• PNI SafeHouse HS402 Wi-Fi presence sensor with millimeter radar waves
• range 10 m
• detects movement and static presence
• measures distance and brightness
• compatible with the Tuya app
• 5V USB-C power supply

Same summary

The HS402 motion detector is especially suitable for those looking for a quick and easy solution for detecting movement or light in a room. It works independently without the need for an additional control panel and allows connection via WiFi, which makes it easy to install in existing homes or apartments. It works best for basic automation or notification, for example for lighting a hallway or as part of a basic security system. However, for more complex smart systems or where central control of multiple devices is desired, such devices may not be the best choice.

Recommendation source: Enaa guides and team experiences.

User view

The HS402 motion detector is often used by those who want to make their living spaces safer and more practical, for example for automatic lighting or simple burglary notification. Users especially appreciate that no additional equipment or central unit is required, so it can be easily installed even in rented apartments or weekend houses where you want a quick overview of what is happening remotely via smartphone.

The reliability of the PNI brand gives a sense of trust, as it is known for its affordable and user-friendly smart home solutions.

Why buy at Enaa

At Enaa you have access to expertly prepared information, making it easier to choose the right sensor for your home. You can be sure that only proven products are available, supported by user experience and our own recommendations from the field of “Home, Garden and Family”.

Answers to frequently asked questions

Can I use the HS402 detector without a smart control panel?

Yes, the HS402 motion detector works completely independently and does not require an additional control panel for its operation.

What is the most common way to use this detector in the home?

It is most often used to automatically turn lights on or off and provide basic notification of movement in hallways, entrances or garages.

Is the detector suitable for installation outdoors?

The HS402 detector is typically intended for indoor use; outdoor use is not recommended unless the manufacturer explicitly specifies appropriate protection.

What do I gain by choosing a WiFi detector compared to other systems?

The WiFi connection allows for easy integration into an existing network and control via an app, eliminating the need for a special control panel or additional equipment.

Is the installation also suitable for rental apartments?

Yes, the installation of the HS402 does not require any intervention in the existing infrastructure, which is why it is often chosen by tenants or for temporary installations.

Description updated: April 2026