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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
4.4 ★★★★★
Based on 2033 reviews
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Product Reviews
★★★★★ 5
Real good quality. Better price then Menards. Missing screws.
Size: 5.5 INCH
Real good quality, very sturdy, and it came with screws and drywall anchors. I would recommend. Only thing is it came with twice the drywall anchors that I needed and missing 2 screws. Not a big deal for me, but someone without screws laying around would have to buy a whole box for 2 screws. Other then that, it’s a good product and would buy again.
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Reviewed in the United States on October 23, 2023
★★★★★ 5
Amazing quality brackets
Size: 7.25 INCH, Size: 7.25 INCH
When I received my order I was very impressed with how the brackets were packaged. Once opened up, the steel brackets are amazing quality, and comes with all the screws needed. The only downsize is the screws are lower quality so by the time I got them in they were stripping where the screw driver sits. Same with the drywall attachments. I only used two dry wall attachments per shelf because I didn’t want to ruin my walls with giant holes. It seems to hold adequate weight. I put the regular screws in the bottom holes and through the wood to secure shelf from sliding. Overall I am very pleased. I will be ordering again when I do my bathroom shelves.
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Reviewed in the United States on July 8, 2019
★★★★★ 5
Very versatile and easy to install too!
Size: 5.5 INCH
Very sturdy ! Worked perfect for our outdoor location and is holding the trellis to our home... WONDERFUL Support !
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Reviewed in the United States on April 7, 2025
★★★★★ 5
Great Quality
Size: 9.25 INCH
Why did you pick this product vs others?:
Looked sturdy and was a great price for heavy duty brackets
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Reviewed in the United States on June 20, 2025
★★★★★ 5
Ignore the “Frequently returned item” message!
Color: Walnut Color, Color: Walnut Color
I usually don’t write reviews but I thought I should for these shelves. I was a little skeptical on these based on the “Frequently returned item” message but I decided to give them a shot and I’m glad I did! These shelves are solid and well made, beautiful color, fit perfectly in the corner of my wall, and are easy to hang. I’m not sure why they are frequently returned but I will be ordering another set for my wife’s side of the room.
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Reviewed in the United States on March 16, 2026