> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ones1ght.com/llms.txt
> Use this file to discover all available pages before exploring further.
# 1. Before You Install
> Site survey, deciding anchor placement, gathering supplies, preparing a floor plan — everything to finish before you carry hardware to the site.
**Where you work —** 🏬 On-site survey + 📋 Document prep (no GeoSpace screen work yet)
What eats up the most time on install day is not the hardware, it is **"there is no outlet · there is no floor plan · nobody decided where these go"**.
Finish the preparation on this page before you go on site, and the install is done in half a day.
## 1. Site survey
Measure and record the following with a tape measure or laser distance meter.
| Measurement | What it is for |
| ---------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------- |
| **Width · depth** of the detection area (m) | Basis for setting the floor plan scale and entering anchor coordinates |
| Ceiling height, or the height you can mount at | Determines the anchor mounting height — recommended **2.4 – 3 m** (minimum 2 m) |
| One span whose real length you know exactly (wall to wall, etc.) | The two-point reference for [setting the floor plan scale](/en/geospace/spaces#3-configure-the-plan-scale) |
If your tape measure is too short, mark the floor with tape and measure in sections. **An error of about ± 10 cm is fine** —
you do not need centimeter precision; recording to the nearest 10 cm is enough.
**Checkpoint —** You are done once you have the numbers written down: "○ m wide × ○ m deep, mounting height ○ m".
## 2. Decide anchor placement
Place **at least four** anchors at the **four corners of a rectangle** that surrounds the detection area.
* Clustering them on one side, or placing them close to a straight line, greatly increases position error.
* **Stay away from metal (steel, iron, aluminum)** — the rule is simply **do not mount directly onto** metal shelving, steel columns or refrigeration units. Use an arm's length (about 50 cm) between the anchor and the metal as your rule of thumb.
* For each mounting point, check **where the nearest power outlet is**. Whether the power cable (3 m recommended) reaches decides whether you can actually mount there.
**Checkpoint —** You are done once the floor plan (or a sketch) shows the four anchor spots plus the power route for each one.
## 3. What to bring
**All setups**
| Item | Quantity | Notes |
| ------------------------------------ | ---------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| AN-500 anchors | **4 or more** | Based on a rectangular layout surrounding the detection area |
| Power adapters and cables | One per anchor | USB-C · **5V/3A** (an out-of-spec adapter causes failures) · **3 m or longer** recommended — measure the cable in the box now (it must cover the mounting height plus the distance to the outlet) |
| Power strips | One per anchor position (wherever there is no outlet right next to it) | The four anchors sit in four separate corners, so a single strip usually does not reach |
| Tape measure or laser distance meter | 1 | For the site survey and coordinate measurements |
| Line tape | 1 | For marking zones on the floor (a high-visibility color) |
| Paper tape | 1 | For securing cables on the floor (prevents tripping) |
| Label paper or masking tape · pen | 1 | For writing the last 4 digits of the MAC on the front of each anchor |
**Additional items by mounting method** — choose one based on site conditions.
| Method | Additional items | Notes |
| -------------------------------------------------- | ----------------------------------------- | -------------------------------------------------------------------------------------------------------------- |
| **Wall mounting** (default for permanent installs) | Double-sided tape, step ladder (or chair) | Easier to reach the required height — for leased spaces, **confirm in advance whether the wall may be marked** |
| **Tripod stands** (temporary · demo) | **4** tripods | No damage to walls — suitable for short-term installs |
## 4. Prepare the floor plan
You need a **floor plan image (PNG · JPG)** to upload to GeoSpace.
* It must match the real layout of the space.
* A span whose measured length you know (a wall, a column, etc.) must be identifiable on the plan, otherwise you cannot set the scale.
**You do not need a real floor plan.** If the store is a simple rectangle, **drawing one rectangle in PowerPoint or Excel and
saving it as PNG** is enough — four visible walls are all you need to set the scale. Just keep two things in mind while you draw.
1. **Draw it at the measured width:depth ratio** (for example, 12:7 for a 12 m × 7 m store). If the ratio is off, one wall ends up misaligned with the plan.
2. **Decide which direction counts as "up" in the store (true north), and draw the plan with that direction at the top.** Mark the entrance and
write the measured width and depth on the drawing as text. The "bottom-left" corner of this plan becomes the coordinate origin (0, 0) in step 4.
3. **Fill the image with the room** (no outer margin) and entering coordinates gets simpler — you will not have to add an offset in step 5.
(If you know a design tool such as Figma, feel free to draw it there.)
## Readiness checklist
| # | Item |
| - | ---------------------------------------------------------------------------------------------------------------------------------------- |
| 1 | Width and depth measurements recorded |
| 2 | Four anchor positions + power routes decided |
| 3 | Equipment and supplies in hand (table above) |
| 4 | Floor plan image file in hand |
| 5 | GeoSpace and OneS1ght console account invitations confirmed ([Roadmap · Before you start](/en/roadmap#what-to-prepare-before-you-start)) |
## Next steps
Sign in to GeoSpace and confirm your organization and license.