Meter Number: NSN 6665-110008 & Meter Close-up
The meter scale changes like the US Navy PDR-27,
PDR-43 or PDR-56 series Radiacmeters.
Instead of using one scale and a multiplier, it changes the scale and color.There
is a "flag" that moves
to indicate whether the meter is on or off. The range switch has 4
0 - 3 r/hr / Scale Indicator White (shown)
0 - 30 r/hr / Scale Indicator Blue
0 - 300 r/hr / Scale Indicator Red
Set Zero / White Scale Indicator
The meter can be read while in the carry case and a side flap opens to allow
access to the controls.
Side Control Panel & Operating Instructions
Batteries are located under the plate, left of the
All cast aluminum construction, with rubber gaskets
to insure being waterproof.
Unit has a modification record label inside showing
mods 1, 3 & 4 have been done, and
a label on the outside showing mods 4,7,8
& 9 have been done, but no indication of what they are.
Ready For Beta Detection
By removing the base plate from bottom the unit,
this meter can be used to detect beta radiation.
A beta sheild is mounted and held in position by a clip, shown at either
end of the unit.
The left photograph shows the plate covering the detector unit and blocking
The right photograph shows the plate moved to allow detecting of beta radiation.
On Left: Meter,
Dose Rate, Portable, Trainer, No. 1
On Right: Meter, Survey, Radiac No. 2
These are companion models, the trainer is used to
teach the use of the Radiac Model No. 2.
The range is low so it will detect the weak training sources used to simulate