Xpose Density Meter

SAS-Hitech-Xpose Miniature Contraband Detector

NEW! FOR 2020 Hitech Xpose is now water resistant to IP56 Standards and MIL-STD-810G

RoHS Compliant - also known as Lead - Free, under Directive 2002/95/EC, originated in the European Union restricts the use of six hazardous materials. All applicable products for the EU market are RoHS compliant.

Xpose Density Meter Complete Kit

The SAS-Hitech-Xpose contraband detector is a compact, lightweight, rugged, handheld density meter designed to aid law enforcement officials with the detection of hidden objects. This density meter represents the latest in technological advancement specifically designed and built for us by one of the largest defense companies in the USA – SASRAD is the exclusive sales outlet for this product worldwide.

Frequently, contraband is covertly hidden in inaccessible areas, such as walls, tires, bulkheads, etc., where direct observation is not possible. The Hitech-Xpose gives an indication of contraband concealed in these locations by measuring changes in density across the target area. Unexpected changes indicate the presence of hidden objects or compartments.

The ruggedized Hitech-Xpose unit has been designed with an ergonomic grip which may be used in either hand, anti-scratch detection surface, integrated safety wrist strap and a large, easy-to-read, illuminated graphical & numerical display.

Xpose Extension Arm
Xpose Extension Arm
Xpose Density Meter with Display
Xpose Extension Arm
Xpose Meter Functions
Xpose Meter Functions
Included In Density Meter Kit
Included In Density Meter Kit
Dimensions of Xpose Density Meter
Dimensions of Xpose Density Meter
Xpose Density Meter Complete Kit
Xpose Density Meter Complete Kit
Contraband found using the Xpose Density Meter hidden vehicle panel
Contraband found using the Xpose Density Meter hidden vehicle panel
Density Meter Scanning Vehicle
Density Meter Scanning Vehicle
Xpose Scanning Vehicle Door
Xpose Scanning Vehicle Door
Density Meter Inspecting Tire
Density Meter Inspecting Tire
Xpose Inspecting Car Door
Xpose Inspecting Car Door
Xpose Scan of Container for Contraband
Xpose Scan of Container for Contraband

In order to make SAS-Hitech-Xpose the toughest density meter on the market, we do not use polycarbonate lens on the display which all other manufacturers use, we use a Corning "Gorilla Glass" lens. It does not scratch or shatter, and is not easily broken, Engineered for a combination of thinness, lightness, and damage-resistance, it is used primarily as the cover glass for portable electronic devices including mobile phones, laptop computer displays, and some television screens. Corning Inc., says that Gorilla Glass' material's primary properties are its high scratch resistance (protective coating), and its hardness (with a Vickers hardness test rating of 622 to 701) — which allows thin glass without fragility.

Hitech-Xpose is lightweight (more than 20 percent lighter than other contraband detectors) and designed for ambidextrous operation, it has two main modes of operation – Survey, for indication of radiation sources in the vicinity and Inspect, for contraband detection. SAS-Hitech-Xpose flexible readout options include a wireless remote control tablet for ease of use in tight inspection locations and a USB port for connection with a computer. The remote control tablet is fully functioning and will operate all features of the Hitech Xpose, as well as accept any programs or information that the client wishes to add.

The standard Hitech-Xpose is water resistant to IP56 (IEC Standard 60529) which offers dust and water resistance – Also available -to special order only- a totally waterproof version of this unit which is manufactured in certain minimum quantities only. Please request more information.

Survey Mode

In survey mode, SAS-Hitech-Xpose acts as a radiation survey meter to locate sources of radioactive material, providing real-time, local radiation rate and count. Results are shown in graphical and numeric format.

Inspect Mode

In inspect mode, SAS-Hitech-Xpose acts a density meter to locate contraband, it incorporates a large CsI (TI) detector for faster scanning, improved penetration, and quicker indication of “hits” triggered by an abrupt change in density. The operator can select to display readings in graphical or numerical format and with or without alarm. There is also an option to display the current reading with background zeroed out.


