DS-PD451SMK-WE Wireless Smoke and Heat Detector with Photoelectric Sensor and 5-Year Battery - Hikvision
DS-PD451SMK-WE - The smoke and heat detector offers advanced protection thanks to the high-precision photoelectric sensor and the dual detection system with alarm for constant temperature over 64°C and rapid changes greater than 10°C/min . Ideal for indoor environments, it guarantees stable wireless communication up to 1000 meters with AES-128 encryption for maximum security. The replaceable battery ensures up to 5 years of autonomy , while the sensor has a lifespan of up to 10 years , making it a reliable and professional solution for modern security systems. Hikvision
DS-PD451SMK-WE | HEAT AND SMOKE DETECTOR

The Hikvision DS-PD451SMK-WE wireless detector combines advanced smoke and heat detection technology to ensure maximum security in indoor environments. Equipped with a high-precision photoelectric sensor , it quickly detects abnormal changes in temperature and the presence of smoke, triggering alarms above 64°C or with an increase greater than 10°C per minute . Thanks to wireless communication up to 1000 meters and AES-128 encryption, it ensures reliable and secure connections. The replaceable battery offers up to 5 years of autonomy , while the sensor guarantees an operational life of up to 10 years , ideal for professional and residential security systems.
Main specifications:
- High precision photoelectric sensor
- Constant temperature alarm above 64°C
- Detection of rapid temperature increase >10°C/min
- Wireless range up to 1000 m
- AES-128 wireless encryption
- Battery life up to 5 years
- Sensor life up to 10 years
- Ceiling installation for indoor environments
Further details
Technical data sheet
| DS-PD451SMK-WE | |
| Detection Performance | |
| Detection Method | Chamber With Photoelectric Sensor |
| Indication | |
| Alarm duration | Support |
| Hardware features | |
| Sensor life | 10 years |
| Electrical Characteristics | |
| Typical Voltage | 3v |
| Battery type | Replaceable CR123A x 2 |
| Power Supply | Battery Powered |
| Battery life | Up to 5 years |
| Wireless transmission | |
| RF frequency | 868MHz |
| Transmission Range(Free Space) | Up to 1,000 m Between the detector and a hub (or radio signal range extender) in an open space |
| Wireless security | AES-128 Encryption |
| Enrolling method | Power up, Remote ID, QR Code |
| General | |
| Installation method | Ceiling mounted |
| Dimensions (WxHxD) | 125mm × 39mm (4.9" × 1.5") |
| Application scenario | indoor |
| Color | White |
| Weight | 251 g (0.55 lb) (with battery) |
| Operation temperature | -10 °C to 55 °C (14 °F to 131 °F) |
| Operation humidity | ≤95% relative humidity (RH) |


