General Purpose Ratemeter - Model 18
CE Seal

This general purpose, handheld analog ratemeter supports GM, proportional, and scintillation type detectors. The analog meter face comes in a variety of options to support the measurement units and ranges for the optional external detector(s) selected.
The unique capability this instrument offers is its ability to select between three different detector setups.  This feature facilitates switching detectors in the field without requiring calibration adjustments.  In addition to the three-position detector selector switch, the front panel also provides the user with the capability to switch the operating window between an open (gross) channel and a pre-selected narrower setting when targeting specific energies.  Other front-panel controls include a rotary switch for selecting the four-decade range, instrument shut-off and battery test, an audio on/off switch, a fast/slow response switch, a high-voltage display button, and a count reset button.

The aluminum cast instrument housing with its separate battery compartment and accompanying metal handle offer an industrial robustness and quality that promote long-lasting protection and instrument life.  A one meter (39 in.) straight type detector cable with "C" style connector is included in the price of the instrument.