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This delightful meter measures electric field from 50 Hz to 18 GHz! Telescoping antenna and one button operation provide the simplicity you want, and the logarithmic scale provides the range you need: from tiny 0.005µW/cm² signals to ridiculously high 40mW/cm² blasts. Just turn it on and read off the meter. Needle gauge offers super-fast response, so you can see the pulses from smart meters and other intermittent emitters too. Perfect for identifying radiation hot spots at home or on the road, and for checking shielding effectiveness. Good quality at a low price!
18 GHz RF Meter (Cat. #A409) .................. $129.95
Breakthrough in low cost RF measurement. Covers 50 MHz to 3.5 GHz and great for digital and analog RF signals. Use in 3-axis (isotropic) measurement mode or check each of the X,Y Z axis! Includes audio alarm with adjustable threshold and 200 point manual memory function. Extremely sensitive: 38 mV/m to 11 V/m (equivalent to .38 nanoWatt/cm² to 30 microWatt/cm²). 4-digit LCD display offers mV/m, A/m, W/cm², or W/m². Display resolution: 0.1mV/m, 0.1µA/m, 0.001µW/m², 0.001µW/cm². Updates 2.5 times per second. Choose to display instantaneous value, maximum value, or average. ±2.4dB accuracy or better. Great for cell tower and wi-fi measurements. Uses 9V battery. 1 yr factory warranty. Model TM-195 Quick Start Instructions for 3-Axis RF Meter (pdf)
3-Axis RF Meter (Cat. #A495) ......... $199.95
Need to measure the new 5.8 GHz phones, baby monitors, DECT phones, wireless routers, surveillance bugs or other frequencies up to 8 GHz? This breakthrough in higher frequency RF measurement covers 10 MHz to 8 GHz and great for digital and analog RF signals. 3-axis (isotropic) measurement. Includes audio alarm with adjustable threshold and 99 point manual memory function. Extremely sensitive: 20 mV/m to 108 V/m (equivalent to 0.1 nanoWatt/cm² to 3 milliWatt/cm²). 4-digit LCD display offers V/m, A/m, W/m², or µW/cm². Choose to display instantaneous value, maximum value, or average. ±1dB accuracy or better. Uses 9V battery. 1 year factory warranty. Model TES-593. Owner's Manual for 8 GHz RF Meter (pdf)
This meter represents both a price and technology breakthrough! Simple hand held meter is so easy to use! Uses ordinary 9V battery (not included). Very sensitive (down to 25mV/m = 1.6 µW/m² = 0.16 nW/cm²) and goes as high as 14.8 V/m (= 580 mW/m² = 58 µW/cm²). Broad frequency range too: 100MHz to 3.0GHz digital or analog signals. ±3.5dBm accuracy. Look at all the information on the LCD screen:
Truly unique tool for personal RF exposure detection and level measurement. Use it to check GSM, TDMA, CDMA, PCS, Wi-Fi and much more. Now check out the price! CE. Model ED-15C.
Basic RF Meter (Cat. #A437) .......... $89.95
Similar to the Basic RF Meter above but with wider frequency range and SOUND!. Very sensitive (down to 25mV/m = 1.6 µW/m² = 0.16 nW/cm²) and goes as high as 14.8 V/m (= 580 mW/m² = 58 µW/cm²). Broad frequency range too: 1 MHz to 8 GHz digital or analog signals. ±3.5dBm accuracy. Includes removeable stubby antenna with SMA connection. Requires one 9V battery. CE. Model ED85EXS.
8 GHz Basic RF Meter (Cat. #A436s) .......... $179.95
More and more wireless devices are reaching into the higher frequency bands. If you need more than a 3 GHz meter and you like simplicity, this unit is a good choice. One ON/OFF button, one-handed operation. Just point and take readings.
Continuous LCD digital readout from 0.0018mW/m² to 580 mW/m² gives plenty of dynamic range. Colored 8-segment LED bargraph, and moving bargraph (histogram) showing recent history of signal strength levels. Covers 100MHz to 6GHz. Measures continuous wave signals (microwave oven, AM/FM for example) and pulsed digital signals (Wi-Fi, WiMAX, DECT, etc). Uses one 9V battery.
RF Power Meter (Cat. #A434) ............. $129.95
We like this calibrated wideband (800 MHz – 2.5 GHz) RF meter because it has a switch which allows a choice of peak or average indication mode. This permits accurate measurement of both digital and analog signals. Two ranges: 1 - 1999 µW/m² (same as 0.1 – 199.9 nW/cm²) and 0.1 - 199.9 µW/m² (same as 0.01 – 19.99 nW/cm²).
In addition, you get a choice of audio tone – none, or intensity proportional to field strength, or proportional to frequency (for analyzing pulsed signals)
The display on the HF35C updates every 0.5 second. The fastest pulse it can detect is 0.5 micro seconds.
High Frequency Meter (Cat. #A481) ........ $429.95
Just like the High Frequency Meter above but examines 27 MHz - 3.3 GHz, with residual sensitivity to 6 GHz. Includes both a directional and an omni-directional antenna. Model HFE35C.
