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Aaronia AG - Detecting and avoiding electrosmog. Super sensitive held meters with 10 LEDs display and sound warning. Models: HF-Detector, Multidetector II Profi, Multidetector II Plus, Multidetector II.    http://www.emf-meter.com/emf-meter-detector.htm
- Short version of Aaronia EMF Detector manual - word 31 kB. 
- Basics about Electrosmog-Meter:     Electrosmog-meters (also known as gaussmeter, teslameter, emf-meter, ELF-meter, hf-meter/detector) are used to detect electrosmog (electric and electromagnetic fields/rays). As the world leader in electrosmog measuring equipment for home and office our electrosmog-meter represent the latest design and technology. Since 2000 all devices are based on our total new, worldwide patented sensor. This sensor offers you professional readings at very low cost. With our electrosmog-meters you can check outlets and electrical cords, especially in the bedroom. They determine the effectiveness of your electric shielding devices, and will assist greatly in positioning your furniture. Our motto: "If you don't check, how will you know?". All meters have a special easy to read radiation free light bar scale that show all readings in exact DIGITAL VALUES and in 11 "color-steps" from green to red. We DON'T use digital LCD-displays (these displays produce high levels of electrosmog and would not allow accurate readings at the super sensitive mesuring-modes). Our Multidetector II PROFI is the 1st Place winner at the well known swedish "Íko-Audit 2000" (test of 25 devices below US$ 250,--). Surprisingly, it was one of the least expensive meters available. It also is the only meter at this price which combines magnetic and electric detection with switchable frequency-filter in one package! All Multidetector-Devices measure electric fields in V/m. The version Multidetector II PLUS and Multidetektor II PROFI can even measure down to 0,1 V/m! With this extremely super high sensitivity it can detect electric fields from power-lines even in distances up to 1.000m!! Remember: because electric fields occur whenever a voltage difference occurs, you can even detect electric fields from appliances which are plugged in even if they are switched off like electric heating blankets, TVs, powerlines, and just about everything connected to a source of electric power. All our devices also measure the level of ELF magnetic field radiation. E.g. from power lines, computers, kitchen appliances, and more! The Multidetector II Profi also has a integrated "frequency-filter". With a external switch it allows monitoring of high- and low frequency fields (VLF and ELF) separately (measurement of high and low frequency-fields)! Our devices will help you detect irritating sources of electric and electromagnetic fields which may not otherwise be obvious and even nonprofessional can easily handle them. They detect Electric and Magnetic fields with EXTREMELY high sensitivity, very high range and accuracy too.
Instruments for measurements of electric and magnetic fields - Combinova   http://www.combinova.se
EFM 100 - Electric Field Meter, alternating electrical fields.
EFM 200 - Electric Field Meter, electrostatic and alternating electrical fields.
MFM 1000 - Magnetic Field Meter in the VLF (2-400 kHz) range.
MFM 10 - Magnetic Field Meter in the ELF (5-2,000 Hz) range.
MFM 1020 - Automatic Systems for VDT magnetic field measurements.
FD 1 - Handheld magnetic and electric field meter in the ELF (20-2000Hz) range
FD 2 - Handheld magnetic and electric field meter in the VLF (2-400kHz) range
FD 3 - Portable magnetic field logger/dosimeter in the ELF (20-2000Hz) range
Gauss Meter; EMF, RF & Ion Detector Page - AlphaLab Corp, Scientific Instruments   http://www.trifield.com
- Contains information: About Air Ions, About Electromagnetism , and Simple Ways to Avoid Electromagnetic Fields.                   
- Gauss meter (DC) measures magnetic fields from permanent magnets, electromagnets and the Earth.
- Air Shipment Meter (Also called Oersted meter.) Verifies magnetic fields of packages to be shipped by air.
- A static Surface Voltmeter remotely measures surface voltages to 20,000 volts without loading down the surface voltage. It's the only such meter with the probe on a flexible cable. Another surface voltmeter reads up to 500 kilovolts. 
- The Natural EM Meter (models 1 and 2) detect changes in very weak (DC or "natural") electric and magnetic (natural) fields of the Earth as well as radio.
- Air Ion Counter Measures atmospheric electricity.
- Differential Electric Field Mill [available soon - call for details].
- Radio and Microwave detectors include the very sensitive and long-battery-life MicroAlert, along with a version of the TriField meter with an enhanced radio section ("BroadBand" meter). These can be used to detect radio transmitter radiation patterns, microwave leakage, and for surveillance detection.
