UPGRADED K2-B Deluxe EMF Meter with Built-In Constant On-Off Switch and LOW VOLUME SOUND Includes Instructions. This model offers the same effectiveness and power as the original K2 meter. These units have been used in numerous investigations with reliable results.NOTE: This is a KII meter that provides an audible low-volume sound when EMF is detected. The sound is intentionally low to avoid interference during investigations. The tone resembles a Geiger counter and increases in intensity as each detection bar lights up. Please note that the volume remains low to prevent disruption of evidence collection. All other specifications and functions are identical to standard KII meters.Model: KII-B The KII-B builds upon the popular KII design by adding a low-volume audible alert for EMF detection. This feature allows users to both see the illuminated LEDs and hear the EMF changes simultaneously. Unlike standard models, this enables investigators and team members to physically hear fluctuations in real time. The audible feedback can also support validation of events, as audio recorders or DVR systems may capture the sound changes. Ideal for monitoring EMF activity in remote areas. The buzzer increases in intensity with rising EMF field strength.This is the type of EMF meter used by professional investigation teams, including those featured on paranormal television programs. For a dependable and widely recognized EMF meter, this is a suitable choice.Electromagnetic fields (EMFs) are emitted by various electrical devices, such as appliances, cell phones, wiring, and other sources. The K-II EMF meter helps measure these fields, identifying high-emission devices so users can make informed decisions about exposure. The meter operates on a single 9V battery and displays EMF levels across five milliGauss ranges.Features: - Instant response to EMF fluctuations and spikes - Detects ELF range (50 to 1,000 Hz) and VLF range (1,000 to 20,000 Hz) - Simple push-on/push-off operation - Easy-to-read multi-segment LED display - Accuracy of 5% at 5060 Hz