Extended Range High Frequency Meter (Cat. #A483) ........... $995.00
Extends Dynamic Range of High Frequency Meter Is the High Frequency Meter too sensitive for your application? This Attenuator reduces sensitivity by a factor of 100 so you can measure stronger signals. Changes sensitivity range from 0,1-1999 µW/m² to 10-199,900 µW/m² (equivalent to 0.001-19.99 µW/cm²). Need to go still higher? Stack as many as you like to achieve the desired range. Designed specifically for the High Frequency Meters. Inserts between antenna and meter body.
20 dB Attenuator (Cat. #A485) …… $89.95
The Acoustimeter is a user-friendly accurate RF measurement instrument which provides LED light and LCD text displaying peak, peak hold, and average levels of radio frequency electromagnetic fields, covering the spectrum from TETRA all the way up to and beyond the 5.6 GHz WiFi and WiMax frequencies. It has a digital readout which is sensitive 0.02 V/m - 6.00 V/m and a sound output enabling you to hear the signal modulation. These features make the instrument the most useful one available to even those with severe electrosensitivity. The Acoustimeter has been designed to enable you to make a quick and informed judgement regarding the level and nature of microwave signals in your environment. It is a broadband instrument that accurately measures the totality of the radiation in the range 200 MHz to about 8000 MHz (8 GHz), which covers the frequencies used by most modern communication systems encountered in our everyday environment. The Acoustimeter was designed using the experience gained from many years of practical RF and microwave measurements. The readings are shown on both an LCD display and two series of graduated LED lights. The LEDs update rapidly, and allow you to quickly gauge the levels in an area and find any hot-spots. The LCD display offers high accuracy with a lower update speed, giving you time to take note of the readings. It also has a speaker (and audio output socket for headphones or to feed to an audio recorder), allowing you to determine, with a small amount of practice, what type of device is creating the levels that are present. The sounds made by different transmitters can change with time, so these are meant as a rough guide only. If you are subject to a number of sources of RF, the sounds may intermingle and be less easily identified. If you need a carry case, it can be ordered seperately. 2 year mfr warranty. The internal PCB antenna is at the top rear of the case. Signals are best measured with the source behind the instrument, but also quite good with the source to one or other side (particularly the left side away from the switches and volume control). It under-reads if the source is in front of the meter as the LCD display acts as an RF screen.
Acoustimeter (Cat. #A139) ..................... $469.95
Includes Enhanced RF Mode in which only RF is measured using all 15 LEDs. Gives greater range and greater resolution. Sources detected by ESI 24: cell phone towers, cordless phones, wireless LAN, Wi-Fi systems, power lines, electrical installations and appliances, baby monitors and alarms, microwave ovens, cell phones, etc.
Operates for about 10 hours on one 9V battery (included). 2 year warranty.
Nice wide frequency range and very easy to use, this hand-held RF meter offers all the best features for a low price. Great for general surveys and hunting down RF sources. Antenna is removable. Runs on 9V battery and includes an AC power supply for long sessions. Check all your wireless devices.
Wireless Radiation Meter (Cat. #A492) ........ $299.00
High Precision, Professional Quality This meter is specially designed for measuring or monitoring RF emissions from microwave ovens reliably. Calibrated specifically for the 2.45 GHz frequency range used by ovens. Measurement range 0 to 1.999 mW/cm² with 0.001 resolution. Built in audible alarm at 1 mW/cm². Best of all, the sensor is located 5 cm (2 inches) from the top of the unit so it completely takes the guesswork out of where to position the meter. Simply touch the top of the meter to the oven door/seal/window and make accurate, repeatable readings. Includes Peak Hold feature to capture the highest reading. Will also measure 2.45 GHz (±50 MHz) frequencies from other analog signal sources. Has residual sensitivity from 30 MHz to 3 GHz so other frequencies can be detected, but for reference only. Requires one 9V battery. 1 year wty.
2.45 GHz Meter for Microwave Ovens (Cat. #A109) …. $109.95
You asked for it. We have it! Want to know what parts of your cell phone are the strongest radiation emitters? Want to know how effective a cell phone shield is? Want to know which component of your RF emitters to shield? ScanProbe is the most versatile, affordable, and handy instrument for detecting, locating and measuring NEAR FIELD electric field emission.
ScanProbe will help you to reliably predict EM behavior of a product and to locate emission sources in a matter of seconds. It detects the presence of an electromagnetic field and provides audio and visual indication of relative field strength. ScanProbe can pinpoint exact sources of emission down to a single trace or component. It can even determine the direction of a conductive trace because of its 1-axis sensor. Weighing only 2 oz. and completely self-contained, powered by 2 AAA batteries and fitting into your shirt pocket, the ScanProbe offers a green/yellow/red 5-LED light bar and audible tone which changes pitch with field strength. Includes squelch feature which allows you to adjust the instrument's sensitivity. Frequency response: 5 MHz to 1 GHz, electric field.
The designer’s intention for this device is to locate sources of EMI on a circuit board or similar device. Initially, it was used to “pre-qualify” a new device before sending it to formal lab for EMI emissions testing. The device is excellent for locating the position of EMI source(s). If individual components are not emitting, then the whole device should pass test as well.
