DHI-ARK30C

"• Buzzer Decibel≥105±3dB\1M • Three-level volume control, remote configuration, cloud upgrade and check status (via mobile App) • Built-in battery for up to 2.5 years, and supports low battery alarm • Temperature measurement"

"Two-way RF communication. Provides multiple LED colors to indicate different statuses. Cloud update and automatic recovery from update failure. Offers accidental press prevention. IP54 rated."

Including one each of 4G model Hub, PIR, Magnetic Contact, and Keyfob