UPGRADED K2-B Deluxe EMF GHOST HUNTING Meter(Built-In Constant On-Off Switch) With LOW VOLUME SOUND AND With INSTRUCTIONS- -Has The SAME EFFECTIVENESS And POWER As The ORIGINAL K 2 Meter. These Models Have Been Used On Hundreds(If Not Thousands) Of Investigations With Outstanding Results! NOTE: This Is A KII That Provides An Audible LOW VOLUME Sound When EMF Is Detected. The Sound Produced Is LOW, As To Not Interfere With The Investigation. The Low Volume Sound It Produces Resembles That Of A Geiger Counter And The Sound Intensifies(Gets Louder) As Each Of The Detector Bars Light Up. However, Please Note Once Again That The Sound Is LOW So As To Not Interfere With Any Evidence Collected. ALL Other KII Specifications And Operating Functions Are The Same As Any Other KII Meter. Model: KII-B The KII-B Simply Takes The Popular KII Meter And Adds A Low Volume Buzz Sound When EMF Is Detected. The Sound Feature Allows A Paranormal Investigator To See The Illuminated LED's And Hear EMF Detection At The Same Time. Unlike A Standard KII, This Allows The Investigator,And Others To Physically "Hear" The EMF Change As It Occurs. This Audible Technique Also Helps To Validate Your Experience Because Someone Is Usually Running A Recorder Or DVR Which Will Pick Up The Audible EMF Change. Excellent Audible Alert For Monitoring EMF Change In A Remote Location. The Audible Buzz Increases As EMF Field Strength Increases. These Are The Units Used By The PROS, Including TAPS(The Paranormal Group Starring In The SCI-FI Channel Tv Show "Ghost Hunters"). If You Want A Quality EMF Meter, The One Used By The Pros, THIS IS WHAT YOU NEED! =) Electromagnetic Fields, Or EMFs, Are Emitted By Electrical Devices Of All Types. EMFs Are Everywhere, Originating From Appliances, Cell Phones, Electrical Wiring, And Even The Human Body. The K-II EMF Meter Helps Measure These Fields To Identify Appliances That Produce High-Level Emissions, Allowing Users To Make Informed Decisions About Limiting Exposure. EMF Fluctuations Have Also Been Associated With Locations Where Unexplained Phenomena Have Been Reported, Including Alleged Hauntings. The K-II Operates On A Single 9V Battery, And Reports EMF Measurements In Five MilliGauss Ranges. Instantaneous 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 50-60 Hz