Hikvision DS-PS1-E-WE(O-STD)/Red

• Wireless external sounder
• 868 MHz two-way wireless communication
• 3 years battery life span (triggered every two weeks and alerting 90 s for each triggering)
• AES-128 encryption
• Front and rear panel tamper-proof
• 3 kinds of alarm sounds: fire alarm, panic alarm, and intrusion alarm
• Buzzer Decibel: 110 dB
• Fully remote configurable through App
• Multiple enrollment methods and easy installation design
• Frequency hopping against jamming for reliable transmission
• IP65 protective level