40'X 56' RECESSED MOUNT PIR

Superior RFI Test Methods

The Radio Frequency Interference (RFI) test method used by ADEMCO's Quality Assurance department is superior to the methods used by most other manufacturers.

A Transverse ElectroMagnetic (TEM) cell used by most other manufacturers is a small chamber in which products are placed and then irradiated with RF energy at an established level to try to induce a false alarm. Unfortunately, TEM cells are susceptible to standing waves and other phenomena which have a tendency to overstate the level of immunity.

ADEMCO uses a full-size, shielded RF chamber that more realistically emulates real world conditions. To maintain high accuracy, the chamber is calibrated to the desired RF energy level at every test frequency prior to running each test. Comparison tests between and ADEMCO's full-size chamber and a TEM cell have shown that an immunity of 10V/m in ADEMCO's chamber corresponds to an immunity of 20-30V/m in a TEM cell.

Main Features

• Includes lens masking labels, plug-in wiring harness, color matched mounting hardware
• 40' x 56' coverage
• Attractive styling
• Fits single gang box or can be recessed into wall
• Built-in "Signature Analysis" pulse count reduces false alarms
• Horizontal and vertical adjustment
• Excellent RFI immunity
• SMD constructio