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Comentado en los Estados Unidos el 17 de octubre de 2024
Nice inexpensive unit! It detects beta for sure (tested it with a bit of Americium from a smoke detector). When you power it up by holding the ON key for a bit it starts clicking and shows a picture of Rutherford for a few seconds, then some simple instructions, then you press any button to show the main screen.There are three audio modes by pressing the L key, two don't make any click noise, none seem to have any influence over the alarm. I think the alarm goes off when the graph max is exceeded, which is 100 (clicks per minute?). The M key resets the running graph. The R key turns the backlight on and off, you can't see the screen unless its on though.Inside, there is an STC8A8K64D4 processor, and a nice big J321 Geiger tube (on the left when you are holding the unit). With backlight on it draws ~30mA, off ~20mA. Included instruction booklet is multi-lingual and isn't super informative, but what do you expect? Charge cable not included, but it takes a standard cell phone USB type plug (not USB3) and a red LED lights up when it is charging (haven't tested that yet).I'm happy! Be aware that my pictures of the screen show some banding / Moire patterns, this is my phone camera doing that, you don't see them with your eye.[EDIT] Wanted to add:The graph vertical axis is samples per minute, and the horizontal axis is seconds. The vertical line inches forward at one second intervals and the full graph takes about 3.5 minutes to fill. After it fills, the vertical line goes back to the start at the left and the new data starts overwriting the old data.Like another reviewer, I wish there were some way to either increase the alarm threshold, or mute it altogether, but you probably won't encounter the need to do that in normal use. It would also be nice if there was a blinking LED to show click activity, so you could monitor things silently.I have another Geiger counter which has similar sensitivity, and it went absolutely berserk when I was just in the same room with it for several hours following a PET scan, but this unit arrived a day too late to try that. The radioactive tracers they inject you with produce gamma rays for many hours. So, as a science experiment, maybe get one of these and take it with you when you're going to get scanned.
Russ
Comentado en los Estados Unidos el 6 de diciembre de 2023
This was a nice little Geiger counter, unfortunately, the L button which controls the alarm would not silence the alarm and would not shut the speaker off. There was also no way to raise the setpoint for a high alarm level. Otherwise, I could’ve set it so high I would not have to hear the alarm sound.
Norma
Comentado en México el 1 de diciembre de 2023
Como es que no sé gestiona el estado en el que se envían los productos , los equipos deben venir nuevos y en perfectas condiciones.
A
Comentado en los Estados Unidos el 7 de septiembre de 2023
This little device works great. It even has a graph display for the radiation counts usually only seen on more expensive models. It makes clicking sounds whenever it detects a hit (not very loud). The display can be turned off to save battery power while still hearing clicks or warnings. The display has a very thin plastic sheet covering it that was scuffed up when I received it, but once I removed the sheet it looked brand new.
Eduardo M.
Comentado en los Estados Unidos el 25 de septiembre de 2023
Is easy. Good precision. Good user interface
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