






📡 Stay ahead of invisible risks with the #1 EMF meter made for pros.
The TriField EMF Meter Model TF2 is a professional-grade handheld device engineered in the USA to detect magnetic, electric, and radio frequency fields—including most 5G signals—offering rapid real-time readings with a clear digital and analog display. It includes unlimited free U.S.-based expert support and a 1-year warranty, making it the go-to tool for managers and tech-savvy professionals committed to monitoring and mitigating EMF exposure in their environments.












| ASIN | B078T2R64C |
| Best Sellers Rank | #5,107 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #5 in EMF Meters |
| Brand | TriField |
| Brand Name | TriField |
| Color | Black, Grey |
| Customer Reviews | 4.6 out of 5 stars 3,523 Reviews |
| Included Components | Quick Start Info Card, Manual, 9V Battery, Soft-Shell Zipper Carry Case |
| Item Dimensions | 1.5 x 2.75 x 5.25 inches |
| Item Weight | 11 Ounces |
| Item dimensions L x W x H | 1.5 x 2.75 x 5.25 inches |
| Manufacturer | AlphaLab, Inc. |
| Maximum Operating Voltage | 9 Volts (DC) |
| Measurement Type | Electromagnetic and RF Fields |
| Min. Operating Voltage | 9 Volts (DC) |
| Minimum Operating Voltage | 9 Volts (DC) |
| Model | TF2 |
| Power Source | Battery Powered |
| Specification Met | CE |
| UPC | 646437359443 602401544215 602401544826 |
| Warranty Description | One Year Limited Warranty from the date of purchase under normal use and service. Contact AlphaLab, Inc. for details. |
C**C
Masterpiece from AlphaLab
As an EE and having worked in a building where faulty electrical wiring resulted in wildly wobbly CRT displays, I've always had an interest in perceiving or detecting these everyday but invisible fields. The Trifield 100XE has been on my Wishlist for quite some time, but never quite reached the threshold of an order. Recently I noticed this new model TF2, and the superior specifications and display readability compelled an order. The meter arrived with battery already installed. The new case design is smart, modern and high quality. With the backlight on, the display is remarkably clear and informative. The analog display (the bars) uses a logarithmic scale to convey maximum information at a glance. The digital read-out updates several times a second, frequently enough to track a changing value but still allowing the value to be read. The peak value digital read-out significantly boosts the meter usefulness by capturing short signals that otherwise would not be reflected in the analog or digital read-out. The hold time of the peak read-out is just right. While initially checking out the meter around the house, I was amazed that holding the meter in front of a loudspeaker produced a field strength display synchronous with the music playing (should not have been amazing, of course). The TF2's extended RF frequency range allowed me to check my 5 GHz WiFi access points and note the intermittent pattern of actual transmissions. While checking my microwave, I did notice a scale gap since the leakage safety limit at two inches is 5 mw/cm^2 vs. the meter's scale limit of 1000 mw/m^2. The centimeters vs. meters difference results in factor of 10,000, so the safety limit converted to the meter's scale units is 50,000 mw/m^2, far in excess of the meter's measuring range. So it's necessary to take readings at a greater distance. Using a wooden yardstick to position the meter 36 inches away from the microwave reduces the field strength to approximately 1/320 of the value at two inches. When I performed this measurement I found that my 10-year old microwave significantly exceeds the current safety limit, so I'll need to follow up on that. *** Follow up - March 11, 2018 *** It occured to me that a microwave oven is not a point source of radiation hence the inverse square law is not accurate at room-sized distances. Then I located a paper on the NIH website entitled "Exposure assessment of microwave ovens and impact on total exposure in WLANs" which includes an adhoc formula mapping the field strength vs. distance. The so-called "path loss exponent" is a parameter in this formula. It would be 2 for the perfect inverse square law. However, for distances less than one metre, and with 275ml water in the microwave oven, the adhoc value (as listed in the paper) is only 1.20. This change in exponent means that the RF value measured at 36 inches away from the microwave reduces the field strength to just 1/32 of the value at two inches. With this change of calculation my 10-year old microwave oven is just fine for RF leakage.
L**O
AWESOME MACHINE
I still have to learn how to use it. It was quite the little investment. I love it though, made in the United States runs on a single 9 V. Battery comes with a nice case and directions, works perfectly. I just need to update my knowledge base to understand it all. very happy with my purchase. I would not even consider purchasing a lesser brand or quality!!! Thank You TriField for making such a quality instrument!
R**N
Easy and ready to go batteries already included
This thing comes loaded with the batteries. All you do is pull the tab. Don’t have to read 1 million directions. Just wanted to learn about things in my house that might be admitting dangerous things from my health! I hate putting things together and reading directions this I literally pulled the tab and went to work
C**L
How to choose an EMF meter?.....it’s confusing!
