Features:

• When you need to separately count alpha and beta concurrently, this is the right instrument for the job. The Model 2224-1 is an optimized Alpha Beta Ratemeter/Scaler that offers traditional analog readout supplemented with a digital LCD for the scaler function. A front panel mounted three way switch facilitates selecting alpha only, beta only or alpha plus beta. Other controls include a rotary switch for selecting any of 4 decades, battery test and instrument shut off, separate pushbuttons for testing the high voltage and resetting the counts, an audio volume adjustment knob and finally a scaler count start button located on the instrument handle. The instrument housing is cast aluminum incorporating a separate battery compartment and an accompanying metal handle that promote long lasting protection and instrument life. A dipswitch control housed internal to the instrument allows setting the scaler count time, audio divide by value and audible tone discrimination settings.

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