Explosion-safe AR-070 and AR-078 LED Stacklight Towers are designed for Zone 2 and Zone 22 application environments. Each model is rated IP65 without alarm/flashing and IP54 with alarms/flashing and features a robust glass fiber-reinforced polyester base, a 1.5-meter cable and a sealed cable exit. They are ideal for providing user-adjustable audible alarms up to 85dB (AR-070) and 90 dB (AR-078), and highly visible visual status indication in continuous, flashing or alarm modes in gaseous and dusty environments. Units can be wall or direct mounted, and units can be stacked five high in red, amber, green, blue and clear to suit varied application needs. AR-070 models are 40mm in diameter and have an optional 1/2" NPT and AR-078 models are 60mm in diameter and have an optional 3/4" NPT. Both models also feature interchangeable LED modules that elminate the need for any rewiring, even after installation.