Part Number:Health Gear3da4xeswkz268 Product Dimensions:8 x 4 x 1.5 cm; 40.75 Grams Finish:Finish Material:Material Power Source:PowerSource Voltage:1 Volts Installation method:InstallationMethod Item Package Quantity:1 Included Components:Inc Batteries Required?:No Item Weight:40.8 g This set of magnetic sensing switches monitors the opening and closing of doors and windows used to protect mostly doors and windows. It is ideal for installation on home, garage, warehouse, business and store doors, etc. With 433MHz transmission frequency, wireless connection, our product is convenient to use. But please note that this magnetic sensor cannot be used alone. It should work with the main unit of the alarm system for the alarm. If you have any questions about this product, please contact us and we will be happy to serve you. Specifications: Condition: 100% brand new Material: ABS plastic Color: as the picture shown Operating voltage: 1.5V Built-in battery: 1 * AAA LR03 AM4 1.5V 800mAh dry battery Battery life: about 8 months Static current: 10uA Operating current: 15mA Transmission frequency: 433 MHz Transmission distance: 100m (distance of open area) Door magnet sensing distance: 25 ~ 35mm / 0..98 ~ 1.37in Wireless encoding format: Compatible for eV1527 Operating temperature: -10 ~ 40 Humidity: 90% RH Size: as the picture shown Package included: 1 * Wireless Door Magnetic Detection Contact Set Note: Cannot be used alone. Should work with the main unit of the alarm system for the alarm. [Feature]: This is a set of magnetic detection switches used to protect mostly doors and windows. The protective device monitors the opening and closing of doors and windows [Related parameters]: 433MHz transmission frequency, wireless connection, this magnetic contactor is convenient to use [High Quality]: High quality magnetic sensor contacts with strong magnetic and sensitive response and long durability [Easy to Install]: The magnetic detector is very easy to install without hassle, you can install it in a few minutes. It is a great replacement for old contacts [Note]: This magnetic sensor cannot be used alone. Should work with main unit of alarm system for alarm See more product details [Feature]: This is a set of magnetic detection switches used to protect mostly doors and windows. The protective device monitors the opening and closing of doors and windows [Related parameters]: 433MHz transmission frequency, wireless connection, this magnetic contactor is convenient to use [High Quality]: High quality magnetic sensor contacts with strong magnetic and sensitive response and long durability [Easy to Install]: The magnetic detector is very easy to install without hassle, you can install it in a few minutes. It is a great replacement for old contacts [Note]: This magnetic sensor cannot be used alone. Should work with main unit of alarm system for alarm