Installation and Wi-Fi setup

ES-Net and ES-Pro are set up the same way. Mount the seismometer on a stable floor first, then set up Wi-Fi over Bluetooth with the ExpTech Home app on your phone. You do not need a computer.

Prepare

• The seismometer, plus the included power plug and a 1-meter USB Type-C cable.
• 2.4 GHz home Wi-Fi. The seismometer does not support 5 GHz. You also cannot use a phone hotspot or public free Wi-Fi.
• A power outlet. There must be an outlet near where you install it. If you use an extension cord, secure the cord too.
• A phone. Install ExpTech Home, and allow the app to use Bluetooth and location. If Bluetooth and location are off, the app cannot find the seismometer.

ExpTech Home is the setup app for ExpTech seismometers. Use it to set up Wi-Fi and update firmware.

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Choose a location

• Indoors, on a stable surface (the floor). The protection rating is IP10. It is not waterproof.
• Avoid places where it can be knocked, or where things often shake for reasons other than an earthquake. A bump or other shaking is treated as ground motion and causes a false report.
• It can receive a 2.4 GHz Wi-Fi signal, and an outlet is nearby.

Mount the seismometer

1. Point it due north

   Use the compass on your phone to find due north, and point the arrow on the seismometer due north. Direction affects the bearing of the two horizontal axes. Line it up as closely as you can.

2. Stick it down

   Use the adhesive on the base to stick the seismometer firmly to the floor.

3. Connect power

   Use the included cable and power plug to connect it to the outlet. Confirm that the power indicator turns on.

Connect to Wi-Fi with ExpTech Home

1. Enter pairing mode

   Hold the reset button (the one on the right when the USB Type-C connector faces you) for about 5 seconds, until the LED blinks quickly. The ES-Pro screen shows “BLE Pairing” and the station name.

   If the LED is already blinking quickly, you can skip this step.

   Held for less than 5 seconds

   If you let go too early, the seismometer enters BLE OTA mode, which is used to update firmware (the LED stays on). Unplug the power, plug it back in, and hold the button again.

2. Start setup

   Open ExpTech Home and tap 「快速設定」, then 「開始設定」. Keep the phone near the seismometer.

3. Select the station

   Select your seismometer from the list. The name format is “model_device ID”, for example ES-Net_1A2B3C4.

4. Select the Wi-Fi network and enter the password

   The app lists Wi-Fi networks near the seismometer. Select yours and enter the password. To add a hidden network, use 「手動輸入」.

5. Confirm networked mode

   「啟用併網模式」 is on by default. The seismometer sends data back to ExpTech. Leave it on to join TREM-net (the TREM seismic network). For how the modes differ, see Connection modes.

6. Submit and check the LED

   After you submit, the seismometer starts connecting to Wi-Fi:

   • The LED blinks slowly: it is connecting.
   • The LED turns off: it is connected and has started normal operation.
   • The LED blinks twice and turns off, repeating: sensor error. See Troubleshooting.

No Wi-Fi available

On the Wi-Fi list page, choose 「單機模式」. The seismometer will not connect to Wi-Fi, and it outputs data over USB only. Standalone mode does not sync the clock, so timestamps may be inaccurate.

Join TREM-net

After the connection is done, tell a station engineer on Discord. ExpTech watches data quality for 3–5 days. After confirming there is no problem, the station appears on the map and officially joins TREM-net.

Change the Wi-Fi network or move

1. Hold the reset button for about 5 seconds, until the LED blinks quickly. This clears the Wi-Fi settings stored on the seismometer.

2. Set it up again by following “Connect to Wi-Fi with ExpTech Home” above.

3. When you move to a new place, align the direction and mount it again. The station location is used for positioning and calibration. Tell ExpTech to update the installation address.