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Door Chime When Door Opens, Door Opened Sensor x 2 - Portable Receiver x 1
✅ In stock
F
Grade
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Oct 28, 2026 7:44 AM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
0/20
Deal Strength
0/20
Momentum
0/10
📝 Product Overview
🏪 Sold by
Mosaic Alarm
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓【Package Including】1 x Rechargeable Portable Alarm Receiver (Model MH102 - 4 Adjustable Volumes: Mute-L-M-H & 30+ Ringtones Selectable) ; 2 x Door Open Sensors (Model KF104); USB Charging Cord (*CHARGER NOT INCLUDED)
✓【Portable Alarm Receiver VS Traditional plug-in Receivers】The receiver is fully portable and rechargeable, giving you complete freedom to place it wherever you need it most. Anywhere else you want instant alerts without being tied to an outlet. Move it easily around your home: Kitchen, Living room, Bedroom, Yard, Garage, Workshop, or Basement.
✓【1-Year Long Standby Life with Low-Battery LED Indicator】The alarm receiver lasts up to 12 months in a typical home environment with normal everyday use on a single full charge. Based on a one-year usage cycle, its power consumption is only 1/100 that of a wall-plug receiver, making it more environmentally friendly and energy-efficient.
✓【Door Opened Sensor】This is a 2-in1 device, You can use it in whichever way you need. E.g. Door Open Alarm: Install it on a door to be notified when it opens. This is great for keeping track of toddlers or alerting you if an elderly person with dementia or kids/pest tries to leave the house. Or Single Door Chime: When a visitor or delivery person presses the button, the Receiver will sound, alerting you to their presence.
✓【500 ft Coverage Range - Covering Your Entire Home】Including the outdoors, yard, garage, shed, porches, driveway, lane around your house; the indoors (upstairs, basement). The effective working range between the door sensor and the alarm receiver is up to 500 ft / 150 m (tested in the lab’s open field). The actual effective range may vary due to building obstructions or other signal interference.
✓【Support for More Expansion Devices】-You can purchase additional Door Chime (KF104) directly from our Mosaic Alarm Amazon store to connect them to the Receiver(MH102). —no limit on how many devices you can add. We also offer a range of other compatible expansion devices, including: Elderly SOS Panic Button (KF22); Motion Detector (KF106); Motion Sensor Alarm (MH105). Expand your security system anytime to fit your specific safety needs. Please scroll down for more details.
⚙️ Specifications
Color
White
Brand
Mosaic Alarm
Power Source
Battery Powered
Number of Batteries
1 Lithium Ion batteries required. (included)
Mounting Type
Door Mount
Maximum Range
500 feet
Sensor Technology
Contact Sensor
Shape
2 Door Open Sensors
Item Highlight
USB Rechargeable Receiver, Adjustable Volume. 500 FT Range. 30+ Ringtones Entry Alarm for Home/Kids Safety/Business
Unit Count
1 Count
Manufacturer
DongGuan HouJie Mosaic Electronics Factory
