As we wrap up another remarkable year, we at Safecast want to thank our global community for your continued support, collaboration, and dedication to open environmental data. Together, we’ve made 2025 a year of incredible progress by expanding our datasets, supporting citizen science around the world, and launching our newest innovation: the bGeigie Zen.
To celebrate and give back, we’re kicking off our first ever Black Friday and Holiday Sale which is your chance to pick up Safecast devices at a special discount while helping sustain our mission into 2026!
November 19 – December 6, 2025
Enjoy 10% off all Safecast devices — including the latest bGeigie Zen the Airnote, and all bGeigieNano to Zen upgrades. Other items in the shop will also be 10% discounted. All discounts will be automatically applied, no need to use discount codes.
Holiday Sale
December 7 – December 25, 2025
Following the Black Friday Sale, we will continue the giving spirit with 5% off all devices throughout the holiday period.
To receive the discount, make sure the coupon code "BF2025" has been applied!
Every purchase directly supports Safecast’s independent environmental monitoring and data-sharing efforts. Help us to continue empowering communities to measure, share, and understand environmental data worldwide.
Your purchase doesn’t just put cutting-edge measurement tools in your hands. Your contribution fuels Safecast’s open data mission. In 2026, we plan to:
Support and expand our unprecedented joint initiative in Ukraine alongside Blues and SaveDnipro.
Grow our radiation and air-quality data network across new regions. !Stay tuned for our upcoming project in space!)
Enhance the Safecast API and data visualization tools for public use.
Host workshops and community training events for citizen scientists around the world.
Each device sale helps us keep our network running freely accessible and transparent.
All devices and upgrades in the Safecast Shop are included in the Black Friday and Holiday sale. Our 3 top most popular devices include…
Our newest radiation sensor, the bGeigieZen, brings simplicity, precision, and connectivity together in one sleek, open-source package. With its integrated display, easy USB-C charging, and seamless data upload to the Safecast map, it’s the perfect choice for both professionals and citizen scientists.
Regular price: US $750
Black Friday price (10% off): US $675 ($75 discount!)
Holiday price (5% off): US $712.50
Buy your bGeigie Zen here
The bGeigieZen Kit is our tried-and-true DIY kit — a community favourite for hands-on Makers who want to build their own mobile radiation detector and join the Safecast network from the ground up.
Regular price: US $450
Black Friday price (10% off): US $405 ($45 discount!)
Holiday price (5% off): US $427.50
Buy your bGeigieZen Kit here
Measure air quality effortlessly with the Airnote, a solar-powered device that continuously measures PM2.5, PM10, temperature, and humidity — no Wi-Fi or subscription required. Just set it up, and it starts contributing to the global Safecast air quality map right away.
Regular price: US $149
Black Friday price (10% off): US $134.10 ($14.90 discount!)
Holiday price (5% off): US $141.55
Buy your Airnote here
Whether you’re shopping for yourself, a fellow maker, or a budding citizen scientist, your purchase of a Safecast device supports independent environmental monitoring and helps keep global data open and free.
Let’s make 2026 another year of transparency, empowerment, and shared discovery.
🛒 Shop Now: https://bgeigiezen.safecast.jp/store-2/
📅 Black Friday Sale: Nov 19 – Dec 6 (10% off)
🎁 Holiday Sale: Dec 7 – Dec 25 (5% off)