12V 4-Wire Access Doorbell Chime, Modern Wired Doorbell Chime Box Kit | Wired 12V doorbell features a wire mechanical chime; no battery needed, great for home access control and wired door bell.

Features:1. Adopted premium abs shell material, fireproof and antiflaming, sturdy and durable, long life service. 2. 90dB build-in loudspeaker, produce clear and loud ding dong playing bell sound, not afraid of can't hear doorbell. 3. No need to replace or add battery, using access control power supply, which is eco-friendly, convenient and save money. 4. Easy to install, wall-mounted or double-sided adhesive paste. 5. External wired door bell for security access control. Specification:Material: ABS plasticColor: As Pictures ShownVoltage: 12V DCOperating Current: 20mAWorking Temperature: -10℃-45℃Relative Humidity: Working: 40%RH-90%RHInstallation: Wall-mounted or double-sided adhesiveRed: VDC + 12 VBlack: GNDGreen: BELL1Yellow: BELL2Size: approx.86*86*25mm/3.4*3.4*1inWeight: Approx.81g/2.9ozPackage list: 1 * DoorbellNote:1. Please allow 0~1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.

• SPECIFICATIONS: This doorbell chime wired operates at 12V DC voltage with a 20mA operating current, working temperatures between -10°C and 45°C, 40-90% RH relative humidity, size approx. 86mm x 86mm x 25mm
• MATERIAL & COMPATIBILITY: Made from ABS plastic, the wired doorbell chime provides compatibility featuring color-coded wires: red for VDC +12V, black for GND, green for BELL1, yellow for BELL2.
• KEY FEATURES: Incorporating a built-in 90dB loudspeaker, this wired doorbell produces clear and loud ding dong sounds for audible alerts without requiring battery replacement or additions, powered solely by access control systems.
• INSTALLATION: Setup for the door bell chimes wired involves wall-mounted installation using double-sided adhesive for easy affixation without complex tools.
• PACKAGE CONTENTS: The package includes one doorbell wired unit, with color as per pictures showing possible slight variations, and a manual measurement error allowance of 0-1 inch in dimension.