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Gravity: Geiger Counter Module Ionizing Radiation Detector

Sale price €67,86
SKU: DF-SEN0463

📦 Location of the warehouse: China

🚚 We will ship your order within 1-3 working days after the order is taken.

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Free Shipping from 30€ in Germany, 50€ in the EU!

- EU & US Countries Delivery Time: 5~10 working days.

- Other Countries Delivery Time: 2~2.5 weeks.

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Guarantee & Return Policy

Effective Date: August 7, 2025

At OpenELAB, we are committed to providing accurate product descriptions and delivering high-quality products. If you experience any issues with your purchase, please notify us within 30 days of the shipment date.

  

1. Warranty Disclaimer

Unless explicitly stated in a specific agreement or purchase order, OpenELAB makes no warranties—express or implied—regarding the fitness, suitability, or merchantability of any product for a particular purpose or special use.

  

2. Warranty Policy

Warranty Period

The standard warranty period for products sold by OpenELAB is 12 months from the date of delivery.

Under this warranty, OpenELAB will make a reasonable effort to repair or replace products free of charge if defects are due to issues with raw materials, design, or manufacturing.

If the defect qualifies under this policy but falls outside the covered scope, reasonable charges may apply for repair or replacement.

After the warranty period, support may still be available at a reasonable fee.

  

Warranty Exclusions

The warranty does not apply in the following cases:

  • The product is beyond the 12-month warranty period.
  • Damage due to misuse, improper maintenance or storage, or failure to follow the user guide or manual.
  • Issues caused by Force Majeure events (e.g., natural disasters, war, legal changes, etc.).
  • Unauthorized repair attempts by the customer.
  • The product is not defective but has been opened and is non-returnable by policy.

   

3. Returns & Refunds

If you're not satisfied with your purchase, you may be eligible for a return or exchange:

  • Return for Refund: Within 15 days of receipt (unopened).
  • Return for Replacement: Within 30 days of receipt (damaged or defective).
  • Exchange Window: Up to 30 days from receipt.

Please email us at info@openelab.io for a return authorization before sending anything back.

  

Return Conditions

  • Items must be in original, clean, and mint condition with packaging intact.
  • Returns of damaged, used, scratched, modified, or programmed items will not be accepted.
  • Include the receipt, a brief note with your name, order number, and reason for return.

  

Shipping & Fees

  • Customers are responsible for return shipping to our warehouses in Europe, the US, or China.
  • If a return is requested due to customer reasons (e.g., change of mind, incorrect order, etc.), both the original shipping cost and the return shipping cost will be deducted from the refund amount.
  • For returns due to customer reasons, we will generate and provide a return shipping label. 

 

Payment Platform Fees

For all refunds requested due to customer reasons, a standard service fee will be deducted from the refund amount, which is charged by the payment platforms. The specific fees are as follows:

Shopify Payments: 1.8% + €0.3

PayPal: 4.4% 

 
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Gravity: Geiger Counter Module Ionizing Radiation Detector-1

Gravity: Geiger Counter Module Ionizing Radiation Detector

€67,86

The Gravity: Geiger Counter Module is a sensitive radiation detection module designed for educational use, physics demonstrations, and electronics integration. It comes pre-equipped with a M4011 Geiger tube, allowing it to detect ionizing radiation such as X-rays, gamma rays, and nuclear particles.

This module is ideal for makers, students, and engineers working on projects involving radioactive sources, natural radiation detection, or true random number generation.

Not for use in radiation dose measurement that directly affects personal safety.

 

What Can It Detect?

Radiation sources can be hidden in:

  • Marble and ceramic materials

  • Ores, minerals, and gemstones

  • Anion powders and decorative materials
    These can emit small amounts of natural radioactive elements, undetectable without a Geiger counter.

 

Features

  • High-sensitivity M4011 Geiger tube

  • ±400V drive voltage for reliable particle detection

  • Digital pulse signal output (easy to interface with Arduino, Raspberry Pi, and other MCUs)

  • Great for STEM learning, radiation science, and DIY physics experiments


Applications

  • Detecting ionizing radiation from natural and synthetic sources

  • Creating DIY nuclear monitoring devices

  • Teaching nuclear physics principles

  • Building entropy-based random number generators


Technical Specifications

Geiger Counter Module

  • Power Supply: 3.3V ~ 5V

  • Signal Output: Digital output (low when pulse detected)

  • Driving Voltage: Approx. 400V

  • Maximum Detection Range: 1200 µSv/h (theoretical)

  • Dimensions: 107 × 42mm (4.21” × 1.65”)

M4011 Geiger Tube

  • Operating Voltage: 380V ~ 450V

  • Background Counts: ~25 CPM

  • CPM Ratio: 153.8 CPM/(µSv/h)

  • Tube Size: Φ10mm × 88mm


Included in the Box

  • Gravity: Geiger Counter Module (w/ M4011 Tube) ×1

  • Gravity 3-Pin Sensor Connector ×1


Example Projects

Making a Desktop Geiger Counter with Unihiker --- Real-Time Nuclear Radiation Monitoring
Ionizing Radiation Detector

 

Important Notes

  • This product is designed for educational and demonstration purposes only.

