(e.g., is it a gaming peripheral, an engine part, or a software tool)? This will help me generate the specific article you need.
: Sealed sources are housed in containers (often Class P portable containers) rated for specific activities, ensuring dose rates at the external surface do not exceed 2. Gamma Detection in "Hot" Environments
"gamma rc37z hot" appears to refer to the Gamma+ Professional Hot Black
Knowing if it is a part number for a specific sensor, a regulatory code , or a specific isotope would help in locating the exact document you need.