While one cannot get “calibrated” field strength measurements, one can still get a lot of “relative” information. In common situations, it can be used to scan the surface of a mobile phone or similar small electronic device to identify RF “hot spots”.
But it can also be used for comparison measurements, such as:
Want more data? ScanProbe-C operates as either a stand-alone probe or its AC voltage output connects to an oscilloscope or spectrum analyzer to become the best-performing near-field probe in the industry. ScanProbe-C has a low-noise amplifier built-in. It provides strong broadband output signal that allows you to see what you have been missing using passive probes. As an ultra-wide bandwidth, non-contact voltage and current probe for an oscilloscope, ScanProbe-C probes will reveal previously invisible transients. As an EM field probe for a multimeter, ScanProbe-C probes provide DC voltage that is a function of the field strength (BNC to banana plug adapter required). One year mfr. warranty. Made in USA. ScanProbe-C includes:
Click Here For More Information About This Product
In this book, internationally respected EMF measurement expert Hubert Trzaska discusses the specific problems of EMF measurements in the often confusing near field and the main factors limiting measurement accuracy. Book describes methods that provide accurate data to aid the development of new, improved standards. Measuring methods are examined for electric fields and magnetic fields; measurement discussions include power density and photonic EMF measurements. 232 pages, 2001
EMF Measurement in the Near Field (Cat. #A538) ….............. $79.00
To make proper RF measurements up close to a source, you need an excellent quality near field probe. This one is sensitive to magnetic fields from 1 MHz to 6 GHz and has an integrated electrostatic shield. Only 0.11” thick, the probe can be inserted into narrow seams and gaps. Useful for EMC troubleshooting, field strength measurement, determining the shielding effectiveness of near field shielding, and troubleshooting of RF circuits. Probe is passive, requiring a display instrument (spectrum analyzer, power meter, or oscilloscope) with 50-Ohm input impedance to display the power received from the probe. Probe is single-axis so it responds to fields orthogonal to the loop (i.e. parallel to the stub). 0.15 inch loop diameter for high spatial resolution, probe is 6½ inch long.
SMB male connection, 50 ohms. Includes 15 inch cable with BNC male terminal and BNC-to-SMA male adapter. 1 year warranty.
Works well with:
With RF-id SOLO you can simultaneously and instantly confirm exact frequencies and signal strength of a nearby RF transmitter. The RF-id SOLO works with both digital and analog single carrier transmissions from 50MHz to 2.5GHz (provided that the transmissions are not spread-spectrum or frequency hopping). Factory calibrated to an amazing 10Hz resolution!
Simple to use, hand-held and perfectly portable, less than 3½ x 2 inches. And not just for commercial RFID tag uses! Check wireless microphones, belt pack transmitters, assisted listening devices, wireless intercoms, cell phones, wi-fi and much more. Even hunt for covert listening devices!
- RF-id Solo confirms frequency of the signal
The RF-id SOLOTM is designed for ‘Near Field’ measurements only. The input of the RF-id SOLO has been attenuated to a minimum measurement level of -40dbm (1uW) and any signals below this level will not be measured. The RF-id SOLO’s maximum input level is +40dbm (10W).
RF-id SOLO (Cat. #A131) ................ $225.00
Want to know the frequency of RF sources? Here’s a handy unit that’s priced right. The Broadcast Frequency Counter is an excellent economical choice for 2 big reasons: it offers both a frequency counter and bargraph type field strength meter. 7 digit display gives plenty of information about the predominant incoming frequency and the very low (<5 mV) nominal input sensitivity provides stable readings even with smaller injected signals. Covers the entire frequency range of 30 MHz - 2.8 GHz for digital, on/off keying, and analog signals. Telescoping antenna included, but this 50 ohm input unit can also be attached to other antennas or line with BNC connector (maximum input is 15 dBm). Powered by 9 VDC wall plug adapter/charger (included) or 5-hour built-in NiCd battery. 1 yr mfr wty.
Note: The sensitivity for broadcast signals is low. In other words, the broadcast signal must be quite strong to register on the bargraph.
Broadcast Frequency Counter (Cat. #A119D) …..……. $269.00
With a spectrum analyzer, you get the frequency information about all of the signals present, along with the strength of each signal. When you need frequency information, this is the way to do it. Robust and rich in features with an amazing frequency range of 100 kHz to 2.9 GHz. You can select any subset of that range for detailed information (for example, you can have the meter look at 2.40-2.45 GHz only). Has internal memory and can even output data to your PC. Very portable. Built in speaker allows listening to demodulated signal. Ideal for IEEE 802.11 applications, Cellular Telephones, RF paging systems, CB radio, Indoor repeaters, Surveillance applications and more. You get a lot for the money.
Includes:
2.9 GHz Spectrum Analyzer (Cat. #417) ............... $1899.95
milliWatt = 10-3 Watt
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Click here to go to the handy Meter Selection Guide.
 lessemf@lessemf.com
Copyright 1996-2012, Less EMF Inc. |
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ScanProbe self-contained electric field probe (Cat. #A164) ….. $299.95 
by Hubert Trzaska
