| Speifications for FHT 111 CONTAMAT Contamination Monitor |
| Detector[s] | Butane-flow-type counter tubes with refillable gas reservoir, window area 100 or 166cm2 Xenon counter tubes with permanent gas filling, windows area 100 or 166cm2 Tritium counter tube with refillable gas reservoir |
| Measuring Time | approx. 150 h with batteries at background radiation |
| Units | Results in cps, Bq or Bq/cm2 |
| Display | Display range: 0 to 19,999 s-1; 0 to 19,999 Bq/cm2; 0 to 19,999 or to 19,999 x 103Bq |
| Battery [Type] | 5 AA cells or 5 NiCd rechargeable cells |
| Battery [Life] | A set of batteries s sufficient for approx. 150 hours of continuous operation with natural background |
| Humidity | up to 90% rh, non-condensing |
| Air Pressure | 700 to 1060 hPa |
| Temperature Range | Operating temperature: -10 to +50°C (14 to 122°F); butane, +10 to 40°C (50 to 104°F) Storage temperature: -25 to +60°C (-13 to +140°F) |
| Dimensions | 8.5 x 5.4 x 4.4 in. (216 x 138 x 111mm) |
| Weight | 2.1 lb (950g) |