EMF Meters - AlphaLab, Inc., Trifield, Trifield Natural EM, Micro Alert, Air Ion Counter  http://www.maui.net/~emf
Tools for Prevention & Scientific Research - The 1st Trifield meter is in it's 11th year of production and remains possibly the most comprehensive, compact, versatile, economical, time saving and simple to operate meter on the market, priced under $2,000! Four unique, quality, inexpensive, multiple function instruments are described in detail along with a list of published reviews and related links for each device. The equipment is designed to satisfy the need to measure and / or detect EMF's (electromagnetic fields), RF - Radio/Microwave Fields, Electric Fields, extremely weak static (or "natural") electric and magnetic fields, negative air ions, radon, etc.. 
        AlphaLab's quality instruments can help you find and measure power lines, monitors, TV's, CEL phones - Cell /
Microwave transmission towers, alarm clocks, electric blankets, microwave ovens, surveillance "bugs", moving
airborne magnetic sources, subtle / paranormal phenomena, fluorescent lights, work stations, electric typewriters,
copy machines, negative ions, radon, etc.    
TriField Natural EM Meter - AlphaLab, Inc. http://www.aros.net/~eno/natural_EMF.htm
- MAGNETIC.    The meter is sensitive to changes of as little as 0.5% of the strength of the Earth's magnetic field, and the tone will sound whether the field increases or decreases. Model 2 is sensitive down to 0.05% of the Earth's magnetic field when the optional external coil is used. After the meter detects an event, when the magnetic field then becomes stable for more than about five seconds, the tone will stop and the needle will return to zero. The meter will remain at rest until the field changes again. The threshold level (squelch level) of the tone is adjustable. The user determines the amount of change in the magnetic field required to sound the tone. If the field changes by the threshold amount, the tone will come on at a low pitch. If the amount of change is larger, the tone's pitch will be higher. This meter can also be used to determine if anything is magnetized. For example, if a bed frame is magnetized, the meter can be held vertically and slowly be swept by hand over the bed. Any changes in the direction or strength of the magnetic field will register. A similar process can reveal the presence of magnetic rocks just below the ground.
- The Natural EM Meter can detect geomagnetic storms caused by unusual solar activity interacting with the ionosphere (which results in rapid changes of up to 10% in the Earth's magnetic field), as well as the electrical activity of ordinary thunderstorms. It will signal the movement of any distant, strong magnetic sources in the sky, even if the sky is cloudy or the source dips behind a hill. Ball lightning should in theory be associated with a strong magnetic
field, and magnetization of metal on the ground has been reported with some sightings of unusual lights in the sky.
- ELECTRIC.   When the dial is set to ELECTRIC, the meter is sensitive to electric fields as weak as 3 V/m (volts per meter). Indoors, electric fields typically fluctuate 1 or 2 V/m. By setting the minimum sensitivity to change at 3 V/m, we have designed the meter to disregard this "background noise". A 3V/m field is so feeble that if a 10'x10'x10' room were filled with a field of this strength, it would contain the total amount of energy equivalent to that required to lift a single grain of table salt 1/50th of an inch. Human beings and animals usually emit an electric field which is easily detectable using the Natural EM Meter. In fact, the meter can be used as a motion-activated intruder alarm. It is so sensitive that it can detect the presence of a person through a wall. Though it is not foolproof in this capacity, (sometimes a person will carry no electric charge and thus be "invisible" to the meter), its sensitivity is of interest to researchers in the field of parapsychology. Every type of detectable physical manifestation requires a certain amount of energy. For example, "moving air" requires the expenditure of a small amount of energy to get the air to move initially. Below is a table showing several types of effects or fields emitted by people and objects. It also shows the minimum amount of energy required (per cubic foot of air) to set up that effect or field so that it is stronger than typical indoor "background noise" for that effect or field. Clearly the static electric field is the type that requires the least energy to be detectable.
- RADIO/MICROWAVE.   The radio/microwave detector is sensitive from 100,000 to 2.5 billion oscillations per second (100 KHz to 2.5 GHz) and can detect strong or unusual atmospheric electrical activity. It can also detect leaky microwave ovens, cellular or portable phones, walkie-talkies and concealed surveillance bugs. Its minimum and maximum detectable signal strengths are 0.01 milliwatt/cm2 and 1 milliwatt/cm2 respectively. 
