Wireless Internal Sounder

Hikvision

868 MHz two-way wireless communication Configurable arming/disarming prompt sound and LED indicator 3 years battery life span (triggered every two weeks and alerting 90 sec 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: 90 to 110 dB Fully remote configurable through APP Multiple enrollment methods and easy installation design Frequency hopping against jamming for reliable transmission. Operation humidity10% to 90% (no condensing), Operation temperature-10 °C to 55 °C (14 °F to 131 °F), Battery life spanUp to 3 years (standby time), RF frequency868 MHz, RF modulation2GFSK, RF distance1. 6 km (open area), Dimension(WxHxD)88 mm × 88 mm × 32 mm (3. 46" ×3. 46" × 1. 26"）, Shell materialPC+ABS, ColorBlue/Red LED flash, Weight169. 5 g (6. 0 oz),