Nuclear Radiation Detector AKSTEST Geiger Counter Nuclear Radiation Detector，Portable Handheld Beta Gamma X-ray Rechargeable Radiation Monitor Meter，Radiation Dosimeter with Audible Flash Alarms

It was too weak and you do not work well, thank you for trying.

This device has given me peace of mind. Working near a site with known radioactive material leakage, I was concerned about potential exposure. I already owned a more expensive meter, but this one provides a quick and easy way to check radiation levels. For instance, I walked along the fence line of the storage facility and noticed the readings were elevated compared to my baseline measurements at home. It was reassuring to have concrete data. The audible alarms and clear display are very helpful, and the long battery life means I don't have to constantly worry about recharging it. It’s simple to operate, and I appreciate the added sense of security it provides.

First off, this little pin sized device IS NOT a Geiger Counter. It is simply a reusable digital dosimeter not unlike those old yellow rad cards dating back to the 50’s. Fortunately with this little device, (presumably) you get a more accurate reading as to the level of exposure in real time and you don’t have to toss this one in the trash after it has been exposed to radiation. Simply wipe it down, recharge it and continue use.I’m not exactly equipped to do thorough testing to ensure full functionality but it seems to at least be detecting back-ground radiation (solar flares, air born particulates and the likes) so I can only assume it is functioning as expected. The test will be to take it to the dentist during my next checkup and see how well it detects the x-ray machine.My only complaint so far are the unclear instructions and the lack of ability to adjust the display time-out mode (which takes a full 5 minutes to turn off). To adjust the dose alarm setting you must unlock the device: Press and hold power button, Press and hold menu button then release the power button to unlock. Repeat steps to re-lock. The dose alarm is the only menu option that can be changed.I do wish the device displayed the detection levels for each specific form of radiation so the user could know what form of radiation they are or may be exposed to and determine how to remedy the problem, if possible. The price does seem fair for what it is and potentially worth it for peace of mind if you live in a hazard zone or down wind of nuclear facilities or military bases.

I got this Radiation Detector to check around the house for sources of radiation. The reading was slightly higher under the house, but not much. I also feel better about being able to test when using our microwave oven. I do wish there was some sort of guide that interprets results better for us dummies.

I'm rarely in contact with radiation. Well I don't think I am, but how would I know? Now I have a way of finding out. This pen sized geiger counter seems to do a good job of detecting background radiation and providing alarms at many preset levels, lowest being 0.6uSv. I set this detector on a bunch of bananas and that is when I received the highest readings of 0.63uSv which triggered the alarm and buzzer. I was unable to get the alarm to trigger again however even while keeping the detector on the bananas for over an hour. Maybe it was just luck that it triggered the first time.I do like the size of this as it's very portable and the battery lasts at least up to 46 hours during my testing. I wouldn't clip this to a belt or jeans as the clip would likely break. A shirt pocket would be a better place for this. Since I don't have any other detectors to compare this against, I can't tell how accurate it actually is but it does appear to be responsive to changes in background radiation.Overall, I'm happy with this device and it's good enough for my needs.

I purchased this for my classroom and am very pleased. Stays charged a long time.

Ok, first off, this is not a tester Noris it a detector that gives real time rad levels and will not test materials. If that's the reason you're looking at this radiation pen detector, than I'd suggest you move on from this one and look for a more serious product. I got this myself under the impression it would give more immediate readings, it does not. To test any material it would have to remain in contact with the items for some time, as this reads the rad levels over a space of time.To add insult to injury, the instructions are not the best. They aren't very understandable and the only determinable set of instructions is on the bottom right inside where it states how to unlock the "locked" area that allows a person to set some personal parameters. Other than that, the so called instructions that come with it are pretty much useless for the common lay person.To the pen itself. Turning it on the power key needs to be held down for about 2-3 seconds and it'll beep and the screen will say hello then go to the measurement screen. There is a Dose Rate screen which starts with a measurement in uSv/h, so micro Sierverts per hour, more simply, radiation per hour. Normal background radiation is around 1 uSv/h, which this seems to display eventually over the hour in increasing measure. The next screen shoe a small time clock representing time running and below that the Dose in uSv. This is the screen I would have thought would show a more realistic view of the current surroundings, tho at a static setting in front of my computer as I type this, it maintains a static 0.01 uSv, where as the previous screen adjust every few minutes up and down. The next two screens shows the Average exposure and the next one the Maximum Dose received since it's been turned on. I've had this next to my computer, my phone, and my microwave on different tests, there wasn't a lot of overall movement. Tho after 09:40 of run time the Max reading, again in front of my computer, shows a max reading of 0.35 uSv/h with Dose Rate at 0.07 uSv/h which adjust up and down sporadically to 0.11 uSv/h and the Dose screen has gone from 0.01 to 0.02 uSv.Based on this information is reading some rad's just not in real time, only over exposed time.The product page mentions other save screens and options that I honestly can't figure out, as again, the instructions don't explain them and the YouTube videos I can find are from preppers that don't know anymore about the device than I do. I can't find any info on any website to assist with it.It comes in a pretty box like you would see on a store shelf. Comes with a charging cable, a very short one, that's USB B to USB C, the USB C end is the charging end that connects to the device to charge. There is a charging indicator and a battery level meter on the LCD screen. There is also a random flashing green light that the instructions don't explain what exactly its purpose is.To reset the device, my best guess is to turn it off and then back on again. Seems to work that way when I do that for testing other settings. For long term exposure it seems like it would work, tho this is coming at the cost of being exposed already before it indicates that it's at a bad level, which is why I'd prefer a real time detection setting on rad meter. Tho, for just wearing around and seeing what's in the world, it's a neat device. Tho if you live next to a nuclear plant and want better readings quicker, this won't help much, at least not until you've been exposed for some time.

But this is a tool that will let you know if things are dangerous. Practice with it