  • It cannot be used for professional radiation safety evaluation or medical purposes.


Reference

Product wiki

 1. General Shipping Information

  • We provide premium shipping methods with a tracking number for each order.
  • Shipping address should be input in English without any special symbols to help the courier company recognize your address in the system. We will ship according to the shipping address you provided. Please notify us of any address change before your order is marked "Shipped" to avoid parcel loss.
  • Please contact our customer service staff immediately if you need to cancel or change an order. Once your order has reached "Shipped" status, it can no longer be canceled or changed in any way. To avoid complications, please recheck your shopping cart before checkout.
  • We can ship all in-stock orders within 1 business day as your order has been confirmed.
  • All items are inspected before dispatch and are carefully hand-packed.
  • With standard courier practice, you need to check the contents of the parcel before signing for your goods. Otherwise, we will not be held responsible for any damage that may have occurred in transit.

 

2. Shipping Options for Germany, EU* countries and US

(For Products in Munich Warehouse, Long Beach Warehouse)

2.1 Shipping options for an order value of up to €30 inside Germany, €50 inside the EU* or €45 in the U.S.:

Shipping Options:

Shipping Options Germany EU*
Deutsche Post

 €3.5 
Arrive in 3-4 Business Days		 €6 
Arrive in 5-9 Business Days
DHL Paket

 €6 
Arrive in 2-3 Business Days		 €15 
Arrive in 3-7 Business Days
DHL Express

 €14 
Arrive in 1-2 Business Day		 €65 
Arrive in 2-3 Business Days
Shipping Options Continental U.S. Non-Continental U.S.
USPS Ground Advantage

 €4.95 
Arrive in 3-7 Business Days		 €6.95 
Arrive in 5-9 Business Days
UPS Express

 €11.95 
Arrive in 2-4 Business Days		 €13.95 
Arrive in 3-7 Business Days

 

 

2.2 Free shipping options for an order value of above €30 inside Germany, €50 inside the EU* or €45 in US :

Free Shipping Options Germany EU*
Deutsche Post

 Free Above €30 Free Above €50
DHL Paket 

 + €2 for Above €30 / Free Above €60 + €8 for Above €50 / Free Above €80
DHL Express 

 + €10 for Above €30 + €60 for Above €50
Free Shipping Options Continental U.S. Non-Continental U.S.
USPS Ground Advantage

 Free above €45 Free above €60
UPS Express 

 + € 8.95 for Above €45 + € 11.95 for Above €45

  • Certain EU Countries are not included in our EU Zone definition: United Kingdom (excluding Ireland), Switzerland, Liechtenstein, Vatican City, Albania, Belarus, Norway, Ukraine, and Iceland. For the above countries, the International Shipping Rule applies.
  • The regions in the Non-Continental U.S. include: Alaska, American Samoa, Guam, Hawaii, the Marshall Islands, the Northern Mariana Islands, Palau, Puerto Rico, the U.S. Virgin Islands, the Armed Forces of America, the Armed Forces in Europe, the Armed Forces in the Pacific, and the U.S. outlying islands. The shipping and delivery to these areas are subject to the Non-Continental U.S. shipping rules.
  

2.3 Shipping Options for International Countries:

(via Deutsche Post or YunExpress)

Order Amount International
€0 - €15 €8
€15 - €30 €7
€30 - €50 €6
€50 and above €4

Important Notice:

  • Please verify the inventory location on the product page before placing your order to confirm delivery timeframes. 
  • For products in the Shenzhen warehouse, we will typically first ship the products from the Shenzhen warehouse to our Munich warehouse or Long Beach warehouse, which will take around 1.5 weeks. After we receive the shipment in Munich/ Long Beach, we will send the items to you. We will only arrange YunExpress shipping from Shenzhen for orders with products in the Shenzhen warehouse worth more than €50.
  • If you place an order with products from both Munich and Shenzhen warehouses, we will first ship the products in the Munich warehouse, and then send the remaining products to you when we receive them from Shenzhen.

   

3. International Warehouse

Our products are stored in both our Munich and Shenzhen warehouses to provide more flexible logistics solutions tailored to different regions and customer needs. On each product's description page, we indicate the specific warehouse location to help you better plan your purchase and delivery schedule.
 

