Pocket-Size Meters
The Model 2401 is a pocket-sized, self-contained microR ratemeter with an analog display for measuring low-level gamma exposure. The unit utilizes a CsI detector integrated inside the instrument, and comes with a built-in audio and visual alarm. The metallic case, convenient size, and low price make this an ideal tool for checking ambient levels in a wide variety of applications.
Each time the Model 2401 is turned on, it measures background radiation levels and automatically determines the alarm setting. If the radiation levels exceed this setting, the alarm audio will beep every 1/8 second and the lamp will flash.
Availability: Commercially Available
| Manufacturer |
| Ludlum Measurements, Inc. |
| Product Name |
| Pocket-Size Meters |
| Detection Category |
| Radiological/Nuclear; |
| Detection Principle |
| Scintillation Detectors; |
| Application |
| Survey Meter; |
| Product Model Number |
| 2401 |
| Equipment Type |
| Instrument; |
| Product Synopsis |
| The Model 2401 is a pocket-sized, self-contained microR ratemeter with an analog display for measuring low-level gamma exposure. The unit utilizes a CsI detector integrated inside the instrument, and comes with a built-in audio and visual alarm. The metallic case, convenient size, and low price make this an ideal tool for checking ambient levels in a wide variety of applications.
Each time the Model 2401 is turned on, it measures background radiation levels and automatically determines the alarm setting. If the radiation levels exceed this setting, the alarm audio will beep every 1/8 second and the lamp will flash. |
| Availability |
| Commercially Available |
| Technology Readiness Level (TRL) |
| 9 |
| User Feedback Sources |
| None |
| Supporting Documentation |
| Docs: M2401-S.pdf; |
| Dimensions |
| 4.6 x 8.4 x 13.5 cm (1.8 x 3.3 x 5.3 in.) |
| Weight |
| 0.4 kg (0.9 lb), including battery |
| Power Requirements |
| one 9-volt battery, typically lasts 250 hours with alkaline battery at normal background levels |
| Transportability |
| Pocket Size; |
| Consumables |
| Battery |
| Available Accessories |
| Belt Clip (Model L-4397-176), metal clip
Handle (Model L-4397-165-01), convenient L-shaped handle
Case (Model L-2310517), zippered nylon case with web belt loop
Case (Model L-2311119), rugged water, dust, & crush resistant case
Wrist Strap (Model L-4397-182), woven nylon lanyard with clip |
| Communications Interface |
| None |
| Radiological Targets |
| Gamma and x-ray radiation |
| Sample Introduction |
| Radioactive Particle |
| Sensitivity/Detection Limits |
| 0–5000 µR/hr |
| Response Time (Sample Application To Output) |
| typically 5 seconds |
| Alarm Capability |
| Audible and visual |
