Radiofrequency Meters

ELECTROSMOG METER

Breakthrough in low cost RF measurement. Covers 50 MHz to 3.5 GHz and great for digital or 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 99 point 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, µW/cm², or W/m². Updates 2.5 times per second. Choose to display instantaneous value, maximum value, or average. ±2.4dB accuracy or better. Uses 9V battery. 1 year warranty.
Electrosmog Meter (Cat. #A492) ........... $199.00

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8 GHZ RF METER

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 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 (average period adjustable from 4 second to 15 minute intervals). ±1dB accuracy or better. Uses 9V battery. 1 year factory warranty.
8 GHz RF Meter (Cat. #A489) ……… $499.00

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IMPROVED CELL PHONE DETECTOR

The perfect RF meter when you want to be able to adjust the sensitivity to eliminate background RF noise and false positive readings. Frequency range 50MHz ~ 6.0GHz covering all types of wireless network, camera, hidden microphone and cellular phones. Great for locating hidden surveillance bugs and other RF sources. Large LED light bar gives indication of radiation strength. LED numeral indicates level of sensitivity setting (8 is the most sensitive). Has a silent vibration mode, beeping alarm mode, and earphone for silent/covert detections.

Includes Built-in rechargeable battery pack with low battery indication, and charger.

Improved Cell Phone Detector (Cat. #A455) ……… $149.95

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BASIC RF METER

This meter represents both a price and technology breakthrough! Simple hand held meter is so easy to use: One button, just to turn it on/off! 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:

• Signal power level in dBm
• Signal power density in μW/m² and mW/m² (automatic)
  - continuous from 1.6 μW/m² to 580 mW/m²
• Horizontal bar “power level display” with 12 5dBm segments
• Moving bargraph showing signal changes over the last 32 readings
• 8 segment LED bar (green/yellow/red) with corresponding power indication
• Backlit for first 10 seconds of display

Truly unique tool for personal RF exposure detection and level measurement. Use it to check GSM, TDMA, CDMA, PCS, Wi-Fi plus AM/FM and TV signals and much more. Now check out the price! CE.

Basic RF Meter (Cat. #A437) .......... $89.95

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8 GHZ BASIC RF METER

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. Just point and take readings. 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). Colored LED bargraph, numerical readout LCD display, and moving bargraph (histogram) showing recent history of signal strength levels. Covers 1 MHz to 8 GHz, with some residual sensitivity up to 10 GHz. Measures continuous wave signals (microwave oven, AM/FM for example) and pulsed digital signals (Wi-Fi, WiMAX, DECT, etc). Detachable external whip antenna which is useful from 600 MHz-5.8 GHz is included (see graph below). SMA connector can be connected directly to line or other antennas. Uses one 9V battery.

Look at all the information on the LCD screen:

• Signal power level in dBm
• Signal power density in μW/m² and mW/m² (automatic)
  - continuous from 1.6 μW/m² to 580 mW/m²
• Horizontal bar “power level display” with 12 5dBm segments
• Moving bargraph showing signal changes over the last 32 readings
• 8 segment LED bar (green/yellow/red) with corresponding power indication
• Backlit for first 10 seconds of display

8 Intensity Level Increments On the LED bar display -5 dBm = 180 mW/m²   -10 dBm = 58 mW/m²   -15 dBm = 18 mW/m²   -20 dBm = 5.8 mW/m²   -25 dBm = 1.8 mW/m²   -30 dBm = 0.58 mW/m²   -35 dBm = 0.18 mW/m²   -40 dBm = 0.06 mW/m²

8 GHz Basic RF Meter (Cat. #A436) …...... $179.95

Log-Antenna Accessory
(with SMA Connection)

Connect this triangular shaped antenna to the 8 GHz Basic RF Meter body in place of the standard whip antenna and get 1.8 GHz-10 GHz capability! Simple SMA screw on connection. Directional, so it helps determine the direction of the source of the signals. Great low cost way to measure higher frequencies. Can be used with other meters with SMA input. Meter sold separately.

Log-Antenna Accessory (Cat. #A436-A) …… $74.95

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HIGH FREQUENCY METER

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)
- accuracy ±6 dB
- true logarithmic - periodic antenna, 800 MHz – 2.5 GHz, single polarized, included
- standard 9V battery included

Easily detects cell phone towers, cordless phones even microwave oven leaks. Instructions in German and English. 2 year Warranty. Model HF35C.

High Frequency Meter (Cat. #A481) …. $499.99

EXTENDED RANGE HIGH FREQUENCY METER

Just like the High Frequency Meter above but examines 27 MHz - 3.3 GHz, with residual sensitivity to 6 GHz. Includes both direction and omni-directional antennas. Model HFE35C.

