©2010 John Sherman Agencies Ltd. Reed EMF-822A Electro-Magnetic Field Tester This compact unit will measure electromagnetic radiation levels emitted by CRT devices, power lines, faulty wiring, fans and other equipment which may generate electro-magnetic fields. Specifications: Range: 0.1-199.9 mGauss and 0.01-19.99 microTesla Frequency Range: 30 to 300 Hz Accuracy: ±4% at 50/60Hz (Single Axis) Sampling Rate: 2.5 readings/second Power Supply: 9V Battery Contact Us! John Sherman Agencies Ltd. 1641 Venables Street Vancouver, BC V5L 2H1 Phone: 604-254-9622 or 877-251-9622 Fax: 604-254-3123 email: info@johnsherman.com