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Done Radiation Detection Hardware Network in Japan's video poster
Play is looking to deploy a network of radiation detection devices to the affected regions in Japan. Read more

Tokyo, Japan Hardware
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pledged of $33,000 goal
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This project was successfully funded on May 7, 2011. is looking to deploy a network of radiation detection devices to the affected regions in Japan.

Tokyo, Japan Hardware
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About this project


Help us get to $40,000! We have four days to go and we want to get to $40k. We are using our fourth update to promote this new goal. In honor of the number four, we're adding a prize at $400 - a limited-edition Safecast t-shirt.


Thank you, everyone, for helping us reach our goal! Any additional funds raised will help us purchase more Geiger counters to send to Japan.

We also wanted to clarify for our top donors. Anyone donating $1,000 will receive a Geiger counter. In addition to that, the Top 10 donors will also receive an iGeigie. So that would be two devices for the top 10.


Our thank you cards will come in the shape of Field Notes books. See more here: 

Field Notes book as a Thank You card


We've rebranded RDTN as Safecast. Here's an in-depth explanation behind the name change:

And for some information about how the funding will be applied, see this post:

About: (formerly is a website whose purpose is to provide an aggregate feed of nuclear radiation data from governmental, non-governmental and citizen-scientist sources. That data will be made available to everyone, including scientists and nuclear experts who can provide context for lay people. In the weeks following launch, it has become evident that there is a need for additional radiation reporting from the ground in Japan. This Kickstarter project will help us purchase up to 600 Geiger Counter devices that will be deployed to Japan. (The project minimum will fund about 100 devices). The data captured from these devices will feed into our website and will also be made available for others to use via Pachube, an open-source platform for monitoring sensor data globally. Our field members will be trained by ouradvisors to properly use these devices. The field members will be required to report to the website 8-10 times per day.

Open-Source Underpinnings:

We will make the raw data available from our network for anyone to use under Creative Commons 0 dedication. It is our goal that providing this data to non-profit organizations, governments and scientists will keep people and societies more informed in the current crisis as well as future incidents where data might otherwise be scarce. 

Phase 1 and Phase 2:

We want to eventually build our own network of devices. We recognize, however, that there’s an immediate need to get devices on the ground now. So our project has two phases. Phase 1 is about getting devices out to the areas with the least amount of data. Phase 2 will focus on  building a larger network of devices that will help governments, citizens and organizations understand immediate and long-term implications of radiation levels.

Where will they be deployed?

In looking at a map of radiation detection in Japan, there are many holes where no data is being captured whatsoever. Some of those are very close to Fukushima while others are well outside of Tokyo. The initial set of devices will be utilized in areas where coverage is sparse. We will deliver these devices to people on the ground who have been trained in how to use them. It could be a teacher, a university student, or a citizen scientist looking to contribute to the project.

Who will be using these devices?

We want to provide the device to someone who has an above-average understanding of technology, but not necessarily an expert. This should be someone who knows how to install an app on their iPhone or Android device, and is familiar with filling out forms on websites. No programming skills or engineering degree is required. Knowing how to set up a wifi-router is a plus.

Device List: (UPDATED)

We are currently working with a distributor of detection devices in order to get them at a discounted cost. Due to the ease of use of the CRM-100, we have decided to focus on this unit for our volunteers in Japan.


The CRM-100 is a general purpose geiger counter that measures alpha, beta, gamma, and x-radiation. It is intended for personal safety and educational purposes, not for professional applications. Like the popular Radalert 100, the CRM-100 features a 3-second update on its digital liquid crystal display (LCD). The LCD shows the current radiation level in your choice of milliroentgens per hour from .001 to 110 or counts per minute (cpm) from 0 to 350,000. When SI units are selected, the LCD shows readings in microsieverts per hour from .01 to 1100 or counts per second (cps) from 0 to 3,500. This instrument also offers an accumulated total and timer function, up to 9,999,000 counts and 40 hours. A red LED blinks and a beeper chirps with each count (the chirp can be muted). 


Have a question? If the info above doesn't help, you can ask the project creator directly.

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  • You selected
    Pledge $10 or more

    227 backers

    An awesome thank you card screen printed in Portland.

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    Pledge $25 or more

    94 backers

    We'll give you a shout out in the Thank You section of our site!

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    Pledge $50 or more

    34 backers

    We'll give you a shout out in the Thank You section of our site and link back to your website or Twitter handle. (These links need to be non-commercial, please).

  • You selected
    Pledge $100 or more

    35 backers

    Limited edition poster and thank you card.

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    Pledge $250 or more

    15 backers

    All of the above AND your name on a sensor in Japan.

  • You selected
    Pledge $400 or more

    0 backers

    All of the above AND a super-awesome limited-edition Safecast t-shirt.

  • You selected
    Pledge $500 or more

    2 backers

    All of the above AND a picture of your sensor in action.

  • You selected
    Pledge $1,000 or more

    15 backers

    All of the above AND your very own radiation detection sensor.


Funding period

- (30 days)