An inexpensive pocket-size meter measures all forms of ionizing radiation: alpha and beta particles, gamma and x-rays. It is an accurate scientific instrument useful in research or for measuring radiation hazards in the lab, plant, or hospital.

Utilizes industry-standard Geiger-Muller tube, the same as in more expensive radiation detectors, with a thin mica end-window.

Calibration is done at factory by a pulse generator and is typically ±15% of the full scale relative to Cesium 137.

Easily certified to ANSI standards by a certified lab. Reads milliRoentgens per hour and counts per minute in three measuring ranges. The unit is protected by an anti-saturation circuit up to at least 100 times the maximum reading in the highest range.

Radiation counts detected are indicated by deflection of the needle on the meter scale, as well as by a flashing LED and an audible beeper; the unit responds to normal background radiation count.