CT3 Contact Sensor

Name: Onvis CT3 Contact Sensor
Brand: Onvis
SKU: onvisct3contactsensor
Rating: 3.9 (6 reviews)

Smart Security

Key Hardware & Protocol Features

Matter over Thread
Real-time alerts
History log
Compact design

Verified Deep-Link Handoffs (Registry, Retail & Corporate)

Official CSA Certification Registry → Amazon Smart Home Store → Best Buy Availability → Compare Retailers (Google Shopping) → Corporate Profile (Shenzhen ChampOn Technology Co., Ltd.) →

Onvis Corporate DNA & Headquarters

Full Brand Portfolio (3.9/5) →

Parent Company Shenzhen ChampOn Technology Co., Ltd.

Headquarters Location China

Corporate Structure Private

Ecosystem Strengths

Early adoption of Apple HomeKit, Thread, and Matter standards; highly affordable smart sensors, plugs, and light strips; reliable local control without requiring a proprietary hub.

Considerations

Inconsistent firmware stability causing occasional connectivity drops; rudimentary mobile app design; budget plastic hardware construction.