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Contamination Products

STS Thermo Mini 900

Simulated Analogue Contamination Meter

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The STS Mini 900 consists of a real Thermo Fisher Mini Instruments 900 series with added electronics and cable connector so that it will operate with any STS simulated probe. This probe detects the gas given off by the STS simulant, which has been applied to the surface to be monitored.


This “radiation” may be detected by passing the probe close to and slowly over the surface, as would be done with a real probe when used by a skilled operator. Too fast, or too far away results in no detection – excellent training! Cross contamination can easily be demonstrated, as can decontamination – both benefits of using a “real” contamination, even if not radioactive. The contamination lasts at room temperature for 1-2 hours but totally evaporates within 24hrs leaving the training area ready for the next exercise.

The STS Mini 900 can be used with any of the STS simulated probes but is typically used with a 44A or EP15 style probe. The STS Mini 900 is in use in nuclear fuel processors, hospitals and universities. STS manufacture a wide range of simulators for most manufacturer’s products. We are happy to consider your specific task.

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Our products are all manufactured in the UK.

Contact us for a quote or to find your nearest distributor.

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