The Hikvision DS-PDSMK-4 is a high-reliability wired smoke sensor engineered for comprehensive indoor fire protection. It employs a photoelectric chamber that is highly sensitive to slow-smoldering fires, providing an early warning before flames break out. The detector is designed with a 4-wire configuration (power and signal relay), allowing for seamless integration into security control panels. Key features include an auto-reset function after an alarm is cleared and a sophisticated algorithm to reduce false alarms caused by dust or steam. The device is housed in an aesthetically pleasing, flame-retardant casing and includes a bright LED indicator that flashes during normal operation and stays solid during an alarm event. For added security, it features a tamper-resistant design and is easy to maintain with a removable smoke chamber for cleaning.
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