LINOVISION 4K Ultra Explosion-proof POE IP Camera, Wide Viewing Angle Lens, Stainless Steel Anticorrosion Case, Infrared Night Vision, Corrosion Protection Camera for Refinery/Marine Oilfield/Gas

LINOVISION 4K UltraHD Explosion Proof POE IP Camera with Wide View Lens, Stainless-Steel Corrosion-Proof Case, IR Night Vision, Anti-Corrosion Camera for Refine Factory/Ocean Oil Field/Gas Station

LINOVISION Industrial 8-Port Full Gigabit Unmanaged POE Switch with 2 SFP Uplinks, 4 BT 90W PoE Ports, POE Watchdog, Redundant Power, DIN-Rail POE Switch for PTZ Camera/POE Lighting/ POE Monitor

TP-Link 5-Port Gigabit Desktop Switch with 4-Port PoE TL-SG1005P