APC SL-2000-P 4-Wire Photoelectric Duct Smoke Detector
- Operating voltages: 230VAC, 115VAC, 24VAC, 24VDC
- Interconnect up to 30 units for common functions
- Patented “No-Tools Required” front or rear loading and removing sampling/exhaust tubes
- Patented “Test Port Valve” allows for aerosol smoke testing without cover removal
- Clear cover fitted with four captive “No-Tools Required” thumbscrews
- Instantaneous cover removal trouble indication