Extended Range High Frequency Meter (Cat. #A483) …. $956.00

FREQUENCY FILTER ACCESSORY

This accessory for the High Frequency Meters is basically an adjustable narrow notch filter which allows a user to examine one very narrow frequency range at a time by a factor of 100, permitting all other frequencies. Useful from 700 MHz – 3 GHz.

Frequency Filter Accessory (Cat. #A484) …. $369.75

20 dB ATTENUATOR

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) …… $99.95

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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 sources such as wi-fi, cordless phone, wireless keyboards, baby monitors, etc. 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

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ScanProbe

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. 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: 2 MHz to 2 GHz, electric field.

Want more data? ScanProbe-C operates as either a stand-alone probe or connects to a 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:

• 1 Electric field probe. Frequency response: 2 MHz to 2 GHz
• 1 Magnetic field probe. Frequency response: 1 MHz to 1 GHz
• Six-foot SMB/BNC cable
• Heavy duty plastic case, user's guide, and batteries

ScanProbe self-contained electric field probe (Cat. #A164) ….. $199.95
ScanProbe-C (Cat. #A164-C) ………….....…………….……….. $695.00

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ELECTROMAGNETIC FIELD MEASUREMENT IN THE NEAR FIELD

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

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Digital Hotspotter^®

The Digital Hotspotter provides information on signal availability and strength as well as essential network information, including ID, security status and channel for most 802.11 b/g Wi-Fi networks. Use it to determine if you are exposed to Wi-Fi radiation, the strength and direction of the source(s), and the number of channels.

Travelers, students and other roaming Wi-Fi users can use the Hotspotter to find available networks. Use the Hotspotter to determine where your home or office coverage extends, and where the optimal locations for use of the network are. Security The Hotspotter can be used to determine whether your home or office network is leaky. The device can detect whether your access point’s signal extends beyond your walls, and whether it is secured. The Hotspotter can also help you detect rogue access points.

The Hotspotter displays an image of one to four vertical bars, indicating the relative strength of the signals detected by the Hotspotter. By scanning repeatedly, you may be able to determine whether you are moving closer to or farther from a network access point by watching the increase or decrease in the relative signal strength.

The Hotspotter scans 13 channels. While only 11 channels are used in the US, 13 channels are used for Wi-Fi in Europe. Channel information can be useful in detecting potential reasons for interference. Most access points are set to channel 1, 6 or 11 by default. If you see more than one network on the same channel, it is likely that you may experience problems with interference. In fact, Wi-Fi channels overlap on adjacent channels, and may cause interference on adjacent channels. You may wish to use the Hotspotter when configuring your home or office network to determine what channels are least likely to experience interference.

LCD screen displays information about multiple networks:

• Network ID (SSID)
• Signal strength
• Encryption status (WEP and WPA)
• Provides Channel Information
• Signal Availability (802.11b and 802.11g networks)

Product Specifications:

• Dimensions: 2.52 L x 2.17 W x 1.06 H
• Weight: 2.5 oz.
• Compliance: FCC, CE Standards
• Power: 2 Starter AAA Batteries Included

The device does not detect Bluetooth, 802.11a or 802.11n. Some 802.11b and g networks are not detected by the device.

Digital Hotspotter® (Cat. #A453) …… $59.95

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SafeOne™

An effective and economical way to monitor the strength of radiofrequency radiation from mobile phone towers, microwave ovens, wi-fi, heat sealers, RF welders, radio and television installations, high frequency welders, and other common RF sources between 10 and 10,000 MHz. Covers the range of 0.1 – 10 mW/cm². Satisfies the requirement for essential RF safety equipment in complying with FCC, OSHA, and other safe workplace requirements.

Audio and clear visual warnings indicate when the IEEE and ICNIRP limits are exceeded. Also gives an approximate value of RF strength to help you determine how long you can stay in the radiation field. Extremely convenient to wear and easy to use, the size of a cell phone and weighs under 3 ounces!

Can be worn on the belt with the supplied belt clip. Position the unit clear of metallic objects, such as a tool pouch. It should not be used with a conductive RF protective suit.

To use SafeOne™, simply insert two AAA alkaline batteries, perform a functional test, and set desired alarm parameters. A self-test function happens whenever the monitor is turned on. No need to worry about the battery life - the SafeOne™’s batteries can last over 500 days!

Two alarm modes: “General Public” (default) or “Occupational” levels (as defined by the standards of the IEEE and ICNIRP) for for your convenience. The chosen level is indicated by a lighted bar on the display bargraph.

Press the SELECT button, to choose from 3 different RF safety alarm functions:
- Normal (one beep): both audible and visual warning when alarm limit is exceeded.
- Timer (two beeps): visual warning when alarm limit is exceeded. After approximately 5 minutes SafeOne™ will beep and return to normal position.
- Silent (three beeps): only gives visual warning when alarm limit is exceeded.

Just take common sense measures to keep it clean, dry, and secure. Re-calibration services are available.