SAS-Hitech-Xpose uses a common, built-in calibration block that enables universal calibration across similar SAS-Hitech-Xpose Contraband Detector models. After calibration, all units will read +/- 2% of each other. The calibration automatically compensates for decay of the source and aging of internal components. The calibration routine runs in under 30 seconds.

The graphing feature is illustrated below:

The Hitech-Xpose Contraband Detector is equipped with software and internal memory to store search data for up to 100 of the most recent scans. Each scan contains the 30 second count rate plus a time stamp. Search data can be uploaded to the user’s personal computer using the Xpose Tools software toolkit.

Xpose scan record display sample

Figure below displays the Xpose Tools Scan Section window with a Scan Record displayed.

Individual Scan Records are stored for use in evidence, quality and training purposes.

Display screen comparison

This image shows the difference in size and visibility of the Display screen when compared to a competitor demonstrates the high quality of the screen and also provides an illustration of the last scan with date & time of the scan – all downloadable to a computer using the Xpose Tools software.

Comparison of Xpose Density Meter screen size vs competitor

Main Features

  • Large detector for faster response and increased penetration
  • 2.5-inch LCD display with density-time graphing and digital output
  • Ergonomic one-hand, OneTouch operation
  • USB or Bluetooth wireless connection to remote graphical display and extension arm
  • 3.5mm stereo headset jack for use in noisy environments or stealth operation
  • Ruggedized for use in industrial and outdoor environments water resistant to IP56
  • Lightweight, compact design
  • Built-in test and remote display functions


6.5 x 3.25 x 1.75 inches (165.4 x 82.5 x 44.4 mm)
1.9 lbs (865 g)
  • 400 x240 LCD video graphic display
  • Pushbutton back panel light
  • Low battery indicator
(2) AA alkaline batteries. Up to 40 hours of continuous operation or up to six months of stand-by
Operational modes
  1. Survey: observes environment giving indication of radiation sources in the vicinity
  2. Inspect: probes surface and provides user with indication of anomalous changes in density
  3. Calibration
  4. Built-in-test
Barium 133, exempt quantity (not exceeding 10 Micro curies, 370 kBq)
Source Shield
Tungsten alloy with spring-loaded shutter to ensure failure in the closed position. There is an indicator of the source position to notify user when source is open.
Thallium-activated Cesium Iodide CsI (Tl)
Depth of Reading
6 inches (15.2 cm)
  • 60 dB, 2.4 kHz, 0.5 sec. audible alert. Auto-adjusts the alarm trip point to 1 standard deviation
  • +1 count using 50 dB pulses of 0.50 second deviations
Scan Rate
Xpose scan speed is 50 readings per second, 0.02 seconds per reading
  • -5 to 122 F (-15 to +50C) conservative rating
  • Storage 0 to 140 F (-17 to 60 C)
  • Holster, wrist strap, calibration block
  • 3.5 mm headset
  • USB cable - Software DVD
  • Manual - Instruction/training DVD
  • Extension arm (optional)
  • Remote graphical / digital display Tablet with full remote control capability as well as display/storage and transmission
  • Other accessories in development

