ESP Fort Smart Door / Window Contact Sensor ESP ECSPCT Battery powered smart door/window contact [battery supplied] Low power indication Tamper protection Sensor dimensions 55.7 x 30.3 x 16mm Magnet dimensions 25 x 10 x 9mm Requires smart alarm hub [ECSPHB] The ESP ECSPCT Fort Smart Door/Window Contact Sensor offers a top-tier solution for home security. Designed to detect when a door or window is opened, it provides instant alerts to potential intrusions. Easy to install, the sensor pairs seamlessly with your ESP app-enabled device, delivering notifications to your smartphone or tablet. Compact and unobtrusive, it fits easily on any door or window. Additionally, it features a low battery alert to ensure continuous operation, giving you peace of mind and reliable protection. Brand ESP Batteries Included Yes Battery Size CR2477 Battery Type Lithium Colour White Depth 9mm Dimensions (H)55.7 mm x (W)30.3 mm x (D)9 mm Frequency 433MHz Guarantee 1 Year Height 55.7mm Number of Batteries 1 Operating Temperature Range -10 - 55°C Packaging Types Each Product Range FORT Smart Security Products Unspsc V18 46171619 Weight 0.082kg Width 30.3mm Wireless Range 80m