# Contour

Source: https://checkmatedynamics.com/contour.html

[Products](https://checkmatedynamics.com/products.html) / B — Sense / B1–B2 | Direct time-of-flight depth

Metric depth from a sensor the size of a thumb, over one USB-C cable and on the same clock as your cameras. It measures distance directly, so plain, textureless surfaces read as well as patterned ones.

**B1 · Contour** | USB-C depth sensor | **Register interest**

**B2 · Contour Wrist** | Gripper mount, part of the Sync Kit | **Stations**

**Contour OEM** | Module for your own housing | **Talk to us**

[Register interest](mailto:contact@checkmatedynamics.com?subject=Register%20interest%3A%20Contour) | [OEM enquiry](mailto:contact@checkmatedynamics.com?subject=Parts%20and%20OEM%20enquiry%3A%20Contour)

Sensor figures from ST’s datasheet. Size and mass come from our design and will be replaced by measurements.

Resolution | **54 × 42 zones**

Field of view | **55° × 42°**

Frame rate | **30 Hz**

Sensor range | **0.05–8.8 m**

Diagram, not a product image

**Fig. 01** Depth as contour lines, with the sensor’s figures Diagram

Key figures

- **Sensor**: VL53L9CX
- **Wavelength**: 940 nm
- **Resolution**: 54 × 42
- **Frame rate**: 30 Hz
- **Mass**: 37 g Est.
- **Interface**: USB-C

45 mm

40 mm

Front view, to scale, est. | Diagram

**01** Overview

## Geometry at contact range.

01

### Metric

Direct time-of-flight returns absolute distance whatever the surface color or texture.

02

### Small

About 45 × 40 × 12 mm and under 40 g (target): light enough for a small follower arm’s gripper.

03

### On the clock

A sync input lines depth frames up with your RGB cameras and the rest of the station.

04

### In your pipeline

Appears as a camera in LeRobot, with depth and confidence for every frame.

**02** Contour Wrist

## Depth beside the gripper, next to the camera you already run.

Contour Wrist mounts on the follower’s wrist with adapters for common arms and adds contact-range depth on the station clock. It ships in the [Sync Kit](https://checkmatedynamics.com/sync-kit.html).

- Station profile tuned for 5 cm to 1.5 m
- Per‑unit calibration file in the box
- Mounted on the follower, never the leader

Where it fits

| Lighting | Indoor, LED-lit stations |
|---|---|
| Frame rate | 30 Hz, depth + confidence |
| Resolution | 54 × 42 zones: contact geometry, not an RGB replacement |
| Not for | Direct sunlight, halogen lamps, scenes full of glass |

**03** Specification

| Sensor | ST VL53L9CX direct time-of-flight, 940 nm, Class 1 laser |
|---|---|
| Resolution | 54 × 42 zones; binned modes down to 4 × 4 |
| Field of view | 55° × 42° |
| Range | 0.05–8.8 m sensor range; 1.5 m clamp in the station profile |
| Frame rate | 30 Hz over USB, depth and confidence |
| Size, mass | About 45 × 40 × 12 mm, about 37 g Estimate |
| Power | USB-C; under 1 W in the station profile Target |
| Interfaces | USB-C · sync input |
| Software | LeRobot camera plugin · Python |

Sensor figures from ST’s datasheet. Size, mass and power come from our design and will be replaced by measurements.

**04** OEM

## The same module, in your product.

For headsets, wrist rigs and handheld grippers: the Contour module with the same calibration and sync, supplied with per‑unit test records and integration support.

[Talk to engineering](mailto:contact@checkmatedynamics.com?subject=Parts%20and%20OEM%20enquiry%3A%20Engineering) | [Components](https://checkmatedynamics.com/components.html)

Related: [Sync Kit](https://checkmatedynamics.com/sync-kit.html) · [Stations](https://checkmatedynamics.com/stations.html) · [Makers](https://checkmatedynamics.com/makers.html) · [Components](https://checkmatedynamics.com/components.html)

## On the waitlist, no ship date yet.

[Register interest](mailto:contact@checkmatedynamics.com?subject=Register%20interest%3A%20Contour)