SBM-20 Geiger Muller Tube

Q: Does the data sheet come in English?

Hahahaha....no. It doesn't come with a data sheet at all. That being said, a little research into the nature of the device(s) will yield suitable guesstimates. These are low current, fairly low (280 - 350) volt tubes and they're SLOW, so don't expect to get good science out of them. Wikipedia has a little bit of data on them, and a few trial runs with cheap isolation type electronics can give you some solid state circuitry, but they're really designed for the vacuum tube era and mate perfectly with old triodes. Don't try juicing it up, look at the operating curve for the reason why. Good luck to you, they're interesting tech toys. You DO need a really clean DC supply and adequate shielding for the counter, otherwise you'll be swamped with noise.

Q: If the tube is sensitive to gamma radiation, will it also work for X-rays as well?

Yes, the tube will detect x-rays, however there are no specifications for x-ray sensitivity so performance is not guaranteed. I will say that other customers are using it to detect x-rays and have been satisfied by the performance.

Q: How do you properly pack/store this device in your luggage? Will anything happen to it if it passes through an X-ray machine?

This should not be a problem. The biggest risk is shock or crush damage. Make sure to protect the tube from being accidentally dented or crushed, as the tubes are very fragile! I recommend a sturdy box or plastic enclosure to protect the tube, and sufficient bubble wrap to keep the tube from rattling around inside the box. As an aside, these tubes can be used to detect x-rays, but I do not recommend attempting to this in an airport security line. You can see the kit being used to detect x-rays in several Applied Science videos, including this one: https://www.youtube.com/watch?v=H7ldYhzKAp4&ab_channel=AppliedScience

Q: Is this device tsa approved? i am planning on traveling to ecuador but i am concerned if the tsa will not allow me to take this on a plane.

I'm not aware of a TSA regulation that specifically pertains to Geiger counter tubes. However, Geiger Counters are specifically allowed: https://www.tsa.gov/travel/security-screening/whatcanibring/items/geiger-counters

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Product ID: 733758462

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Details

Brand
MightyOhm
Material
ガラス
Color
ゴールド
Item Weight
0.02 Kilograms
UPC
860005573226
Manufacturer
MightyOhm LLC

📏Compact 12.45 cm length for versatile DIY use

🧪Premium glass build ensures durability & precision

⚛️High sensitivity to beta & gamma radiation

Frequently Bought Together

MightyOhm SBM-20 Geiger-Muller Tube

MightyOhm Geiger Counter Kit Bundle

Shkalacar Assembled DIY Geiger Counter Kit, DIY Nuclear Radiation Detector Kit with Miller Tube, Portable Geiger Counter, Assembled Radiation Detector System Experimental Module

Description

⚡ Detect the unseen, join the radiation revolution!

TRUSTED BY MAKERS - A go-to choice for the DIY community, empowering you to join the cutting edge of radiation monitoring.
COMPACT LIGHTWEIGHT - At just 18g and 12.45 cm, it fits seamlessly into custom Geiger counter builds without bulk.
TESTED FOR RELIABILITY - Each tube undergoes rigorous testing to guarantee consistent performance every time.
PREMIUM GLASS CONSTRUCTION - Durable glass material ensures longevity and stable readings under varied conditions.
PRECISION RADIATION DETECTION - Engineered for accurate beta and gamma ray sensing, perfect for serious DIY enthusiasts.

The SBM-20 Geiger Muller Tube by MightyOhm is a compact, lightweight, and highly sensitive sensor designed for beta and gamma radiation detection. Crafted from durable glass and rigorously tested, it is the preferred component for DIY Geiger counter projects, delivering reliable and precise radiation monitoring.

Specifications

Brand	MightyOhm
Model Number	1011
Package Dimensions	12.45 x 2.01 x 2.01 cm; 18 g
Color	ゴールド
Material	ガラス
Are Batteries Included	No
Item Weight	18 g

Have a Question? See What Others Asked

Does the data sheet come in English?

If the tube is sensitive to gamma radiation, will it also work for X-rays as well?

How do you properly pack/store this device in your luggage? Will anything happen to it if it passes through an X-ray machine?

Is this device tsa approved? i am planning on traveling to ecuador but i am concerned if the tsa will not allow me to take this on a plane.

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