Personal Alarm Keychain – 120dB Infrared Sensor & LED Light
Personal Alarm Keychain – 120dB Infrared Sensor & LED Light
Personal Alarm Keychain with Infrared Sensor & 120dB Alert
Stay confident and prepared wherever you go with this compact personal alarm keychain. Featuring an infrared motion sensor and a powerful 120dB alert, this dual-function device is designed for everyday carry — whether you're commuting, traveling, or securing your home. Small enough to clip to your keys or bag, it's a discreet yet highly effective security tool.
Made in Mainland China.
Key Features
- 120dB Loud Alert: Emits a strong, attention-grabbing alarm sound for 15 seconds upon detecting motion, then automatically resets.
- Infrared Motion Detection: Detects people or animals near human body temperature within a range of up to 3 meters — ideal for doorways, windows, and personal spaces.
- Built-in LED Indicator Light: Integrated LED light adds a practical secondary function for low-light situations.
- Compact & Portable: Measures just 6.70 × 3.80 × 2.40 cm — lightweight and easy to carry on a keychain, bag, or belt loop.
- Durable ABS Construction: Made from high-quality ABS material, built to resist deformation and withstand daily use.
- Auto-Reset Function: After a 15-second alert, the device automatically resets and re-enters standby mode — no manual reset needed.
- Ultra-Low Standby Power: Draws only 100µA in standby mode, maximizing battery life.
- Home & Travel Use: Place near a door, window, or any area you want monitored — perfect for hotel rooms, dorm rooms, or home entry points.
Specifications
- Color: Black
- Material: ABS, LED
- Dimensions: 6.70 × 3.80 × 2.40 cm / 2.63 × 1.49 × 0.94 in
- Induction Distance: Up to 3 meters
- Alarm Sound Level: 120dB
- Standby Power Consumption: 100µA
- LED Light: Yes
- Power Supply: 3 × LR44 batteries
What's in the Box
- 1 × Personal Alarm Keychain
Pair It With
Looking for more accessories for your everyday carry? Check out our Metal Q Ring Spring Clasps – Gold & Silver Plated for attaching your keychain accessories, or explore our Multicolor Pompom Plush Fur Ball Beads to personalize your keychain setup.
Learn more: OSHA on eye and face protection
Frequently Asked Questions
Q: How does the infrared sensor personal alarm keychain work?
A: The personal alarm keychain uses an infrared temperature sensor to detect people or animals within a 3-meter range. When motion is detected in the coverage area, it triggers a 120dB alarm that sounds for 15 seconds before automatically resetting and re-entering standby mode — no manual reset required.
Q: What batteries does the personal alarm keychain use, and how long do they last?
A: This keychain alarm is powered by 3 × LR44 button cell batteries. With an ultra-low standby power consumption of just 100µA, the batteries are designed to last a long time during normal use, making it a reliable companion for travel and everyday security.
Q: Can this alarm be used for home security as well as personal carry?
A: Yes! This compact alarm is dual-function. Attach it to your keychain for on-the-go use, or place it near a door, window, or entryway at home to detect unexpected motion and deter unauthorized entry. Simply position it on a stable, vibration-free surface within 3 meters of the area you want monitored.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.