CESTSEN Releases GM-16 Wrist Radiation Dosimeter for Continuous Personal Dose Monitoring
Shenzhen, China — CESTSEN has released the GM-16, a wrist-worn wrist radiation dosimeter engineered to keep X-ray and gamma exposure data on the wearer’s body throughout every working shift. Built around an energy-compensated GM tube, the instrument reports instantaneous dose rate, cumulative dose equivalent and working time on a large backlit LCD, and alerts the user the moment any preset threshold is crossed.
Radiation safety programmes have long depended on badge-style dosimeters that are read periodically and are frequently left in lockers between sessions. The GM-16 closes that monitoring gap by turning a personal dosimeter into a device professionals genuinely wear: a compact 45 mm wristwatch weighing under 70 grams, rated IP67 for dust and water ingress, and rated for a full 120 hours of continuous operation on a single charge.
Key Advantages of the GM-16 Wrist Radiation Dosimeter
| Capability |
What It Means in Daily Use |
| Energy-compensated GM tube |
High sensitivity with strong anti-interference performance, so readings stay reliable beside CT gantries, gamma sources and NDT equipment |
| Always-on wearable format |
Dose history travels with the worker instead of sitting in a drawer, delivering far more complete exposure records |
| Triple alarm logic |
Independent, continuously adjustable thresholds for dose rate, cumulative dose and working time give audible and visual warnings before limits are reached |
| Large backlit LCD |
Oversized digits remain legible in dim examination rooms and in bright outdoor field conditions |
| Data transfer to PC |
Magnetic charging head transmits stored measurements to a computer through a data cable for archiving and dose-record reporting |
| Ultra-low power draw |
Under 2 mW typical consumption supports multi-day monitoring without recharging |
Technical Specifications
| Parameter |
Specification |
| Detector |
Energy-compensated GM tube |
| Energy response |
50 keV to 1.3 MeV |
| Dose equivalent rate range |
Hp(0.07) 0.10 µSv/h to 30 mSv/h (customisable on request) |
| Cumulative dose equivalent |
Hp(0.07) 0.01 µSv to 9999 mSv |
| Relative intrinsic error |
≤ ±15% (¹³&sup7;Cs) |
| Display |
Large LCD with backlight, real-time clock and date |
| Data transmission |
USB data cable via magnetic charging head |
| Protection level |
IP67 |
| Dimensions and weight |
Φ45 mm × 20 mm, under 70 g (excluding strap) |
| Operating environment |
-10°C to +50°C, humidity ≤ 95% (no condensation at 30°C) |
| Battery life |
Approximately 120 hours of continuous use per full charge |
Where the Wrist Dosimeter Fits
- Medical radiology: CT suites, X-ray diagnostics, gamma knife and cobalt therapy units
- Industrial NDT: radiographic inspection crews working with X-ray generators and gamma projectors
- Nuclear power and research: controlled-area personnel monitoring and supervised-zone entry
- Radioisotope laboratories: irradiation facilities, tracer studies and isotope production lines
- Emergency response and civil defence: field dosimetry during incident assessment and drills
Why Safety Managers Choose the GM-16
Continuous rather than retrospective exposure data. Because the unit is worn continuously, dose accumulates in real time on the device itself. Users can also enable a reset-on-start option to estimate the dose of a single procedure, task or shift, which is far more actionable than a monthly badge reading.
Alarms that act before the limit, not after. Independently adjustable thresholds for dose rate, cumulative dose and working time mean a worker is warned the instant a source is unexpectedly energised, a shield is misaligned, or a time-limited task runs long.
Measurement discipline built in. A relative intrinsic error of ≤ ±15% against ¹³&sup7;Cs, combined with an energy response spanning 50 keV to 1.3 MeV, keeps readings consistent across the radiation qualities encountered in medical and industrial settings.
Field-ready construction. IP67 sealing, a 45 mm case and a weight below 70 grams mean the dosimeter survives sweat, dust, rain and daily knocks while remaining comfortable enough to be worn unnoticed.
Availability and Customisation
The GM-16 wrist radiation dosimeter is available now from CESTSEN with a minimum order quantity of one piece and typical delivery within 7 to 15 working days. Supply capacity stands at 500 pieces per month, with shipment in export-grade cartons with foam protection and payment by T/T. Modified dose rate ranges, dedicated alarm thresholds, branded packaging and OEM configurations are available on request.
CESTSEN instruments are supported by CE, CMA and CNAS certification, and each unit is calibrated and tested before it leaves the Shenzhen production facility. Distributors, hospital procurement teams and radiation safety officers who need a wearable dosimeter programme can contact the CESTSEN sales team for technical consultation, samples and a specification review tailored to their working environment.
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