3.1 German Warehouse

For products stored in our warehouse in Munich, we use either Deutsche Post or DHL for shipping, depending on the size of the package. Logistics within Germany are very efficient, with an estimated delivery time of 2-4 business days, ensuring you receive your order quickly and conveniently. For Western EU countries, the estimated delivery time is 4-6 business days. For Eastern EU countries, the estimated delivery time is 6-8 business days.
 

3.2 US Warehouse

For products stored in our warehouse in Long Beach, we use either USPS or UPS for shipping, depending on the size of the package. Logistics within U.S. are very efficient, with an estimated delivery time of 3-7 business days, ensuring you receive your order quickly and conveniently.    

3.3 Chinese Warehouse

We will only arrange YunExpressexpress shipping from Shenzhen for orders with products in the Shenzhen warehouse worth more than €50. Orders directly shipped from our Shenzhen warehouse are handled by YunExpress. Given the complexities of international shipping, the estimated delivery time for these packages is around 10 business days, though this may vary slightly due to customs processes or other uncontrollable factors. Otherwise, the products will first be shipped from China to our Munich warehouse and then shipped to the final destination. 
  
To ensure that your order is delivered within your desired timeframe, we recommend reviewing the warehouse information provided on the product pages before placing your order and selecting the appropriate shipping option. If you have any questions or need further assistance, please don't hesitate to contact our customer support team—we are here to help you!
   
       

4. Customs and Taxes

4.1 How are customs handled by OpenELAB for import or export?

Whether shipped from Germany or China, we cover all import duties and taxes, ensuring that you receive your package without any additional costs or hassle with customs.  
  

4.2 How is VAT charged when the Customer places an order from OpenELAB?

In accordance with the newest VAT e-commerce rules in the EU, OpenELAB shall have the right to charge the amount of VAT. The standard rate of actual VAT applied is subject to the European government's freedom to set the number and level. Such an amount of VAT will be charged when you place an order from OpenELAB. Please contact OpenELAB if you have any questions when you pay such VAT.  
  

4.3 What kind of fee will be charged except VAT?

Except for the VAT, OpenELAB will charge any handling fee when you are placing any purchase orders, which includes but is not limited to customs duty, import VAT, freight costs, etc. Customs duty and import VAT will be paid on the importation of goods from outside the EU into an EU country, and such amount is calculated as a percentage of the customs value of goods. Please note that it may take 1-2 working days for Deutsche Post/DHL/FEDEX or 3-4 working days for YunExpress for the status to update.


Effective Date: August 7, 2025

At OpenELAB, we are committed to providing accurate product descriptions and delivering high-quality products. If you experience any issues with your purchase, please notify us within 30 days of the shipment date.

  

1. Warranty Disclaimer

Unless explicitly stated in a specific agreement or purchase order, OpenELAB makes no warranties—express or implied—regarding the fitness, suitability, or merchantability of any product for a particular purpose or special use.

  

2. Warranty Policy

Warranty Period

The standard warranty period for products sold by OpenELAB is 12 months from the date of delivery.

Under this warranty, OpenELAB will make a reasonable effort to repair or replace products free of charge if defects are due to issues with raw materials, design, or manufacturing.

If the defect qualifies under this policy but falls outside the covered scope, reasonable charges may apply for repair or replacement.

After the warranty period, support may still be available at a reasonable fee.

  

Warranty Exclusions

The warranty does not apply in the following cases:

  • The product is beyond the 12-month warranty period.
  • Damage due to misuse, improper maintenance or storage, or failure to follow the user guide or manual.
  • Issues caused by Force Majeure events (e.g., natural disasters, war, legal changes, etc.).
  • Unauthorized repair attempts by the customer.
  • The product is not defective but has been opened and is non-returnable by policy.

   

3. Returns & Refunds

If you're not satisfied with your purchase, you may be eligible for a return or exchange:

  • Return for Refund: Within 15 days of receipt (unopened).
  • Return for Replacement: Within 30 days of receipt (damaged or defective).
  • Exchange Window: Up to 30 days from receipt.

Please email us at info@openelab.io for a return authorization before sending anything back.

  

Return Conditions

  • Items must be in original, clean, and mint condition with packaging intact.
  • Returns of damaged, used, scratched, modified, or programmed items will not be accepted.
  • Include the receipt, a brief note with your name, order number, and reason for return.

  

Shipping & Fees

  • Customers are responsible for return shipping to our warehouses in Europe, the US, or China.
  • If a return is requested due to customer reasons (e.g., change of mind, incorrect order, etc.), both the original shipping cost and the return shipping cost will be deducted from the refund amount.
  • For returns due to customer reasons, we will generate and provide a return shipping label. 

 

Payment Platform Fees

For all refunds requested due to customer reasons, a standard service fee will be deducted from the refund amount, which is charged by the payment platforms. The specific fees are as follows:

Shopify Payments: 1.8% + €0.3

PayPal: 4.4%