between this light switch, and others that may be installed in the unit.

Before tapping the Pair button on the following screen, press the top button on the light switch 10 times. This will put the light switch into pairing mode. You will know the light switch is successful in this state if the light it is controlling turns off, and the LED begins to blink.

If pairing is unsuccessful, tapping the top button on the light switch 10 times can restart the process. If you are using the QR code on the packaging, be sure to check that you are scanning the correct QR code. And remember, there will be a copy on the front of the light switch if the packaging QR code is not working as expected.

This guide assumes the Nest device is already installed and functioning manually. This can be checked by using the Nest device UI to control the HVAC system, and verifying that equipment turns on and off as expected. If this is not the case, check the Google Nest installation instructions, or contact an HVAC professional for assistance.

Getting Started

To link a Google Nest Thermostat to LatchOS, you will need an Android phone with an active internet connection, and a Gmail address. If you do not have a Gmail address, you can create one for free, or follow Google's instructions to link external email addresses to Gmail.

Downloading the Provisioning app

The Google Device Provisioning app is not publicly available, so your Gmail address will need to be added to an allow-list. Contact support@latch.com for assistance with this. This Gmail address must be the same address that is used to log into the Latch Manager app. Latch Support will ensure that your account has the correct permissions when adding it to the allow-list.

Once this has been completed, the Google Device Provisioning app should be visible in the Google Play Store on your Android device.

Download the app and log in using your Gmail credentials. You should see a list of properties, including the property you will be installing Nest devices in.

Setting Up Units

Smart devices in LatchOS need to be added to Units. Prior to arriving onsite, it is recommended that you or the property manager create units for the spaces the thermostats will be added to. These units will show up in the Google Device Provisioning app.

Linking a Nest Thermostat

When adding a new device, you will be prompted to allow the Google Device Provisioning app permission to use Location and the Camera. These features allow for faster installs by reducing manual data entry.

For devices in a retrofit, ensure that the thermostat has been removed from any previous account, and reset to factory settings before attempting to link the device to LatchOS. 

The Google Device Provisioning app will ask you to scan a QR code. This can be found on the back of the Nest thermostat. The Google Device Provisioning app will use the information in the QR code to connect to the Nest thermostat. Both the Google Device Provisioning app and the Nest thermostat will have prompts to continue setup. The Google Device Provisioning app will provide the option to add a WiFi network to the Nest thermostat. This should be the network that the device will be on during normal operation, whether it be a building wide network, or one created by a Latch Hub in the same unit. Latch Hub WiFi credentials can be found in the Latch Manager app. If you are adding multiple thermostats to the same space, ensure that the Google Device Provisioning app and any existing thermostats in a space are on the same network when adding additional thermostats.

Once complete, you should see a screen similar to the one below.

Common Errors

• If you receive an error in the Google Device Provisioning app that says that the Nest device cannot be found and recommending that you move closer, the Nest device may not be available for a connection. To fix this issue, first try resetting network settings from the Nest device UI, and attempt to connect again. If this does not work, factory reset the Nest device from the Nest device UI, and configure it without a network. This should allow the device to connect to the Google Device Provisioning app.
• If you receive an error indicating that the Google Device Provisioning app cannot connect to an assisting device, ensure that any thermostats already added to a space, and the Google Device Provisioning app are on the same WiFi network.

This guide assumes the Honeywell device is already installed and functioning manually. This can be checked by using the Honeywell device UI to control the HVAC system, and verifying that equipment turns on and off as expected. If this is not the case, check the Honeywell installation instructions, or contact an HVAC professional for assistance.

For devices in a retrofit, ensure that the thermostat has been removed from any previous account, and reset to factory settings before attempting to link the device to LatchOS.

Getting Started

To link a Honeywell thermostat with LatchOS, you will need Latch Manager app, and a LatchOS account with management permissions. If you do not have an account or need help with access, contact support@latch.com.

Linking a Thermostat

From the New Device screen in Latch Manager app, find the option to Enter Code Manually at the bottom of the screen.

The unique identifier for Honeywell thermostats is the MAC ID, found on the label on the back side of the thermostat. Be sure that the wiring plate is not covering it.

Enter this value into the Latch Manager app, and select the property and unit that the device is installed in. Connect the thermostat back to the wall mount, to ensure it is powered and available.

To connect the thermostat to a WiFi network, follow the instructions specific to the device you are installing from Honeywell's support page.

Below is a list of supported third-party Smart Home devices.

Thermostats

All thermostats supported by LatchOS use WiFi for connectivity. Some Honeywell devices are similar, but support other networking technologies. Be sure to check the part numbers closely.

• Honeywell
  • T5   - RCHT8610WF2006/W
  • T6   - TH6220WF2006/U
  • T10 - THX321WF2003W/U
• Nest
  • Learning Thermostat - T3008US
  • E - T4001ES
• ecobee
  • 3 lite - EB-STATE3LTP-02

Lighting

• Switches
  • Paddle - JA-43109
  • Toggle - JA-43084
• Dimmers
  • Paddle - JA-43113
  • Toggle - JA-43090
• 3+ Way Circuit Add On Switches and Dimmers
  • Paddle - JA-46560
  • Toggle - JA-46561

Prior to installing Smart Home devices, you'll want to ensure the steps described in this article are complete.