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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
4.7 ★★★★★
Based on 1626 reviews
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Product Reviews
★★★★★ 5
Best sunscreen ever
Best sunscreen ever, never get burned when I use it
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Reviewed in the United States on April 24, 2026
★★★★★ 5
Terrific sunscreen!
I found out about the Sun screen from a youtuber who does Amazon favorites videos. At first, I thought she was nuts for advertising a $32 sun screen especially for the size it is. I really wanted an everyday sun screen that wasn't thick and goopy. I don't mind of I'm going to the beach or pool but a lot of them are a little much for every day use. Im trying to be better at protecting my face.. When I came across this I decided to splurge and try it. I hate to admit it but I'm so glad I did! It has a slight scent but nothing over powering at all. Its truly a weightless sunscreen that is perfect! I put it on before work and it doesn't make me look greasy or anything. You could probably use it under make up of you really wanted to, I just haven't tried it yet. My only complaint is the price but I haven't tried anything as good ad this! I've seen Ulta have sales on it every once in a while.
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Reviewed in the United States on August 22, 2020
★★★★★ 5
Soothing, refreshing, and effective for most uses
I found this sunscreen back when it was still reasonable priced ($10 for a bottle this size) and am now completely 100% addicted as the price continues to rise. Sigh. I don't use this anywhere but my face and neck.
Putting this on my face makes me go "ahhhhh". I break out easily, burn easily, and haaaate the feeling of sunscreen. Previously, I used Neutrogena 45 or 55+ ultra-sheer dry touch, and I still use that sometimes when I expect more intense exposure, but the Coola cucumber just feels so much better.
I don't actually know if I would burn in cases where I still use my other 45+ sunscreen since I haven't taken the chance. I use Coola for 30-45 minute pool sessions, and hikes between 30-90 minutes. I haven't trusted it for things like skiing, 3 hour hikes, or boating where you get intense sun and a lot of moisture exposure.
Buy if you want a lightweight, refreshing face sunscreen for walks in the sun, lounging poolside, or mild-moderate hikes.
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Reviewed in the United States on July 10, 2020
★★★★★ 4
Everyday sunblock
It’s an okay sunblock, light weight , and smells good . the only problem is that the expiration date is too soon that is 10/2021
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Reviewed in the United States on May 28, 2021
★★★★★ 5
Organic Sunscreen with an Air-Brushed Finish
I've been using the Coola Organic sunscreen on my face for about 5 years now. I love that it protects my skin without dangerous chemicals. The product has virtually no scent and has a pleasant creamy, but not greasy, texture. An additional perk is that it creates an instant "air-brushed" looking finish to my skin.
Note: I have found that you have to shake the tube (especially when new) or else the product emerges a bit watery at first.
I've always used the non-tinted formula so I can't comment on how the tinted formula works. Also, the "cooling" aspect of the product seems more of hype than reality. But, over all, this is an excellent sunscreen.
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Reviewed in the United States on April 9, 2021