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Cornet ED-88TPlus EMF/RF Detector 100MHz - 8GHz |Includes Free Safe Living Technologies Hard Shell Zipper Case!|
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- Includes Free Safe Living Technologies Inc. Hard Shell Zipper Case!
- Basic Radio Frequency Detector (100 MHz - 8 GHz), Magnetic Field Detector (50 Hz - 10 kHz), Electric Field Detector(50 Hz - 50 kHz)
- This meter also provides sound signature analysis and a frequency counter (100 MHz - 2.7 GHz) for dominent Radio Frequency measurements which will help identify sources of Radio Frequency Radiation.
- 9V Alkaline Battery or Externally Powered through USB Port (5V)
- Data Logging/Recording of 1000 measured data automatically
Specifications for this item
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The Cornet ED-88TPlus is designed for a quick measurement of high frequency Radio Frequency power density and low frequency Electric and Magnetic Fields. The ED-88TPlus is a broadband measuring instrument with a frequency range from 100 MHz to 8 GHz. In addition, it also measures low frequency Magnetic Fields ranging from 50Hz to 10kHz and low frequency Electric Fields ranging from 50 Hz to 50 kHz. This meter will give a home or business owner a basic understanding of RF and EMF exposure in their environment and help to identify the primary sources of electro-pollution in an environment. Note: If you are comparing your measurements to the Institute for Building Biology Guidelines and wish to achieve levels in the no concern range, a more sensitive meter is required. Please see our RF Meter or EMF Meter page or consult with one of our technical experts. Features: Peak RF power density measurement : 0.5 uW/m2 to 1.8 W/m2 Max, average and hold function LCD moving graphic Histogram to display signal power level Ultra fast color LED 8 segment level display for easy signal level indication Frequency counter for on air digital RF signals (100 MHz to 2.7 GHz) Battery operated (9V DC) or Externally Powered through USB Port (5V) Small, compact handheld design, 69mm X 130mm Applications: RF field strength/power level measurement Cellular phone base station radiation power Density safety measurement Telecommunications (CW,TDMA,GSM,DECT) RF Transmitters power output measurement Wireless LAN (Wi-Fi) detection, installations Spy camera, wireless bug finder Cellular/cordless phone radiation safety level Microwave oven leakage detection AC power line, Transformer radiation Personal living environment EMF safety
- Is Discontinued By Manufacturer : No
- Package Dimensions : 8 x 5 x 3 inches; 7.2 Ounces
- Batteries : 1 9V batteries required. (included)
- Date First Available : September 2, 2016
- Manufacturer : CORNET Microsystems
- ASIN : B01LFXEQNW
Best Sellers Rank:
#148,645 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement)
- #380 in Multi Testers
- Customer Reviews:
Top reviews from the United States
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When placed in an cage that is shielded from all RF, the 88Tplus correctly reads less than .001 mW/m² and it is accurate at frequencies around 2 GHz when the RF level is increased above zero.. There is a peak RF capture feature which displays the height of quick RF pulses (typically from cell towers, wireless devices, etc.). However, there is a problem with the way this peak capture is implemented-- the main displayed number shows each pulse height for 1/2 second before reverting to the actual RF field strength (a lower number) and the pulse height is also "permanently" shown a secondary number underneath the main number. If the pulses of digital information occur faster than 2 per second (typical of cell towers and routers), the main and secondary numbers both show the peak without ever getting a chance to show what the actual RF level is. Even the row of LEDs and the bar graph both remain elevated to the pulse height and there is no indication of what the average is, which is typically 1/10 to 1/100 of the pulse height. There is also no indication of whether the RF that is being measured is pulsing or constant. If you are only interested in the pulse heights (and not the average value) this meter works well on RF.
The E-field (AC electric field) measures the E field at 60Hz (North American powerline frequency) fairly accurately. At zero E field, the meter reads 2 V/m (volts per meter) instead of 0 V/m. This error is tolerable because the resolution is 1 V/m. (Oddly, the manual claims that the resolution is a more crude 10 V/m.) The meter is not equally sensitive at frequencies from 50 Hz to 50KHz, as the manual implies. Instead, at 3000 Hz, the meter reads ~1500% too high, dropping back to correct sensitivity at ~800 KHz. The E field is single-axis, in the same direction as the long dimension of the meter. A single axis sensor works well for E field, because the field is created by charged particles, or "monopoles" (electrons and protons). Simply point the top face of the meter outward in the direction you want to measure the E field, and the reading is generally correct.
If an E field source is due north of you, the field direction at your location will generally be along a north-south line. That is why you point an E field meter toward the source (north in this example). However, the correct measurement of magnetic field is more tricky, because magnetic monopoles don't exist. If a magnetic field source is due north, the field at your location may be north-south or east-west or up-down or even a diagonal direction. Therefore, if you point a single-axis magnetic meter toward a magnetic source, the meter may just read zero even if the field is strong. In order to measure this field accurately, you would need to point the meter in various directions until you see a maximum. This takes some time. The ED88Tplus is only single-axis in magnetic. It also reads 0.6 milligauss (0.06 uT) in a true zero field, and is therefore not usable below 0.6 mG. It also has a slow response time (~1 second) and the mG readings are only accurate at ~55 Hz (between 50 Hz and 60 Hz). At higher frequencies, it reads up to about 1000% high, and the 10mG overrange limit in the sensitive range is annoying.
Overall, the meter is good for measuring the higher-frequency RF, especially the peak height of pulsed signals. The electric field mode works reasonably well and is accurate at 60 Hz. The magnetic field mode, however, has multiple problems. The screen has good visibility in daylight and a backlight can be turned on for indoors. However, the screen is small and is in the form of square pixels. The numerals 0,8, and 5 run together and are difficult to read if next to each other. The manual is incorrect about certain specs and doesn't explain everything about the displayed parameters. Also, it has several grammatical errors and strange phrases. I would guess the writer's primary language is not English, which leads me to question the "Made in USA" printed on the back of the meter.
Full disclosure: I am affiliated with a US company that manufactures various lab instruments, including electromagnetic measurement equipment.
I have found Cornet tech support / email response to be stellar, with replies coming back the same day. Such support is not often found with consumer level electronics.
What I particularly value with this meter are the three modes (RF, magnetic, and electric), the peak hold feature, and the ability to also capture the RF emitting frequency that produced the peak. This is valuable when dealing with several competing signal sources. This meter also displays signal strength in multiple helpful ways: colored LED bar graph, digital (current and peak), sound output, and HISTOGRAM, which is very useful for seeing intensity patterns over time.
A built-in data logging feature can make recordings over a period of time. And then the data can be uploaded to a spreadsheet over the side USB port. This feature is described in a downloadable document on the Cornet website. Such recordings are invaluable for RF signals that are only infrequently transmitting, such as utility "smart meters".
PHYSICS NOTE: Several users posting reviews here are confused by what is called the inverse square law for electromagnetic radiation. This dictates that field strength falls off, inversely proportional to the distance from the source, squared. So yes, the measured values do fall off rapidly as you move away from the source. This no deficiency of the meter, it is just plain physics.
1. The battery was installed - meaning it probably was previously owned.
2. Someone who can't read put it together or it was taken apart and put back together wrong (see the photo).
It's going back.