













📡 Stay ahead of invisible risks—detect, protect, and own your space!
This handheld 3-in-1 EMF Detector accurately measures AC magnetic, AC electric, and microwave radiation with a tri-color LCD and audible alerts. Compact and easy to use, it’s perfect for quick safety checks at home or work, featuring customizable settings like mute and auto power-off to optimize battery life and user experience.










| ASIN | B0CPF7GC3L |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Best Sellers Rank | #4,204 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in EMF Meters |
| Date First Available | December 4, 2023 |
| Item Weight | 8.8 ounces |
| Item model number | RD630 |
| Manufacturer | SHENZHEN REDDRAGON INSTRUMENTS CO.,LTD |
| Product Dimensions | 4.72 x 1.97 x 1.5 inches |
C**L
How far away should we stand from a microwave or sleep from charging electronics?
EASY to use, it automatically "BEEPS" when walking or driving by high EMF areas. Turn it on, place it in your purse or belt and go explore around your property or home! This is a really helpful tool to alert you to harmful locations of equipment nearby which might need attention for relocating away from you and your pets! Came with batteries! Works immediately out of box and has EXCELLENT "how to" manual for beginners! Great quality too. Shipment was very fast as well.
A**I
Worth it.
I love this meter and it works great, but ignorance is bliss right? Depending on how close you are to certain “towers” this thing will make you mad, not because it doesn’t work, but because it does work and it alerts you to living or traveling through an area that has ridiculously high levels of RF. FYI I made a video on social media using this meter and it was removed. I wonder why? Good meter, good price.
C**R
Works fine, as advertised.
This has Been a useful tool for measuring radiation of plugs and sockets, and other devices around the house, and I have been able to use it to determine whether the Dot minimizers actually even work. So I've done Before & After and found this tool very useful. Anda reasonable price!
M**E
Handy and Easy-to-Use EMF Detector
I really like this EMF detector! It’s small, easy to handle, and gives quick readings. I use it around the house and feel more aware of where devices emit fields. Perfect for anyone who just wants a simple way to check their space.
S**N
Works exactly as described
UPDATE ~~~~~~~ I've been "playing" with this some more. Couple of things I discovered. One time I powered it up and the backlight was non-functioning. I wondered what I had done???. Turns out the Power/Mute button does 3 things. short press turns the unit ON or OFF. 1st Long press Mutes 2nd Long press turns off backlight completely (Display still functions/visible) 3rd Long press unmutes 4th Long press turns on backlight (green/orange/red now effective) The Hold/Max switch (this is documented but not very clear) 1st Short press turns on HOLD function and holds the current settings 2nd Short press turns off HOLD function, numbers return to normal scanning 1st Long press turns on MAX function, instead of numbers fluctuating up and down the MAX simply holds the highest value reached (once it stops changing, that's the max value) 2nd Long press turns off the MAX function Now a quirk. Safe (green), Alert (orange), Avoid (red). I started looking around at other devices and checking online for what are recommended "safe" values and that produced a number of different sites showing various ranges. I then discovered that the ranges are also variant depending which country you are in!!! Amazon has other EMF detectors which trigger Alerts at lower ranges than this unit. Some have ranges starting at .001 and even .0001 and max values way beyond the Alert triggering levels. Indeed this unit has max ranges way above it's triggering "Alert" values. Not sure where I could test this to reach a MAX value and not sure I want to be that close or around such devices anyway!!! So I guess the point I'm making is that for me, the range values are not so important because who knows what really is "bad" vs "good" numbers. If this unit beeps fast and turns red, I simply don't care what the number states on the display.. Clearly that's a problem. Even if it slow beeps and is orange, I'm still concerned. What I'm really using this monitor for is identifying how close do you have to be to items that start the counters increasing and identifying places where the device registers zero or close to when green. Basically, I can easily get the unit to register Alert by having the monitor touching certain devices (including the microwave). What I'm learning is don't let kids put there face up to things without first checking what is a safe distance for them. I don't intend to sleep on my microwave but I am also surprised how much energy the darn thing radiates when it's on. I'm also concerned about my mobile phone and how much energy that thing is putting out... So I do not use the phone next to my ear, nor do I use wireless ear buds... I have gone with wired because of the radiated numbers I get. I still cannot validate the accuracy of the unit. I have 2 other older devices and all 3 seem to give slightly different numbers. However, do I care which one beeps at what number? Nope... I simply know that all of them go crazy when next to Routers, TVs, LED bulbs, Microwaves, etc etc, and all stop when I move inches away from the device. I've no intent on sleeping or resting my head on any of those devices whether they are powered up or not!!! What I still like about this unit is the HOLD, MAX, triple onscreen display, the audible alerts and the visual color alert. The ability to turn off some of those features is nice but not essential in my usage. I still recommend this. ORIGINAL REVIEW ~~~~~~~~~~~~~~ I particularly like that depending on which tester exceeds various limits, the display will change from Green to Orange to Red. Readings seem valid but I have no way of verifying if the displayed readings are accurate or not. None the less, it does give readings that help identify concerns. Like for examples, safe distance from a Microwave, just how much RF energy is in the room with all the 5GHz RF in the house!!! I also tried it with my Samsung Phone and as I've always known for years, stick that mobile phone next to your ear and you WILL get a dose of RF.. That's why I only use the speakerphone or a I'll plug in a cabled headset!!! So it's a fun toy if nothing else which regardless of the accuracy of the readings (which I'm not questioning), does highlight things in the house that you should be aware of that give out energy that might not be good for you.
F**T
Quiet and reliable
This product is great – the best feature is that you can disable the piezoelectric speaker (annoying beeping) by holding the power/mute button for 1-2 seconds. Holding it again actually turns the backlit screen off, and then doing it a 3rd and 4th time will restore the sound and power respectively. This persists even after turning the device off, so you can have a quiet device without excessive beeps if you so desire. What I received was the RD630C (presumably C=Color) rather than the RD630 as the Amazon-listed model refers to, though the current pictures do accurately show the model number of the product that you get. This model uses a 9V battery similar to the RD630W, not the USB-C (?) rechargable feature you appear to get with the RD637. This isn't mentioned explicitly in the description of the models, which currently only says "1 Lithium Polymer batteries required. (included)". The RD630W description does mention in its description that you get a 9V battery with it... you also get one inside the box with the RD630C in case there was any confusion. Overall, the backlit color changing is neat and makes this intuitive to use. It's excellent that you can disable the speaker and that it saves that setting after you turn off the device ... just make sure you press it instead of holding it when you turn it off, or it will just be disabling the backlight by changing modes and still be On and you may not realize it in low-light conditions.
A**A
It actually works, and detects what it's suppose to. Now I'm mindful of harmful devices placed close to my bed.
C**N
el panel es claro , avisa con pitidos
D**H
Worked perfectly for the measurements I needed to take. I was most surprised about the EMF field around extension plugs. The magnetic field around them is incredibly powerful so be mindful if working near one like I do. It's easy enough to use and decent quality so value for money in my opinion compared to some of the other options on the market and silly money.
C**.
Détecte bien les différentes pollutions EMF, quand à la précision de l'appareil je n'ai pas de moyen de comparer, en tout cas il faut utiliser une "pince isolante" pour tenir l'appareil sinon la mesure est faussée par le contact du corps humain et ça fait une grosse différence.
Z**O
Probado para mediciones de EMF en zona habitacional para identificar radiacion EMF emitida en torres de alta tension cercanas en rango de los 100mts, Funciona excelente, altamente recomendado, misma fiabilidad que otros equipos mas costosos.
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