Technical Data
Frequency range:	10 –10,000 MHz
Frequency profile:	ICNIRP - IEEE
Range:	0.1 – 10 mW/cm²
Absolute accuracy:	400- 2500 MHz ± 6 dB
Audio alarm intensity:	80 dBa
Power supply:	3 Volt (2 x AAA)
Battery life, w/o audio alarm:	500+ days
Dimensions:	2.3 x 4.2 x 0.9 inch
Weight with batteries:	3oz (88 grams)
Operating temperature:	10 to 104°F, -10 to +40°C

SafeOne™ (Cat. #A136) ................... $595.00

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NARDALERT XT

The Nardalert XT pager-sized personal monitor provides wearable visual and audible alarms to warn against exposure to RF and microwave radiation. Fail- safe circuit design effectively covers the entire RF spectrum (100 kHz to 100 GHz) with all types of signal formats. The Nardalert XT has two very distinct loud audible alarms and a vibrator alarm The color coded LEDs are extremely bright and can be seen while wearing the monitor. Data logger can log over 30,000 data points and be reviewed whenever there is a need. Small and light weight with long 1500 hr battery life (1 AA) for every day use by both professionals and amateur users. Units come with instructions, pocket clip, belt clip and plastic storage box. 2 yr warranty. Model 8860.

Alarm 1 default setting: 50% of standard
Alarm 1 default setting: 200% of standard
LED Indicators: 10%, 20%, 50%, 100% and 200% of standard

Nardalert XT (Cat. #441) .................. $1999.95

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SPECTRAN (Model HF-4060)

See RF field strength and frequency information. In its most basic mode, just turn it on and take readings.

Gives frequency and field strength data. Or, set the frequency range, set the filter range (squelch to remove low level background) and use Spectran’s “auto marker function” to identify the exact strength and frequency of the 3 strongest signals in the range.

Large high resolution 50 segment bargraph gives fast trend indication. 4 digit display of frequency and field strength with PEAK hold.

• Covers expanded frequency range of 100 MHz – 6 GHz with 100 kHz resolution
• Range: 10pW/m² - 10W/m²
• Basic instrument accuracy: ±3dB
• Indicates in W/cm², W/m², V/m, A/m, dBm, dBµV
• Multi-function rotary switch for quick one handed operation
• USB 2.0 computer interface and free downloadable Windows software updates

Bonus: this meter will even give readout values as percent of a limit value to make comparison against international exposure standards very easy.

Included:
Meter, detachable directional antenna, detachable mini staff antenna, detachable pistol grasp tripod, 1 meter long SMA cable, specially designed rechargeable 1300mAh battery (no “memory effect”) for long work time and re-charger, sturdy padded aluminum carry case and comprehensive handbook. 10 year mfr. Warranty. Look at this price!

Spectran HF-4060 (Cat. #A134) ........ $1770.00

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INVISIBLE WAVES

When you need to know what frequencies are present, and which are absent, you need a spectrum analyzer. When you need to monitor 9KHz - 3.5GHz, you need this spectrum analyzer. Just load the included software into your PC or laptop, and begin monitoring, datalogging, and understanding your RF environment.

The perfect tool for:
Site Surveys • Product Selections • Frequency Selections • Shielding Performance Interference Abatement • Dead Spot Identification • Frequency Coordination • Antenna placement

- Frequency Range: 9KHz - 3.5GHz
- Level Range (typical): -130dbm to 0dbm
- Filter Bandwidth: 1KHz - 50MHz
- 10PPM Frequency Stability
- Accuracy (typical): +/- 3dB
- Antenna Interface: 50 Ohm SMA
- Receiver - DDS Based, Superheterodyne
- Battery: Full Charge 4-7 hours
- 10PPM Frequency Stability
- Requires PC running Windows 2000, XP, or Vista

Unused Frequency Finder Mode
The included “White Space Finder” is an Open Space, Frequency Finder and Calculator. Use it to find interference-free channels. Simply define the open space requ ired (bandwidth), the spacing between adjacent channels (band-guard), and a minimum threshold level. The open spaces are then graphically displayed in a priority order of largest open RF spectrum to smallest. It's perfect for locating open frequency space in crowded RF environments, or to help insure proper spacing for frequency coordination.

Monitor Specific Frequencies Mode
Allows up to 10 frequencies to be custom labeled and viewed in a barograph, relative level format. The user can assign a specific threshold level in dbm, and anytime the signal falls below the threshold, the barograph level falls and changes from the color green to red. It's perfect for monitoring important transmitters such as a lead vocalist's, or to keep tabs on wireless guitars and remote control devices

Included:

• Electronics Hardware/ Receiver Package
• Built-in Rechargeable Battery Pack
• AC Adaptor / Charger
• 2 omni-directional antennas
• USB to PC Connection Cable
• Software CD
• High-impact Carrying Case

Invisible Waves (Cat. #A135) ................ $1895.00

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BROADCAST FREQUENCY COUNTER

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

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