The first time you power on your WTH, it walks you through a short setup, then it is ready to monitor temperatures. This guide covers what happens at first power-on, how to connect your sensors, how to pair the phone app, and how to add a wireless display.
Sensors and displays connect in different ways. Your temperature sensors are wired: you plug them in and their channels appear on the dashboard, with nothing to pair. The phone app connects over Bluetooth, and LF Audio wireless displays connect over the hub's own wireless link. Each of those is covered below.
First Power-On
When the hub powers on for the first time, it shows a "WTH / Wireless Temperature Hub" splash screen while it starts up.
The hub then runs a guided touch calibration so the screen responds accurately to your taps. Nine targets appear one at a time. Tap each target as it appears, working through all nine in order. Try to tap the center of each target, and use a fingertip rather than a wide press so the hub gets an accurate reading.
When you finish the ninth target, calibration is complete and the home dashboard, titled "TEMPERATURES", takes over.
You can re-run this calibration at any time. Open Settings (the gear on the dashboard), go to the Display tab, and tap Calibrate Touch. If the screen ever feels like it is registering taps in the wrong spot, this is the fix. See Display and Navigation for a tour of the home screen.
Connecting Your Sensors
Your temperature sensors do not need to be paired. They are wired directly to the hub, so setup is simply plugging them in.
The hub supports up to 8 sensors at once: up to 4 WTH Infrared Sensors for non-contact readings, plus up to 4 Thermocouple Temperature Probes for contact readings. Connect the infrared sensors to the infrared sensor ports and plug the probes into the probe jacks.
As soon as a sensor is connected and reading, its channel appears on the dashboard as a tile. Infrared channels are named "IR 1" through "IR 4" and probe channels "Probe 1" through "Probe 4" by default, and you can rename any of them later. The tiles re-pack themselves automatically, so you only ever see the channels that are actually connected.
If a channel shows "--" instead of a temperature, that channel is not reading:
- The sensor for that channel is not plugged in, or its cable is loose.
- An infrared sensor is connected but is not aimed at a target. Point it at the hot surface you want to watch, such as a subwoofer motor or voice-coil area.
- A probe is disconnected. Reseat its plug in the probe jack.
A channel only appears while its sensor is connected and reading. If a sensor is unplugged or loses its reading, its tile shows "--" and then drops off the dashboard. This is normal. Reconnect the sensor and the tile comes back.
For a full walkthrough of the infrared sensors and probes, see Sensors and Probes.
Pairing the Phone App
Pairing the LF Audio AuralSync app lets you view live temperatures on your phone, rename the hub, and provide the home WiFi the hub uses for firmware updates. The app connects over Bluetooth.
- Install the LF Audio AuralSync app on your phone from your app store. For a full walkthrough, see Getting Started with the app.
- Turn on Bluetooth on your phone and keep the phone near the hub.
- In the app, add the new device. The hub appears in the list as LF_WTH. Select it.
- When prompted, enter the 6-digit PIN. The hub shows and manages this PIN, so read it from the hub screen and type it into the app to confirm the connection.
- Once connected, you can rename the hub and view its live temperatures from the app. To enable firmware updates, provide your home WiFi network and password when the app asks. The hub uses that WiFi to download updates over the internet.
Providing your home WiFi is what lets the hub check for and install firmware updates. If you skip it now, you can add it later from the app whenever you want to update.
Pairing a Wireless Display
The hub can send its temperature readings to an LF Audio wireless display so you can see them somewhere other than the hub itself. This works with the WDD, the WDD-LITE, and the WVC Knob. These pair over the hub's own wireless link, separate from Bluetooth and separate from your sensors.
- Put the hub into pairing mode. Either triple-press the front button, or open Settings, go to the Devices tab, and tap Pair New Display.
- The hub shows "Pairing Mode" and then "Searching for display..." while it looks for a display. The pairing light flashes while it is searching.
- Start pairing on the display itself, following that display's own pairing steps, so the two units find each other.
- When they link up, the hub shows "Paired!" and "Connection successful". The display now shows the hub's temperature data.
The Devices tab lists each paired display with its type, firmware, connection status, and signal strength, so you can confirm everything is connected.
To remove a display, open the Devices tab and tap Forget next to it. To clear every paired display at once, long-press the front button. The hub clears all pairings and restarts.
Wireless-display pairing is a separate link from your phone-app Bluetooth connection and from your wired sensors. Pairing or forgetting a display does not affect your sensors or your app connection.
For more on reading temperatures on the hub itself, see Display and Navigation.