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YL-333 Magnetic Anti-theft Alarm for Door/Windows
Protect your home, office, or workshop with the YL-333 Magnetic Anti-theft Alarm - a compact, wireless magnetic contact sensor that triggers a loud alarm when doors or windows are opened without authorization. Ideal for DIY security systems, IoT projects, and standalone intrusion detection. Available at The Engineer Store, Bengaluru, India. Fast shipping, 7-day warranty on manufacturing defects, and expert technical support.
Specifications
| Model | YL-333 |
| Type | Magnetic Contact Door/Window Anti-theft Alarm |
| Detection Principle | Reed Switch with Magnetic Separation Trigger |
| Alarm Volume | >=100 dB (High-Decibel Siren) |
| Power Supply | 3 x AAA Batteries (1.5V each, not included) |
| Trigger Distance | Alarm activates when magnet separates >15mm from sensor unit |
| Modes | Alarm Mode / Door Chime Mode (selectable) |
| Installation | Adhesive Tape / Screw Mount (both supported) |
| Material | ABS Plastic Housing |
| Color | White |
| Dimensions (Main Unit) | Approx. 90 x 25 x 20 mm |
| Dimensions (Magnet Unit) | Approx. 50 x 12 x 15 mm |
| Weight | Approx. 60 g (without batteries) |
| Wireless | Yes - No wiring required |
| Suitable For | Doors, Windows, Cabinets, Drawers, Safes, Sliding Doors |
| Operating Temperature | -10 degreesC to +55 degreesC |
| Origin | Original / Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Key Features
- Loud 100+ dB Alarm: Piercing siren instantly alerts you and deters intruders the moment a door or window is opened.
- Dual Mode Operation: Switch between high-volume alarm mode for security and gentle chime mode for visitor notification.
- Magnetic Reed Switch Technology: Reliable, proven detection - alarm triggers automatically when the magnet unit separates from the main sensor body.
- Completely Wireless: Battery-powered with no wiring needed, making installation quick and hassle-free on any surface.
- Easy Installation: Mount using included double-sided adhesive tape for non-permanent setups or screws for permanent fixtures.
- Compact & Discreet: Slim white ABS housing blends seamlessly with door frames, window sills, and cabinetry.
- Low Power Consumption: Runs on 3 x AAA batteries with long standby life - remains vigilant for months on a single set.
- Versatile Placement: Works on wooden doors, metal doors, aluminum windows, sliding windows, drawers, cabinets, and safes.
- ON/OFF Switch: Convenient power switch to arm or disarm the alarm as needed.
- No Hub Required: Standalone operation - no Wi-Fi, app, or central panel needed for basic security coverage.
Why Choose the YL-333 from The Engineer Store?
- 100% authentic product sourced from trusted, authorized suppliers
- 1-5 day shipping, 7-8 day delivery from our Bengaluru warehouse to most locations across India
- Expert technical support included - get help with installation, integration, and troubleshooting
- Perfect for engineers, makers, and security enthusiasts who want reliable, affordable protection
- Ideal standalone alarm or building block for larger DIY/IoT security systems
- Backed by 7-day warranty on manufacturing defects for complete peace of mind
How It Works
- Step 1: Insert 3 x AAA batteries into the main alarm unit.
- Step 2: Mount the main alarm unit on the door/window frame (the fixed side) using adhesive tape or screws.
- Step 3: Mount the smaller magnet unit on the door/window panel (the moving side), aligned directly adjacent to the main unit.
- Step 4: Select your preferred mode - Alarm or Chime - using the mode switch.
- Step 5: Turn the unit ON. When the door or window opens and the magnet separates from the sensor beyond ~15mm, the alarm sounds immediately.
- Step 6: Close the door/window to bring the magnet back in contact and the alarm stops automatically.
Project Ideas
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy YL-333 Magnetic Anti-theft Alarm for Door/ Windows Online in India
Purchase the YL-333 Magnetic Anti-theft Alarm for Door/ Windows online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on YL-333 Magnetic Anti-theft Alarm for Door/ Windows with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy YL-333 Magnetic Anti-theft Alarm for Door/ Windows at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.
