Modifying a Radiation Meter for (radioactive) Rock Collecting
Posted2 months agoActive2 months ago
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Radiation DetectionHardware ModificationScientific Equipment
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Radiation Detection
Hardware Modification
Scientific Equipment
The post describes modifying a Ludlum Model 3 radiation meter for rock collecting, with the discussion highlighting the manufacturer's user-friendly design and the instrument's reliability.
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Oct 24, 2025 at 9:24 PM EDT
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Oct 31, 2025 at 5:13 AM EDT
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I have no relation to the company, just a very satisfied customer.
The Ludlum mode 3 is an amazingly steady instrument and looks like it can last forever. I only hope its user interface can be improved a little bit. It is not obvious how to turn it off because there are two Off labels. One is for sound and the other is for power. Panel around the sound switch looks like:
Because AUD can be read as belongs to the reset button below, people turn off the sound and think they have switched off the meter :). The ON/OFF sound switch can be labeled as Unmute/Mute.