The Tracerco T401 is a rugged, user-friendly contamination monitor for detecting radioactive surface contamination across nuclear, oil & gas, medical, and emergency response applications.
The Tracerco T401 contamination monitor gives responders a cost-effective way to detect radioactive surface contamination without the overhead of intrinsically safe equipment, making it well suited to a broad range of industrial and emergency environments.
Its rugged construction and straightforward operation support use across nuclear facilities, oil and gas operations, medical settings, and emergency response scenarios where quick, reliable surface screening is needed.
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| Performance | |
| Radiation detected | Alpha, beta and gamma. Automatic direct translation to Bq/cm2 for Cs-137, Am-241, C-14, Cl-36, Pb-210 (wet and dry), Ra-226 (wet and dry), Sr-90, Co-60, P-32, Pu-239, U-238 |
| Detector | Single halogen thin window Geiger Muller tube |
| Over range response Peak radiation dose rate | Bar graph display will read full scale. Digital numeric display shows 0UEr (over) above 4,000 cps |
| Count range | Bar graph display (0-1,000 cps) Digital numeric display in cps or Bq/cm2 |
| Humidity range | 0-95% |
| Power | |
| Battery | Standard 9V PP3 battery |
| Battery life | 100 h typically with background radiation |
| Low battery indication | On 4 h battery life remaining variation with battery voltage: Less than 15% over operating temperature range |
| Variation with battery voltage | Less than 15% over operating temperature range |
| Physical | |
| Case material | Robust, chemical resistant polymers |
| Weight | 1 kg (approx.) |
| Approvals & Warranty | |
| Ingress protection rating | Main case is sealed to IP65, sensor head sealed to IP34 |
| Standard compliance | EU directives: 2004/108/ EC Electromagnetic Compatibility Directive |
| Other | |
| Variation with temperature | Less than 2% |
Tracerco 401
The Tracerco T401 Contamination Monitor is a highly durable, handheld radiation detection device built for professionals working in demanding environments such as nuclear energy, oil and gas, medical and life sciences, environmental remediation, and emergency response.
Engineered for simplicity and accuracy, the T401 is designed to detect both naturally occurring radioactive material (NORM) and man-made isotopes. It features a detachable radiation probe with a flexible extension cable, dual visual displays, and audible alarms—making it an essential tool for contamination surveys, decontamination validation, and radiation safety.
Calibration, repair and maintenance for your detection instruments.