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Graetz - Model GammaFlash -Gamma Radiation Warning Light
The Gamma radiation warning light GRAETZ GammaFlash is used to determine and set up exclusion zones when a specified local dose rate of gamma and X-ray radiation is detected. Exceeding the specified warning threshold is clearly indicated visually and acoustically. With its extremely compact and robust design, as well as a magnetic bottom – for attaching the device to metallic surfaces – this dose rate warning device is particularly suitable for use by fire departments, civil defense and disaster control forces.
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- Easy to operate, even with firefighter gloves on
- Clear visual and audible alarm when the set warning threshold of the local dose rate is exceeded
- Dust and splash protection as well as protection against short-term immersion in water (protection class IP67)
- Oil and petrol resistant
- Magnetic back for attachment to metal surfaces
- Individualization of the housing with own logo or lettering possible
- GammaFlash is a lightweight, rugged, battery-powered dose rate warning device for the detection of gamma and X-rays in the ?*(10) ambient dose equivalent rate measurand.
- Detector: Geiger-Müller counter tube with energy filter
- It has a fixed warning threshold that triggers a visual and audible alarm when exceeded
- The audible alarm can be acknowledged via a pushbutton on the housing perimeter
- Below the preset warning threshold, the GammaFlash indicates the functional readiness and battery status via a red LED
- By changing the blinking frequency of the optical single pulse display, an increase or decrease of the dose rate is indicated
- Customized warning threshold between 7.5 µSv/h and 10 mSv/h can be implemented ex works
- Easy to operate even with firefighter gloves on
- The plastic housing is jet-proof, oil and petrol resistant
- Thanks to a built-in magnet, the gamma radiation warning light can be attached to suitable metal surfaces if required
- Possibility of individual labeling of the housing cover
Notice:
- In the firefighter version, the GammaFlash is preset to the dose rate warning threshold of 25 µSv/h for determining the limit of a hazardous area

- For other applications, a customer-specific warning threshold between 7.5 μSv/h and 10 mSv/h can also be implemented ex works on request.
- Individual labeling of the housing cover possible on request.
