Yes, the Philips Hue motion sensor can also measure brightness. You can configure the sensor so that your lighting only switches on at a certain brightness. This is possible via the Philips Hue app, where you can adjust the settings for the motion sensor.

If you are looking for alternatives that can also be integrated into the Hue ecosystem, there are a few options:

- Philips Hue Outdoor Sensor: this sensor is designed for outdoor use and can also measure motion and brightness.
- Aqara Motion Sensor: This sensor is compatible with the Hue system and offers similar functions.

Both options can help to automate the lighting according to your needs.