Enhance your home or office security with this Wireless Door and Window Sensor, designed for easy installation and reliable intrusion detection. Operating on a 433MHz frequency with a wireless transmission range of up to 100 meters in open spaces, this sensor effectively monitors door and window status and instantly sends alarm notifications to the connected gateway host or app, providing peace of mind wherever you are. Key Features: · **Wireless 433MHz Transmission:** Offers up to 100 meters of wireless signal range in open areas, ensuring flexible placement and reliable communication with your security system. · **Instant Alarm Notification:** When the sensor detects door or window opening, it triggers an 85dB alarm sound and sends immediate alerts to the alarm host or app for prompt response. · **Water Intrusion Detection:** Equipped with sensitive detection that activates the alarm when the sensor’s contact feet are immersed in water, ideal for preventing water damage in kitchens, bathrooms, garages, and other vulnerable areas. · **Low Power Consumption:** Built with a low-consumption chip and battery-powered design (includes 1*12V 23A battery), enabling long-lasting operation without frequent battery changes. · **Compact and Discreet Design:** The sensor’s tiny size (Main body: 67x26x15mm; Deputy body: 53x12x14mm) and minimal profile allow it to blend seamlessly with your home or office decor. · **Easy Installation:** Comes with double-sided adhesive tape for quick and hassle-free setup on doors, windows, cabinets, or other entry points without drilling or wiring. · **Wide Application:** Perfect security solution for homes, apartments, dormitories, offices, hotel rooms, garages, warehouses, laboratories, shops, and more. · **Reliable Performance:** Supports EV1527 protocol with a trigger alarm distance within 20mm, operating efficiently in environments ranging from -10℃ to 50℃ (14℉ to 122℉). Specifications: · Wireless Frequency: 433.92MHz · Protocol: EV1527 · Transmit Distance: Up to 100m (open space) · Quiescent Current: ≤3μA · Emission Current: ≤15mA · Trigger Alarm Distance: ≤20mm · Operating Temperature: -10℃ to 50℃ (14℉ to 122℉) · Main Body Size: 67 x 26 x 15 mm · Deputy Body Size: 53 x 12 x 14 mm · Item Weight: 32g (1.1oz) Package Includes: · 1 x Wireless Door / Window Sensor · 1 x Set of Mounting Stickers This Wireless Door and Window Sensor delivers efficient, dependable, and user-friendly security monitoring, ensuring that your premises remain protected from unauthorized entry and potential water damage. Its long transmission range and low power usage make it an excellent addition to any wireless home automation or security system.