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Description
CESTSEN GM-300-A NGeiger Counter Radiation Detector Portable Beta Gamma X-Ray Digital Meter Dosimeter Alarm DeviceIt is compact and portable, easy to carry, so you can put it in your bag and take it with you With a clear screen, you can read the test data clearly and conveniently, and get the results on time It is used to measure Gamma, Beta and X ray radiation, and it will sound an alarm when it exceeds the limit range, and it will alarm in time to ensure safety Widely used in environmental monitoring of nuclear power plants, accelerators, steel industry,
- It is compact and portable, easy to carry, so you can put it in your bag and take it with you
- With a clear screen, you can read the test data clearly and conveniently, and get the results on time
- It is used to measure Gamma, Beta and X-ray radiation, and it will sound an alarm when it exceeds the limit range, and it will alarm in time to ensure safety
- Widely used in environmental monitoring of nuclear power plants, accelerators, steel industry, chemical industry, isotope applications, radiation laboratories and nuclear facilities
Specifications:
- Measuring radiation types: hard β, γ, X
- Detector type: Glass Geiger tube
- Measuring range: 0.01-1000uSv/h
- Accuracy: ±20%
- Energy response: 40KeV-1.5MeV
- Measurement unit: uSv/h, mR/h, CPS, curve plotting, cumulative dose
- Alarm value function: Alarm threshold can be set
- Alarm mode: sound, vibration (independent switch)
- Accumulation time: 1-9999 minutes can be set.
- Accumulated dose: automatic accumulation, can be manually reset
- Maximum value retention: automatic retention of the maximum value
- Curve observation: the last 1 hour curve, and automatically calculate the maximum value and average value
- Measurement mode: Fast and smooth mode
- Language: Chinese and English menu
- Operating temperature: -20℃～60℃
- Operating humidity: 5%-95%RH (non-condensing)
- Battery: Type-C charging port, 2200mAh, 3.7V 18650 lithium battery
- Charging time: <6h
- Size: 120*58*28.5mm
Package included
- 1 x Nuclear Radiation Detector
- 1 x Charging Cable
- 1 x Storage Bag
- 1 x English User Manual
- Other things not included
Specifications
| Brand | CESTSEN |
| Color | As Shown |
| User Manual (Language) | English |
| Gross Weight | 0.224kg |
| Volume Weight | 0.269kg |
| Package Length | 20.000cm |
| Package Width | 12.000cm |
| Package Height | 5.000cm |
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
- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.3 ★★★★★
Based on 1986 reviews
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Product Reviews
★★★★★ 5
Great tough ball
Color: A) Small 2.5" Ball
Great ball for dogs who like to destroy most any ball. Our girl loves this. Yay!!!
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Reviewed in the United States on March 17, 2026
★★★★★ 3
Not Quite So Durable...
Color: B) Medium 3" Ball, Color: B) Medium 3" Ball
Maybe I have a SUPER aggressive chewer...he went through this ball in under a week. I originally bought the ball because of a review that stated the owner's Pitbull had the same ball for two years; not so much for my Rottweiler. He started chewing off and swallowing small crumbs from the ball within a day or two. By the end of the week, it was chunks so I had to toss it in the trash to prevent an intestinal obstruction. On the up side, my Rottweiler LOVED the ball while it lasted. However, I can't, in good conscience, give this ball a rave review based on this experience. Please take this review with a grain of salt as I have yet to find ANY toy that my boy won't DESTROY in a week or two. I hope that someone finds this informative when searching for chew toys for SUPER aggressive chewers like mine.
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Reviewed in the United States on March 16, 2026
★★★★★ 5
If you were looking for a sign to buy this, here it is
Color: A) Small 2.5" Ball
If you are looking for a ball that can stand up next to a heavy, aggressive chewer.. this is a good choice. Our Pitbull literally destroyed any and every toy that she gets with the exception of one kind of kong ball. She tore through the kong Frisbees, any kind of squeaker toy, and the wobble wag giggle ball (she usually always ends up destroying these but it takes a few weeks. Today she beat her record and had her brand new ball destroyed within the first 30 minutes of us taking it out of the box). But, this ball she has not been able to destroy. I'd like to believe that the Kong ball she has and this ball are made of the same material. Because they are the only balls she can't ruin. And it's not because of a lack of trying. We have watched her sit there and chew with a side of her mouth for an hour or more, trying to make some kind of indention or tear in it and it just never happened. She loves to chew this thing, chase this thing, sleep with this thing. I most certainly recommend this ball. If it is I'ah proof then it is most certainly, 100% a durable ball and worth every penny
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Chew King Supreme Chew Toy
Color: B) Medium 3" Ball
So far, freaking amazing. This ball is awesome. I have a 90 lb American Bulldog. Like other reviews. Lot of " indestructible balls" lasted minimum time. Not this one. She even took it to bed with her
I bought the 3 inch ball, not the 4 inch ball. The 3 inch ball works amazingly for a large Dog. Yes the 4 inch would be better. So in my opinion, either ball would be fine.
As others also said. This ball keeps a active Dog busy for hours. Love to play catch. Love frozen peanut butter in it.
One last thing. The price is amazing. I don't see needing to buy another, unless it is lost, because this is made to last. We couldn't be happier.
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Reviewed in the United States on March 10, 2026
★★★★★ 5
Malinois proof
Color: B) Medium 3" Ball
So far this has held up great. My Malinois who has destroyed nearly every ball I’ve gotten her, this one has lasted over 3 weeks without a dent, compared to some that don’t even last a day lol. Although the medium size is a little too big for her liking she still plays with it. It’s very durable and I like the middle part for engagement as well. I would recommend if you have a dog who destroys every ball possible.
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Reviewed in the United States on May 8, 2026