Geiger counter, Voltcraft Gamma-Check-Pro

Gamma Check Pro alerts you to any radioactive contamination straightaway. The device rapidly samples the radiation dose, with readouts displayed in mSv or µSv. This allows a quick assessment of food, equipment and building materials with regard to possible radioactive contamination (readout zero-referenced against natural background radiation).

Other features include a real-time clock with automatic summer/winter time changeover and leap year display. Sampling modes include counts, count rate and radiation dose, displayed individually or all at once. Sampling periods start with 1 min, lasting for about 100 days, or ad infinitum, and allow you to set custom radiation limits in the process. Auto-stores the most recent max reading (in µSv per hour), average radialtion levels over the past 24 hours, and time-stamps the most recent radiation dose, counts, count rate readings. These data can be accessed on the device at any time. Data logger with selectable sampling period, two memory settings (cumulative vs overwriting) and memory capacity display. Multiple operating modes : all enabled (On), energy-saving (Auto), and auto power-off. Userfriendly LC display with self-explanatory icons. Acoustic clicks/data entry confirmation can be turned off. Features a mini-USB slot for external control, data transfer, and battery charging.

Features:
*Number of ionization events displayed by audible clicks
*Auto Power Off
*Displays the average number of events during chosen reading periods
*Adjustable radiation limits. Default settings based on the limits recommended by the Radiological Protection Institute of Germany
*Selectable sampling time (longer sampling means increased reading accuracy)
*Enables cumulative sampling of the radiation dose over a couple of days with notification when the chosen limit has been reached.