Hikvision DS-2TD2528T-3/Q Explosion-Proof Thermographic Thermal & Optical Bi-spectrum bullet camera series are applied to perimeter defense and fire-prevention in critical infrastructures such as oil industry, mine fields, chemical industry, port, and grain processing industry. It adopts 316L stainless steel material to meet the requirements of used in explosion-proof environment. The accurate temperature measurement system sends you alarms to protect your property.