# Hardware specs

## Summary

The sensor collects secure, anonymous foot traffic counts using thermal sensing and machine learning algorithms. It attaches to the top of any single or double sized door frame, using a magnetic mounting plate installed with adhesive strips. It can be installed in 5 minutes without any technicians or drilling needed.

![](https://1413068960-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FBUBQ4lRyWurZQuyU6Ndu%2Fuploads%2FgKztCVVcUuS5QyabiLay%2FScreen%20Shot%202022-11-04%20at%2010.34.43%20AM.png?alt=media\&token=d51dc8b2-6d60-415d-905e-decee47abd04)

## Device Specifications

* **Size:** 7.70 in x 1.92 in x 1.93 in (195 mm x 49 mm x 49 mm)
* **Weight:** 0.80 lbs (363 g)
* **Power:** 1-2 years of battery life, optional 5V DC (see [powering-your-device](https://docs.getdor.com/dtm-docs/hardware/setup/powering-your-device "mention"))
* **Battery:** Replaceable high energy lithium batteries or Alkaline (see [powering-your-device](https://docs.getdor.com/dtm-docs/hardware/setup/powering-your-device "mention"))
* **Optimal Door Dimensions:** Height - Up to 12 ft (3.6 m) Width - Up to 8 ft. (2.4 m) (see [doorway-compatibility](https://docs.getdor.com/dtm-docs/hardware/installation/doorway-compatibility "mention"))
* **Wireless:** Wi-Fi 802.11b/g/n, 2.4GHz/5.0GHz, WPA2 encryption, Bluetooth low energy, LoRaWAN (see [connectivity-requirements](https://docs.getdor.com/dtm-docs/hardware/setup/connectivity-requirements "mention"))

## Sensor Diagram

<figure><img src="https://1413068960-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FBUBQ4lRyWurZQuyU6Ndu%2Fuploads%2FL3lj6q3Kscx6lfgqR3b9%2FScreen%20Shot%202022-11-04%20at%2010.42.23%20AM.png?alt=media&#x26;token=2ee03515-2325-40d4-9ed6-caaf5ed9cf6f" alt=""><figcaption></figcaption></figure>