كاشف حريق هيكفيجين ⁦HF-FY300-L⁩

كاشف حريق من هيكفيجين، موديل ⁦HF-FY300-L(HF-Link)⁩. المواصفات: ⁦Dual-light sensing technology for reducing false alarm caused by vapor Support networking applications with gateways through LoRa communication Alarm indicating buzzer, sound level ≥ 85 dB @ 3 m (A-Weighted) Support multiple alarm types: low voltage alarm, tampering alarm, maze dirty alarm Constant temperature alarm (>57℃) / Differential temperature alarm (ΔT > 8℃/min) Powered by lithium battery, 3 VDC batter CR17450, 5 years Support self-test to verify whether the device is working properly Battery uninstalled indicator Support silence (1min) locally/remotely Signal strength query mode, easy to deploy and install Operation temperature:-10°Cto 55°C(14 °F to 131 °F)⁩