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Shop nowLow-Voltage Equipment · GRI
The parts that make it work.

The GRI 4561 is a miniature mercury tilt sensor switch from GRI (George Risk Industries). It detects when an object is moved or tilted, which suits protecting valuables like paintings and museum pieces, or watching equipment covers for tampering. Its small profile makes it easy to place where a larger sensor would be conspicuous.
Brand: GRI
Model: 4561
Vendor Name: George Risk Industries
Product Type: Door Sensor
Application/Usage: Apartment
Installation Type: Hybrid (DIY + Professional)
Country of Origin: US
Mount the sensor firmly on the item or cover you want to protect, since a tilt sensor reacts to orientation changes and a loose mount can cause false alarms. Test it after installation by tilting or moving the protected item and confirming the alarm input responds at your panel.
| Brand | GRI |
|---|---|
| Model | 4561 |
| Product type | Tilt Sensor Switch |
Specs are taken from the manufacturer listing. Need a detail that isn't here? Ask us.
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