Item description from the seller

AGPtek Good For Campers Digital Satellite Signal Meter Finder Meter For Dish

Description

• High quality component. Anti-corrosion connectors
• Built-in amplifier compensates insertion loss
• Sensitive meter for in-line use; pocket size and light weight
• With electronic buzzer. Easy operation, attenuation, audio tone and back light
• Powered by the receiver, nice tool for campers. PS: work great with directv hd swim signal; it uses 2X1.5v lithium batteries