Frequently Ask Questions

Many answers to common questions about our radiation detectors can be found here. If you can’t find the answer you’re looking for in the FAQs, feel free to submit your own question and we’ll find an answer for you if we can! You can also ask questions about each FAQ in the “Comment on this FAQ” section if you need some elaboration on the answer.

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No. You can order the RAD60 pre-programmed, however, you can only pre-program one additional setting, such as 25mR. However, if you change that alarm level to the defaults again, you lose the pre-programmed alarm setting.
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Mr. Tuấn says:

December 31, 1969 at 6:00 pm

I need to buy 01 Inspector USB device to ask if you are producing this device

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Radiation Alert says:

December 31, 1969 at 6:00 pm

Hi Mr. Tuan, We have since discontinued that model and no longer manufacture The Inspector. We now offer The Ranger in its place. If yuo let me know your final destination, I can provide you with a local distributor for pricing and availability.

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You should get about 10-20 counts per minute just from background with the Monitor 4. This means that you should get 10-20 flashes of the LED, or flash and beep if it's in audio mode. If you are getting a good battery and nothing when you put it up to a source, it could be a bad tube.
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Charles J. Williams says:

December 31, 1969 at 6:00 pm

Please direct me to the software for my SE International EXP w/ mini USB output on the side.

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Radiation Alert says:

December 31, 1969 at 6:00 pm

Hi Charles, You can download the free USB software at the following link: https://seintl.com/radiation-alert/software/observer-usb/ Also, all of our Radiation Alert® software packages are available at the following link: https://seintl.com/radiation-detectors/radiation-alert-software/ Let me know if I can be of further assistance and I'll be happy to help.

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Yes, you can. There is no issue using a Lithium batteries in our detectors instead of alkaline.
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Clifford D. Weiss, CPO says:

December 31, 1969 at 6:00 pm

Dear Sir, What would be the X-Ray sensitivity factor in cpm/mR/hr? Is it similar to the gamma sensitivity of 3,500 cpm per mR/hr? Thanks. Sincerely, Cliff

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Radiation Alert says:

December 31, 1969 at 6:00 pm

Hi Cliff, X-rays and Gamma are treated the same by the detector. The difference comes in with the pulse width of the X-ray itself. If the pulse width is smaller than the dead time of the tube (15 microseconds for the SentryEC), then you might miss some of the counts. Otherwise, you can use the Gamma Energy Response graph on the SentryEC page to find your answer for specific energies. https://seintl.com/sentry-ec

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You can do this one of two ways. You can turn on the data logging via the Utility Menu on the unit itself. You can access the Utility Menu by holding down the plus button while powering on your detector. Set the date and time first, then turn on the recording feature. You can also turn on the data logging with the Observer USB Software by syncing the time and date of your computer and turning on the data logging via the Cal Panel.

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We recommend yearly calibrations, although our instruments hold a stable calibration and rarely need adjusting.

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