The new ergonomic MC1K is a handheld survey meter using a built-in energy compensated GM detector.

The MC1K is an ergonomic handheld survey meter using a built-in energy compensated GM detector. It detects gamma and x-rays up to 1000 mR/hr over 4 selectable ranges. The energy compensated Geiger counter affords the detector a more linear response to gammas and x-rays over the full range. A beep sounds and a count light flashes with each event detected.

For more info: https://www.zabdiresources.com/monitor-mc1k-analog-radiation-detector