The Vertex VX-820 professional series handheld radio is available in UHF or VHF and has 5 watts of power with 16 or 512 channels.

All VX-820 portables, as a standard feature, are rated for IP55 and IP57. This covers dust and water intrusion. First, Ingress of dust shall not penetrate in a quantity to interfere with satisfactory operation of the apparatus or to impair safety.

Two Way Direct rates this two way radio as a Professional Series Radio with a 4.5-Star Durability Rating based on Military Specification Standards. The MIL-STD-810 series of standards are issued by the United States Army's Developmental Test Command, to specify various environmental tests to simulate conditions that the VX-820 will encounter in the field.

Comparable handheld radios include:
Motorola: EX500, EX600
Kenwood: TK2140, TK3140, TK2180
Vertex: VX-820
Icom: IC-F50 / IC-F60, IC-F50V / IC-F60V

Applications:
Airports
Casinos
Concert Management
Construction
Delivery
Energy
Entertainment
Fire
Gas
Golf Courses
Manufacturing
Marine
Oil
Outdoors
Race Teams
Shipping
Ski Patrol
Theme Parks
Transportation
Utilities