RF (Radio Frequency) field meter, ZAR Model 300

ZAR Checker Model 300 RF Field Meter, which is used to measure radio frequency electromagnetic fields. This type of meter is commonly used to detect EMF radiation from various sources, such as power lines, appliances, and electrical wiring. The Model 300 is designed for high sensitivity and dynamic range surveys, with an integral shock-resistant cover. It features a lightweight design and automatically detects and zeroes probes upon startup. It also has the ability to store readings, and has time and spatial averaging capabilities.