Technological advantages of Xpose over competitors

  1. Xpose is significantly smaller & lighter.
  2. Xpose is ambidextrous, may easily be used with either hand.
  3. Xpose is ISO 9001:2008 Certified. Water/dust resistant to IP56 MIL Spec 810G CE compliant
  4. Xpose “ON” buttons require much less force/pressure to actuate, making it less tiring to hold open
  5. Xpose has been ergonomically designed with “palm swell” to better fit in hand for comfortable all day use.
  6. Xpose has a lower profile and is less bulky/lighter when wearing on a belt.
  7. Xpose holster has safety strap so the unit is secure when crawling under a car or running.
  8. Xpose has larger multi-function display.
  9. Xpose has on-screen graphing to aid in detection of density variations (search mode) or radiation survey (Radscan mode). The graphing feature eliminates the need for a separate external display unit since scan information is stored and displayed on the screen even when switched off.
  10. Xpose display is easily viewable in bright light conditions.
  11. Xpose has “soft” function buttons that guide the user as to what functions the button will activate.
  12. Xpose’ s last reading is held on the display when the search buttons are released.
  13. Xpose search modes cycle at the press of the mode button. No need to turn the unit off to get back to “start”
  14. Xpose battery life is 2.5x times longer than competitors continuous “ON”, giving far longer operational time up to 40 hours 15. Xpose batteries are easily changed without a special tool.
  15. Xpose case is made of high impact cast urethane material. Drop tests show that Xpose Survives > 1 meter (3.28 ft) drop onto a concrete floor on all six sides.
  16. Xpose source has been specifically designed to minimize stray doses of radioactivity to user and provide a greatly improved detection signal.
  17. Xpose detector is all solid state eliminating the older technology photo multiplier tubes (PMT) and the high voltage necessary with PMT’s. This alone makes the Xpose far more rugged.
  18. Xpose has a larger detector surface area to aid in backscatter detection and radiation survey mode.
  19. Xpose utilizes a state-of-the-art processor and electronics for improved reliability, performance and ruggedness
  20. Xpose has a collapsible Xtender for long reach when required. connected by Bluetooth requiring no cables to make the connection (cable connection is available for those requiring this feature)
  21. Xpose Xtreme remote display Tablet is required for use with the Xtender shows all features of the main unit display and is connected by Bluetooth requiring no cables to make the connection ( cable connection is available for those requiring this feature) The Tablet is fully functional in all respects and controls all features of the Xpose.
  22. Xpose has a real time clock for time stamping surveys for evidentiary and chain of custody purposes.
  23. Xpose displays the time and date.
  24. Xpose is in service worldwide as well as in the USA
  25. Designed to be simple to use even by inexperienced operators as well as experts.
  26. Xpose has a USB port for uploading the time stamped scan data to a computer
  27. Xpose is designed for “instant on”. There is no delay between pressing the search buttons and starting a scan.
  28. Xpose has an NRC exempt distribution license in the USA so that there are no registration requirements, or encumbrances on the owner transferring ownership of the Xpose (competitors units require registration and documentation when transferred)
  29. Xpose Exempt Distribution License in the USA relieves the user of the obligation to assign the unit to an specific individual – we have additional information regarding this, available upon request
  30. Xpose has no special disposal requirements (Competitors unit requires hazardous waste disposal)
  31. Xpose is not subject to regulatory inspection (Others are)
  32. Xpose requires only a simple laminated manual as it is so easy to use and radiation licensing regulations and safety educational requirements for the operator do not apply Applies to USA only - regulations overseas should be checked with local authorities
  33. Xpose has at minimum all the same functions as competitors but greatly enhanced, due to the most modern technological advances being incorporated plus the advanced functions mentioned above.
  34. Xpose was developed in 2012 using most current technology competitors were developed 20+ years ago.
  35. Xpose has been developed by one of the largest USA Defense Contractors with sales of $12 Billion+ and 44,000 employees.

Dimensions and Weight

The Hitech-Xpose Contraband Detector is a compact density meter designed for ambidextrous operation that weighs just 1.9 pounds (862 grams). The unit offers a balanced, symmetrical design that enables single-handed control using either hand. physical dimensions for the unit shown below:
3.25” (8.255 cm) | 6.5” (16.51cm) | 1.75” (4.445 cm)

Xpose Dose Rate Comparison

Xpose compared to a typical chest X-ray, cross-country flights, eating bananas and typical background radiation

Comparison of XPOSE and Other Density Meters

Miniature Hand Held Contraband Detector Display

Is a 7.5 microcurie radiation source safer than 10 microcuries as competitors claim?