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YL-333 Magnetic Anti-theft Alarm for Door/Windows
Protect your home, office, or workshop with the YL-333 Magnetic Anti-theft Alarm - a compact, wireless magnetic contact sensor that triggers a loud alarm when doors or windows are opened without authorization. Ideal for DIY security systems, IoT projects, and standalone intrusion detection. Available at The Engineer Store, Bengaluru, India. Fast shipping, 7-day warranty on manufacturing defects, and expert technical support.
Specifications
| Model | YL-333 |
| Type | Magnetic Contact Door/Window Anti-theft Alarm |
| Detection Principle | Reed Switch with Magnetic Separation Trigger |
| Alarm Volume | >=100 dB (High-Decibel Siren) |
| Power Supply | 3 x AAA Batteries (1.5V each, not included) |
| Trigger Distance | Alarm activates when magnet separates >15mm from sensor unit |
| Modes | Alarm Mode / Door Chime Mode (selectable) |
| Installation | Adhesive Tape / Screw Mount (both supported) |
| Material | ABS Plastic Housing |
| Color | White |
| Dimensions (Main Unit) | Approx. 90 x 25 x 20 mm |
| Dimensions (Magnet Unit) | Approx. 50 x 12 x 15 mm |
| Weight | Approx. 60 g (without batteries) |
| Wireless | Yes - No wiring required |
| Suitable For | Doors, Windows, Cabinets, Drawers, Safes, Sliding Doors |
| Operating Temperature | -10 degreesC to +55 degreesC |
| Origin | Original / Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Key Features
- Loud 100+ dB Alarm: Piercing siren instantly alerts you and deters intruders the moment a door or window is opened.
- Dual Mode Operation: Switch between high-volume alarm mode for security and gentle chime mode for visitor notification.
- Magnetic Reed Switch Technology: Reliable, proven detection - alarm triggers automatically when the magnet unit separates from the main sensor body.
- Completely Wireless: Battery-powered with no wiring needed, making installation quick and hassle-free on any surface.
- Easy Installation: Mount using included double-sided adhesive tape for non-permanent setups or screws for permanent fixtures.
- Compact & Discreet: Slim white ABS housing blends seamlessly with door frames, window sills, and cabinetry.
- Low Power Consumption: Runs on 3 x AAA batteries with long standby life - remains vigilant for months on a single set.
- Versatile Placement: Works on wooden doors, metal doors, aluminum windows, sliding windows, drawers, cabinets, and safes.
- ON/OFF Switch: Convenient power switch to arm or disarm the alarm as needed.
- No Hub Required: Standalone operation - no Wi-Fi, app, or central panel needed for basic security coverage.
Why Choose the YL-333 from The Engineer Store?
- 100% authentic product sourced from trusted, authorized suppliers
- 1-5 day shipping, 7-8 day delivery from our Bengaluru warehouse to most locations across India
- Expert technical support included - get help with installation, integration, and troubleshooting
- Perfect for engineers, makers, and security enthusiasts who want reliable, affordable protection
- Ideal standalone alarm or building block for larger DIY/IoT security systems
- Backed by 7-day warranty on manufacturing defects for complete peace of mind
How It Works
- Step 1: Insert 3 x AAA batteries into the main alarm unit.
- Step 2: Mount the main alarm unit on the door/window frame (the fixed side) using adhesive tape or screws.
- Step 3: Mount the smaller magnet unit on the door/window panel (the moving side), aligned directly adjacent to the main unit.
- Step 4: Select your preferred mode - Alarm or Chime - using the mode switch.
- Step 5: Turn the unit ON. When the door or window opens and the magnet separates from the sensor beyond ~15mm, the alarm sounds immediately.
- Step 6: Close the door/window to bring the magnet back in contact and the alarm stops automatically.
Project Ideas
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy YL-333 Magnetic Anti-theft Alarm for Door/ Windows Online in India
Purchase the YL-333 Magnetic Anti-theft Alarm for Door/ Windows online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on YL-333 Magnetic Anti-theft Alarm for Door/ Windows with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy YL-333 Magnetic Anti-theft Alarm for Door/ Windows at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.