https://vedardalarm.com/environment-security-components-c-8

Fire detector smoke sensor with or without sounder but always with strobe for alarm and connection with home security alarm panel for app remote monitoring.
The smoke detector has 2 led flash for alarm and fault indication. Smoke sensor is with N/C or N/O output to connect with home security system control center hard wire input zone for monitoring.
9 to 28 VDC Volts Non-polarized power supply from alarm control panel. Standby Current: ≤200μA
https://vedardalarm.com/smoke-detector-4wire-with-relay-output-dc-powered-p-154
Smoke detector is made by professional fire alarm fire security manufacturer with certificate of CE EN54. It is used for residential security, commercial security fire prevention.