This paper is intended to explain the difference in the Effective Dose to humans between 2 different activities (7.5 uCi and 10 uCi) of 133Ba isotope used in a hand held contraband detector relative to ordinary risk we face in everyday life.

A competitor of ours has offered a version of their unit which is 7.5 microcuries of radiation against our 10 microcuries, claiming that this is safer for the user, In fact, the increased dose to a user of a 10 uCi source over a 7.5 uCi source for a worst case scenario is essentially equal to what one gets in one second of airplane flight on a cross country trip from Washington, D.C. to Los Angeles, CA, a total flying time of up to five hours or 1 in 18,000

10 Microcurie Source

Now let’s compare both these radiation source activities and the actual working life of the source. The working life is based on the sources initial activity and the half-life of the isotope. For 133Ba, the half-life is 10.53 years. So for a 7.5 uCi source, the working life is about 35-40% less than the working life of a 10 uCi source. This translates that the dollar per dollar cost of the 7.5 uCi source is much higher than the cost of the 10 uCi source! And finally another consideration is the scanning time for the contraband detector. Excluding other factors involved, a 7.5 uCi source has 25% less photons/sec output than a 10 uCi source and this in turn increases the length of time it takes to complete a scan. This also may reduce the probability of positively identifying a concealed item (contraband)

The Xpose has graphing & digital display, available tablet remote control of all functions and is MIL STD 810G - Water Resistant to IP56 (waterproof available on request) - ISO9001:2008 and most importantly sold under an Exempt Radiation License from the NRC. In other words virtually no restrictions on sale, possession of transfer of the unit.

Our competitor has none of these features.

In short, when comparing the 2 activities (7.5 uCi and 10 uCi) 133Ba sources in hand held contraband detection systems: For those interested in the science and math behind these conclusions we do have a detailed white paper available upon request.

Radiation Licensing


There are several important points that users and potential users of the New Technology SAS-Hitech-Xpose Contraband Detector should be aware of. In order to simplify ownership of this device, SAS-Hitech-Xpose has been developed and licensed under United States Law as an Exempt device. Other density meters of this type are licensed under a General license. There are highly important differences between the two types of licenses. Here are a couple of the major differences:


General licensed (competitors product) requirements (per their own manual):
  • Rope or cordoning off the area to keep people away
  • Contact public health (radiological authorities) and emergency services provider for assistance
  • Notify the manufacturer
Exempt license requirements (SAS-Hitech-Xpose)

Pick up unit and send it to Authorized Service Center or factory for repair (nothing more)


General license (competitors) requirements:

The device is assigned to a specific location and cannot be assigned to another location without written notification to the radiation regulatory entity (State or Federal as applicable). If the device is given or transferred to another location, even if it is with the same agency (i.e. if PD Precinct 5 gives it to PD Precinct 6), a transfer of location must be filed by the user (licensee) prior to transfer. Failure to do so is subject to fine and reprimand.

Disposal of General Licensed unit: The user MUST dispose of the device as Hazardous waste and transfer to a license disposal facility. This can be done, under US law by:
  • Exporting the device in accordance with NRC regulations found in 10CFR§110
  • Transfer to a Specific Licensee authorized to receive the device with supporting documentation.
  • Transfer to another General Licensee under strict regulations found in 10CFR§31.5(c)(9) or equivalent Agreement State regulations.
Exempt license requirement (SAS-Hitech-Xpose)
  • Remove label and throw away in regular garbage.
Or for transfer of ownership
  • No restriction. It can be given it to whomever, whenever, wherever required. No paperwork/transfer licenses/authorizations required.

Available Readyscope Lengths

Readyscope Configuration Kit
4 Way Knob Articulation
40" length (1.0m)
Readyscope Configuration Kit
4 Way Knob Articulation
60" length (1.0m)
Readyscope Configuration Kit
4 Way Knob Articulation
80" length (1.0m)
Readyscope Configuration Kit
4 Way Knob Articulation
120" length (3.0m)
Customization available please ask a SASRAD representative.