Although the TriField has 2 annoying design flaws (you can’t adjust the volume and the volume and adjustable light buttons are inside the battery compartment) it’s still a safe and excellent choice. It’s easy to operate, it measures 3 of the 4 most important frequencies (hard to find in one meter!), it’s light weight, comparatively small and it’s the most affordable one with these features. Im extremely sensitive to ElectroMagnetic Frequencies/Radiation so, having a meter is such an Important first step in feeling better AND being proactive with your health. I take it everywhere with me because EMR affects my sleep, mood, energy and health. There’s a sense of comfort having the meter in hand. Customer service 10 star ⭐️ Customer SERVICE: 10 ⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️ I worked with Kristina at AlphaLab. and she was great. Foremost, she acknowledged a couple of design flaws with out getting defensive. She said AlphaLab is making note of customer feedback to make improvements for future models. This is professional and logical; why waste time defending things if everybody knows here’s a problem with them. In addition to being honest, they followed through on everything they said...and quickly. She stayed on top of things and was never out of touch more than 2 days. She took the initiative when it came to a technical issue and sent out a replacement meter before I asked. Then, even after the replacement worked perfectly, they still offered a full refund because the design inconveniences! That’s impressive and definitely uncommon. I think this shows integrity. The communication was easy and honest. Offering me the refund reassured me so much, it helped me decide I wanted to keep the meter . I wish more companies and service reps were like them....outstanding!
G**!
Gives a strong accurate reading for the value
This works great! It is small enough to fit in a purse or tool box but the quality is still strong to capture an active reading. I bought this as I was looking at several houses that were near power lines and wanted to get a reading from the backyards. This worked well and was a good value for the money. The battery life was also longer than I expected.
T**O
Wow! What an Eye Opener!
I bought this Trifield meter because it came highly recommended by several social media sources. I've wanted one for a few years and just made the decision to buy it. All, I can say is, "Wow! What an eye opener!". It's like having a new set of eyes, seeing things you couldn't see before! I measured around my work table. There was a lot of RFs coming out of laptop but you had to get really close to the screen or keyboard. At normal viewing distance, the levels were "safe" (0.20 mW/m**2) according to their documentation. Of course, you need your hands to be close to the keyboard to type but that can't be avoided. My router surprisingly had very low RFs coming out of it but I had always adjusted the router to put out 25% output power in it's settings. No need to blast my wifi to my neighbors. What really surprised me, was my table lamp was putting out massive RFs! It was well above the normal safe levels if you're close to it. I normally have it about 2 feet away from me which brings the RF level down to safe. But sometimes, I bring the lamp close my head when trying to read small writing. What's also very surprising is the amount of "unsafe" RFs coming into my bedroom window! I did similar readings from other windows and they are at "safe" levels. It's only "unsafe" from the one side of the house where my bedroom is located! As suggested in the documentation, I put up some aluminum foil on the bedroom window and that dramatically reduce the RFs coming in. I should mention with the meter, I could tell the bedroom wall was also blocking some of the RFs but the foil was more effective! That was interesting to know. The meter itself is sturdy and well built. It comes with its own case. There's a pamphlet and fast startup card as documentation. People complain about the backlighting and sound toggle buttons being in the battery compartment but it doesn't bother me at all. I have the backlighting always ON and don't use the sound. I don't have the battery popping out problem. Maybe it's because I bought it new. I've read conflicting reviews, 5 stars and 1 star, from people who say they are electrical engineers. Some say this meter is good and others say it's junk. It's hard to judge who is right. This is my first EMF meter. For my purposes, it works well. Using my "new eyes" analogy previously mentioned, I just need to detect an unseen light is there and that it's strong enough to hurt me. I don't need to know the exact details of the light. I need to know how I can weaken that light and be able to detect it's now weaker and at safe levels.
M**O
Great meter
I really like this meter. Seems to be very accurate. One thing that would be great if they would add would be some kind of an ability to look at history. RF frequencies are very difficult to kind of track down and they come and they go. One thing that this does, it tells you the peak and then it also tells you the average, which is very helpful. But when when the levels change so much it can be a little overwhelming to get a handle on it so that’s why I suggest some kind of a history where you could look at maybe a period of several minutes and take the average over that timeframe. Download it and analyze it. But other than that, the device is great. One other thing I would suggest to the company is that they add some kind of a handle or a grip to the to the meter because it’s a little slippery and I have to be careful that I don’t drop it. There’s a few other minor things but overall I think it’s a great meter.
A**N
Valuable Tool
Everyone should have this meter because it helps you find the electrical hotspots in your living area. The older Trifield was not so valuable but this newer one has audio and a digital readout, very efficient at helping assess problem areas. We had a bed with huge ELF readings right at the pillows. Bed got moved to a safer wall and we sleep well now. Had a desk where everyone got headaches and the Trifield showed it was blazing with bad energy so we moved the desk away from the hot wall. We asked our electrician why we have some walls that are so high in electromagnetic energy-- showing up to 360 volts on the electric dial-- and he does not know. He checked the outlets and they were balanced correctly but there is something wrong with our old wiring that defies conventional knowledge. If you can't afford to tear out walls and put your wiring in protective conduit, like the building biologists now recommend, then at least use this meter to help you locate your hot spots and reconfigure your furniture accordingly. Low frequency exposure over time badly drains the body's energy. Don't sleep in it above all. Get your bed to a very low electromagnetic area for a better life. And while you're at it, turn off your blasted carcinogenic Wi-Fi. That's loaded with both low frequencies and microwaves-- a ticket to aging and disease. We don't know if the microwave portion of this new meter is responsive to Wi-Fi because we learned long ago to keep a microwave-free house.
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