Home-improvement door sensor designed for reliable wired contact detection on garage and roller doors, introduced as Ohamtes Door Magnetic Contact Sensor. That gives homeowners and small workshops straightforward intrusion monitoring and greater peace of mind. Is this a durable replacement for older alarm setups and outdoor door applications?
⚡ At a Glance
- • Detection Performance: Sensitive reed switch with 50–70mm induction distance and stable signal response
- • Best for: Securing garage doors, rolling shutters and large door or window openings
- • Not ideal for: Circuits requiring more than 100V, 0.5A or 10W electrical capacity
Zinc-alloy sealed housing with imported reed switches gives dustproof and corrosion-resistant protection. NC and NO contacts suit wired access control and anti-theft alarm systems for large doors and windows.
Fast and reliable door detection - with imported reed switch and permanent magnet contacts
Imported reed switches combined with permanent magnet contacts deliver fast reflection and a sensitive response, producing stable and reliable signals within the specified induction range. Maximum electrical ratings are 10W power, 100V voltage and 0.5A current.
Quick, dependable detection reduces missed openings and supports timely alarm activation for garage doors and rolling shutters.
Built for harsh conditions - with zinc-alloy sealing and silver-grey electroplating
Zinc alloy material sealing and silver-grey electroplating protect metal surfaces, while high-quality packaging and wiring resist cold and heat for extended service life. The assembly is described as dustproof, waterproof and corrosion-resistant.
Durable construction helps the unit cope with dusty or damp garage environments and lowers the need for frequent replacements.
Easy retrofit and wide wiring compatibility - with NC & NO output and compact dimensions
NC&NO output allows connection to normally closed or normally open alarm circuits, and the compact dimensions are 105mm x 50mm x 10mm with a 50–70mm induction distance. Packaging includes one set of the NC&NO type door sensor alarm.
Compact size and dual-contact wiring make the unit straightforward to replace older sensors and integrate with common access control and anti-theft systems.
✨ The 4 Key Reasons for Ohamtes Door Magnetic Contact Sensor
- Zinc-alloy sealing - Resists dust and corrosion for long outdoor service life
- Sensitive reed switch - Detects openings within 50–70mm, ensuring timely alarm triggers
- NC & NO contacts - Compatible with both normally closed and normally open alarm circuits
- Compact 105x50x10mm size - Fits narrow frames and replaces older sensor units neatly
📋 Technical Details at a Glance
- Category: Door magnetic contact sensor
- Brand: Ohamtes
- Contact Type: NC & NO
- Sensing Mechanism: Reed switch with permanent magnet contacts
- Induction Distance: 50–70mm
❓ Frequently Asked Questions
Q: Suitable for garage doors and rolling shutters?
A: Yes. Application notes list garage doors, rolling shutter doors and automatic doors among suitable uses for opening and closing protection and monitoring.
Q: Supports NC and NO alarm circuits?
A: Yes. Packing specifies NC & NO type door sensor alarm, compatible with both normally closed and normally open setups.
Q: Can it handle outdoor or dusty conditions?
A: Designed with zinc-alloy sealing, silver-grey electroplating, and dustproof and waterproof properties; wiring is cold and heat resistant for extended service life.
🏆 Our Verdict
Suited to homeowners, small workshops and installers who need a straightforward wired contact for large doors and shutters. Durable sealing and sensitive reed contacts deliver dependable opening detection and compatibility with common alarm wiring. Compact dimensions and rugged materials give long-term value through fewer replacements and easy retrofitting.
