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Ships within 48 hours · Estimated delivery Sep 10 - Sep 15
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Description
R&D INSTRUMEMTS RD630 3 In 1 Electric Field Magnetic Field RF Detector Electromagnetic Radiation Tester, RD6301. Radio frequency detection: Wireless, Bluetooth, radio equipment, 5G signals and radio frequency 2. Three types of alarm prompts: sound, light and display. The large screen is clearer and more understandable 3. Built in high precision electromagnetic radiation sensor. The micro control chip processor can quickly and accurately measure the electromagnetic radiation value 4. Wear resistant felt, protecting the machine 5. Anti slip design, not easy to
1. Radio frequency detection: Wireless, Bluetooth, radio equipment, 5G signals and radio frequency
2. Three types of alarm prompts: sound, light and display. The large screen is clearer and more understandable
3. Built-in high-precision electromagnetic radiation sensor. The micro-control chip processor can quickly and accurately measure the electromagnetic radiation value
4. Wear-resistant felt, protecting the machine
5. Anti-slip design, not easy to fall off
6. Comfortable touch, soft rubber buttons
Parameters:
1. Sensitivity: EF (Electric Field): 1V/m; MF (Magnetic Field): 0.1mG or 0.01u; TRF (Radio Frequency): 0.01mW/square meter
2. Measurement range: EF: 1 - 1999V/m; MF: 0.1 - 999.9mG or 0.01 - 99.99uT; RF: 0.01 - 19.99mW/square meter
3. Measurement accuracy: ±5%
4. Measurement bandwidth: 50Hz - 3500MHz
5. Automatic shutdown: default 15 minutes, can be disabled
6. Operating temperature and humidity: -10 - +60℃; humidity: Less than 80%RH
7. Power supply method: 1 battery of 9V (not included)
8. Size: about 14.7 x 6.85 x 2.8cm
9. Weight: about 132g
Specification:
| Package Weight |
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 3
Squeaky balls for big dogs
Color: Squeaky-4 Pack, Size: Medium
I wanted a cheaper alternative to the Kong squeaky balls but unless you have big dogs that have powerful jaws, it is challenging for small and some medium dogs to squeak these. My dogs lost interest when they realized they couldn't squeak them. I will have to pass them off to a friend who has large dogs.
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Moms dog here…reviewing cos it’s mine!
Color: Squeaky-4 Pack, Size: Medium
Moms corgo here. Reviewing the squeaky balls mom bought.
First off..they’re green. I don’t know what green exactly is cos I’m colorblind, so whatever that is it is and because it’s mine, I like it.
Secondly, they’re fluffy. It’s an annoying texture that I like to peel off, but these are tough and peeling them is a struggle.
Thirdly, the bounce. I don’t know where these balls think they’re going to think my mom is so repulsive, but they bounce just high enough to catch them and bring the escapee back to mom when I feel like they need to go back to her, otherwise, I take them to a safe spot to release into the wild…but mom always captures them and they always escape. I tell you, it’s a vicious cycle.
Fifthly…the squeak!! That rotten vulgar noise!! I want to unalive those things so bad!! Balls in the past were no match for my jaws of death, but these?? These are resilient and have quite the will to live! I have yet to destroy one!!
To wrap this up…Corgo approves and declares them mine. I like them. I think your doggo will like them too. But you can’t have mine..cos they’re mine.
*drops the corgo mic*
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Reviewed in the United States on May 14, 2024
★★★★★ 5
Not for aggressive chewers
Color: Non Squeaky-12 Pack, Size: Medium
You get a good amount of balls for the price. My dogs loved them but unfortunately they did not last long. That is not the company’s fault, my dogs are very toy aggressive and destroy almost every toy.
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Reviewed in the United States on December 31, 2025
★★★★★ 5
Our German Sheppard loves these
Size: Medium
These cost a bit more than tennis balls, but they are so much nicer and longer lasting. For starters, they stay cleaner than tennis balls because they’re smooth rubber. Dirt won’t build up on them and if anything does stick, like grass or soil, it falls off once the dog slobber dries. They’re also thick, so they don’t fall apart or blow out like a normal tennis ball does in our dog’s jaws after 30 seconds. Our GS chomps on these like crazy and the only damage they’ve suffered is a crack that developed from the edge of the hole, but the crack is growing very slowly and none of these balls have totally failed yet. The balls do whistle when thrown ant high speed and that may help a dog track and locate it, but I’m not sure. Our neighbors hear the whistling too so it’s far from silent. Lastly the orange ball is easy to locate out in our yard, but the dark blue practically disappears.
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Reviewed in the United States on April 6, 2025
★★★★★ 5
Great for smaller dogs
Size: Small
These two balls are perfect for the smaller mouthed dog that loves to play fetch.
These balls are not only super durable (lots of teeth biting), but float in the baby pool we use for our miniature dachshunds.
The value here is much better than you’d find anywhere else. The noise, if bitten hard enough, was “low” at best. Easy to spot/find if overthrown. Will definitely buy again once these are in bad repair; so far, so good-love these for my fur babies!
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Reviewed in the United States on October 8, 2024