The Ghost Meter EMF Sensor, Transparent Description From the Manufacturer The Ghost Meter has been calibrated to ignore the extremely subtle EMF emissions surrounding the human body, yet is still sensitive enough to detect the small, distinct, erratic EMF energy fluctuations frequently found at reputed haunted locations. The Ghost Meter provides three corroborating indicators of EMF emission strength. A needle based display, LED lights, and an adjustable audio signal. The response time of this meter is excellent, easily outperforming more expensive EMF meters. It can also be operated in silent mode so it doesn't interfere with EVP (Electronic Voice Phenomenon) recordings or distract other investigators during an investigation. Compare the value this meter offers compared to other brands. There is no other offer that comes close to providing these levels of features and performance for the price. You've seen television ghost hunters use similar detectors. Now you can get your own and start investigating the unknown. Please note: this product is intended to measure electric fields, and does not detect nuclear radiation. Features: Simple one-handed operation Low- or no-light operation Fully-adjustable audio tone Flashing led lights Signal-strength indicator Product Details: Brand: Alternative Tech International Color: Transparent Mounting Type: Tabletop Number of Batteries: 1 9V batteries required. Manufacturer: ‎Technology Alternatives Corp Part Number: ‎GHOSTMETER Item Weight: ‎5.6 ounces Product Dimensions: ‎8.5 x 6.5 x 1.5 inches Item model number: ‎GHOSTMETER Batteries: ‎1 9V batteries required. Is Discontinued By Manufacturer: ‎No Size: ‎4" x 6" x 1" Color: ‎Transparent Material: ‎Plastic Item Package Quantity: ‎1 Mounting Type: ‎Tabletop Batteries Included?: ‎No Batteries Required?: ‎Yes Warranty Description: ‎1 yr parts and labor Date First Available: November 19, 2007