- SUM.   The SUM setting in Model 1 adds together the electric and magnetic fields and detects if either field changes. Model 1 is used to find a disturbance in either type of field, but in the SUM setting it can generally detect if a person approaches to within five or ten feet, even on the other side of a wall. For this reason, Model 1 is preferred for parapsychological research, when, for example, a room to be measured is known to be vacant for an extended period (except for experimenters, who remain relatively still for that period). In Model 2, the SUM setting is magnetic plus radio/microwave (which requires somewhat more battery power to operate than the Model 1 SUM, but Model 2 also has an AC adapter). The SUM setting in Model 2 is for early warning of any unusual atmospheric
electromagnetic activity, such as geomagnetic storms or ball lightning. In this setting, it does not falsely trigger when people walk by.
                                                               Type of Energy Effect or Field

The EMF Safety Superstore  -  EMF Meters & Detectors, EMF Shielding Devices, Low EMF Appliances, Schumann Devices, Educational Kits, Videos, EMF news, links  http://lessemf.com/index.html
- Gaussmeters - Magnetic Field Meters:
- AC Gaussmeters - Measure Powerlines, Appliances, Wiring 
- DC Gaussmeters - Measure Magnets, Earth's Field, Magnetized Iron 
- AC & DC Electric Field Meters 
- Radiofrequency Meters Cell Phones, Towers, Satellite, CB Radio, Radar  Microwave Oven Leakage Meters 
IR, UV & Ionizing Radiation Detectors - InfraRed, UltraViolet, & Radioactivity 
- Combination Meters - Multiple Capability Meters 
- Educational & Build-It-Yourself Kits - Knowledge is Power! 
- Electrical Sensitivity Diagnostic Kit - Test for Sensitivity to Various Fields 
- More Unique Meters - Body Voltage, Surface Resistivity, Air Ions & More! 
 Frequently asked questions about EMF Meters
- What is the real difference between a single axis and a triple axis gaussmeter? 
- I have found strong readings on my meter. How do I find the source of these fields?
- How do I measure a cell tower?
- How do I measure the radiation from my cell phone?
- I want to do paranormal research. Which meters are appropriate?  AC Gaussmeters, Remote Temperature Scanner, Exotic Meters. 
- I think I am being electromagnetically harassed. What equipment do I need?
- At what distance from a source of field can I use a meter (that is, what is the range in distance of a meter)?
- I'm electrically sensitive. To avoid shielding everything in sight, how can I find out what types of EMF I am most sensitive to?
Ghost Hunter's Ring & Resources - Paranormal / parapsychological field materials & TriField Natural EM Meter  http://theshadowlands.net/trifield.htm
GHOSTSTUDY.COM - Ghost detectors, FQA, photo gallery   http://ghoststudy.com/index.html
Stefan Mayer Instruments - Fluxgate Magnetometers and Magnetic Field Sensors, Magnetic Field Compensation Systems, Magnetic Permeability Meters, links   http://www.stefan-mayer.com
Online calculation of Earth's magnetic field   http://www.ngdc.noaa.gov/cgi-bin/seg/gmag/fldsnth1.pl
Fenica - Mobile phone safety products, links, FAQs       http://www.fenica.co.uk/Products.htm
- Radiation Monitor.      Indicates relative levels of radiation emitted by different mobile phones. The monitor has no batteries - it is powered solely by the radiation emitted by the phone it is being used to test. Uses: Enables the user to choose a phone which represents a lower level of exposure than others. Regular checking will provide reassurance that the level of radiation has not increased through component failure, accidental damage or any other reason. Can also be used to test the effectiveness of so-called "shields" or other safety devices.
- Hands-free Filter.       Small, light, inconspicuous device which clips to the hands-free lead, close to the phone. Effectiveness: Radiation reaching the ear is significantly reduced.
K II Enterprises - EMF meter    http://www.kiienterprises.com/saferange/index.html
The Effect of EMF On Plant Growth - Study results, links, resources  http://emfonplants.tripod.ca/credits.html
EM Safe - Cell phone safety emf polarization & technology protection solutions  http://www.emfsafe.com
FEB - The Swedish Association for the ElectroSensitive   http://www.feb.se/index_int.htm
EMF-BioShield USA - Small addition to TV or computer screen eliminates residual radiation. Info text from Computer Edge, San Diego, 6/28/2002, 4kB     http://www.emfbioshield.com
MAGNII TECHNOLOGIES - 3 axis digital AC gaussmeters for measuring low frequency magnetic fields. Variable backlights, max hold, shows you which axis has the highest strength, selectable units   http://www.magnii.com