The GEM Resettable Call Point features a resettable operating element that produces no dangerous glass shards, making it suitable for use in high traffic areas, such as schools, shopping malls, or commercial buildings. CP-42GBZ-LB-ALM Features: - Backlight illumination: Green (normal state), Red (activated) - Built-in buzzer: 85 dB - Limit switch contact output - Clear Plastic Cover - Reset key included - DPDT Contact - Resettable Element