About This

• Battery‑Powered, No Outlet Needed: Put your wireless door chime wherever you want—no outlet. It is compact and portable, you may take it outdoors temporarily, while indoor use is recommended for stable performance. And the battery life? Up to 24 months for both the door chime receiver and door sensor
• Door Chimes When Door Opens: Door alarms when opened also work as a door open alert and toddler door alarm—great for watching toddlers or elderly family members with dementia. For shops and offices, the same kit is a door chime for business when entering, so you know when customers or guests arrive
• 500FT Wireless Operating Range & Expandable: With a 500‑foot(approx.152m) wireless range, this door chime and door sensor cover every door in your home or store with ease. You can assign a different ringtone to each sensor—so you always know exactly which door was triggered
• 36 Chimes & 5‑Level Volume: Choose from 36 chime tones and 5 volume levels, from mute to 110dB. When sleeping, just mute the sound and let the LED flash alert you visually. Built-in memory function saves your selected ringtone and volume settings even after battery replacement
• Compact & Easy to Install: Pre-paired wireless doorbell chime ready out of the box. Install with included double-sided tape or screws, no messy wiring. Perfect for homes. It also serves as a door open alarm & door alert sensor, a reliable wireless door sensor chime for daily entry monitoring
• Multi-Function Push Button: More than door-open detection, this door sensor has a built-in button for multiple daily applications. Use it as a visitor wireless doorbell or family help call trigger. Pair with door chime receiver for flexible entry alerts. Suitable for apartments, homes & small businesses

Overview

• Color : black
• Brand : Hapippofa
• Product Dimensions : 4.88"L x 3.54"W x 3.62"H
• Battery Description : Alkaline
• Number of Batteries : 2 AA batteries required. (included)