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Rad. Survey Meters- Model 4, 2S, 2D   arrow

Model 4

Model 4

Model 2S

Model 2S

Model 2D

Model 2D

Standard Features

  • High impact sealed case provides improved component protection.
  • Radiation detected Gamma or X-rays above 60 Kev.
  • Response time 90% of final reading in 7 seconds.
  • Low battery indicator.
  • Detector energy compensated, halogen quenched, internally mounted Geiger tube.
  • Precision within 10% at all levels.

Specific Unit Features

Feature

Model 4

Model 2S

Model 2D

Analog Meter-rugged   assembly with shatterproof lexan lens.

No

Yes

Yes

Range   selection-multi-purpose range selection switch & battery test

0 mR/hr through 2 R/hr

0-10, 0-100, 0-1000 mR/hr

0-10, 0-100, 0-1000 mR/hr

Battery life: Hrs@ 4   hrs/dayDays constant use

600

24

250

15

250

15

Illuminated digital   display

Yes

No

No

Geotropism % of full   scale

Not Applicable

±2 %

±2 %

Energy dependence   (within 20%)

80-1,000 Kev

80-1,000 Kev

80-1,000 Kev

Battery Complement

8 AA alkaline

2 “D” Cell

2 “D” Cell

Audible alarm

Automatic instantaneous over 250 mR/hr

Optional

Yes all ranges

Calibration with   Cs-137

± 10 %

± 10 %

± 10 %

Temperature dependence

± 5 %, -20°C to 55°C

± 10 %, -30°C to 50°C

± 10 %, -30°C to 50°C

Weight

2.9 lbs., 1.4 kg

3 lbs., 1.5 kg

3 lbs., 1.5 kg

Dosimeter Charger   & Audible alarm

Yes

No

Yes