UPGRADED K2-B Deluxe EMF Meter with Built-In Constant On-Off Switch and LOW VOLUME SOUND. Includes instructions. Offers the same effectiveness and power as the original K2 meter. Widely used in investigations with reliable results.NOTE: This model provides an audible low volume sound when EMF is detected. The sound is intentionally low to avoid interference during use. The tone resembles a Geiger counter and increases in intensity as each detector bar lights up. Please note the sound is low to prevent disruption of recorded evidence. All other specifications and operating functions are consistent with standard KII meters.Model: KII-B The KII-B builds upon the popular KII meter by adding a low volume audible alert when EMF is detected. This feature allows users to both see the illuminated LED bars and hear the detection signal simultaneously. Unlike standard models, this enables immediate awareness of EMF changes. The audible feedback can also be captured by recording devices, helping to document field variations. Ideal for monitoring EMF changes in remote locations. The buzzer intensity increases with higher EMF field strength.Commonly used by professional investigative teams. A reliable choice for those seeking a quality EMF meter.Electromagnetic fields (EMFs) are emitted by various electrical sources including appliances, wiring, cell phones, and more. The K-II EMF meter measures these fields across five milliGauss ranges, helping identify high emission sources so users can make informed decisions about exposure. The device operates on a single 9V battery.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