Physical Installation - Grillo One

Proper sensor placement is crucial for data quality. Follow this guide step-by-step to install your Grillo One sensor.

Indoor use only

The Grillo One is designed for indoor installation only. For outdoor deployments, see the Grillo Pulse with its weatherproof enclosure.

Before you begin

Tools required

• Pencil or marker
• Power drill with masonry bit (sized for included wall plugs)
• Screwdriver
• Spirit level
• Cleaning cloth

Included hardware

• Mounting screws
• Wall plugs

Step 1: Choose your location

Select a location that meets all of the following criteria:

Building level

• Ground floor or basement only — upper floors amplify building sway and reduce data quality

Surface type

The sensor must be mounted on a stiff structural element:

• Concrete floor slab (preferred)
• Steel beam or column base
• Structural concrete or masonry wall (at floor level)

Unsuitable surfaces

Do not mount on:

• Wooden floors or raised flooring
• Drywall or plasterboard
• Mid-span of walls (between structural supports)
• Carpet (unless using a solid base underneath)

Environment

✓ Required	✗ Avoid
Near power outlet	Upper floors
Near WiFi router or Ethernet port	HVAC units, generators, motors
Away from foot traffic	Hallways, doorways, stairs
Quiet location	Roads with heavy vehicle traffic
	Exterior walls

Floor mounting: water hazards

If mounting on the floor, avoid locations at risk of:

• Flooding — basements prone to water ingress
• Floor cleaning — areas regularly mopped or washed
• Spills — near sinks, pipes, or water heaters

Step 2: Prepare the surface

1. Clean the mounting surface thoroughly
2. Remove all dust, debris, and loose material
3. Ensure the surface is completely dry

Step 3: Mark and drill mounting holes

1. Place the sensor on the prepared surface
2. Use a spirit level to ensure the sensor is horizontal
3. For wall mounting: position with USB port facing down
4. Mark screw hole positions through the flanged mounting holes with a pencil
5. Remove the sensor
6. Drill holes at the marked positions using the masonry bit
7. Clear dust from the holes
8. Insert wall plugs

Step 4: Mount the sensor

1. Position the sensor over the wall plugs
2. Insert screws through the flanged mounting holes
3. Tighten screws firmly — the sensor must not move
4. Verify the sensor is level with a spirit level
5. Confirm the sensor cannot shift or wobble

Secure mounting required

A loose sensor will produce unreliable data. Ensure all screws are tight and the device cannot move when touched.

Step 5: Connect cables

Power cable

• Route along walls or baseboards
• Use cable clips to secure
• Avoid creating trip hazards
• Leave some slack for adjustment

Ethernet cable (if used)

• Route to nearest network switch or router
• Keep away from power cables to reduce interference
• Use cable clips or conduit for clean installation

Step 6: Verify installation

Before powering on, confirm:

• Sensor is indoors on ground floor or basement
• Mounted on structural element (concrete/steel)
• All screws tight — sensor cannot move
• Sensor is level
• Away from foot traffic (>3 meters)
• Away from machinery and vibration sources (>3 meters)
• Power outlet within reach
• Network access available (WiFi signal or Ethernet)

Automatic calibration

When powered on, the Grillo One automatically calibrates:

• Calibration takes a few seconds
• The sensor must remain completely stationary during this process
• The Sensor LED indicates when calibration is complete

warning

Do not move or disturb the sensor during the initial power-on sequence. Movement during calibration affects data quality.

Sensor orientation

The sensor measures ground motion in three axes. Precise compass orientation is not required, but all sensors in your network should have a consistent vertical axis.

Floor mounting (standard)

• Mount the sensor flat on the floor
• Ensure the sensor is level
• No special orientation required

Wall mounting

If mounting on a structural wall:

1. Position the sensor with the USB port facing down
2. This keeps the Y-axis consistent with floor-mounted sensors
3. Record the mounting orientation in the sensor's metadata in Grillo Cloud dashboard

Wall mounting metadata

When a sensor is wall-mounted, you must update its configuration in Grillo Cloud to indicate the mounting orientation. This ensures correct data interpretation.

Operating environment

Specification	Limit
Temperature	-20°C to +60°C
Humidity	10% to 90% non-condensing
Direct sunlight	Avoid — can cause overheating

Next steps

Once physically installed:

1. Configure network connectivity
2. Provision the sensor to Grillo Cloud