TECKNET - Door & Window Alarm, Two-Way, 2-in-1 Chime & Alarm, Kids Safety, 3-Level Volume, Home Security, 3 Pack
Model: MC-03
SKU: 13142444
Reviews coming soon
Reviews coming soon
Stay aware of every door and window with this TECKNET alarm. When the sensor and magnet separate beyond 0.78 inches, a loud alarm sounds instantly—and if the battery runs low, a short beep reminds you to replace it in time. Choose from five switchable modes to match any situation: open-door alarm that stops when closed, a gentle ding-dong doorbell, a 30-second alarm after opening, a continuous beep that stops when closed, or a 15-second delay followed by a 30-second alarm. Three volume levels, adjustable by holding the SET key, let you tailor the alert for apartments, offices, hotels, garages, and more. The magnetic sensor works on both sides for flexible bidirectional installation—just peel and stick to any clean surface, keeping the sensor within 0.78 inches of the arrow. Powered by three included LR44 batteries and backed by a 24-month warranty (registration required), it’s a simple, reliable way to protect your home.
When alarm and magnet separate over 0.78", it sounds an alarm. A short beep after alarm means low battery—replace it soon
Short press to switch: 1) Alarm when door opens, stops when closed; 2) Ding-dong doorbell; 3) 30s alarm after opening; 4) Continuous beep when open, stops when closed; 5) 15s delay then 30s alarm
3-level volume, ideal for apartments, mobile homes, offices, hotels, garages. Hold SET to adjust. Built-in 3×LR44 batteries
Magnet works on both sides for bidirectional installation. Peel and stick on doors/windows. Keep area clean; sensor within 0.78" of arrow
Contact our professional customer service for any issues. TECKNET 24-month warranty (registered only)
We’ll try to get your question answered within 24 hours by a Best Buy customer or brand representative.
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