RaySafe i3 Real-time Dose Monitoring System

Home/Radiation Safety, Radiology, RAYSAFE, Real-time Personal Dosimetry/RaySafe i3 Real-time Dose Monitoring System

RaySafe i3 Real-time Dose Monitoring System

Features and benefits
RaySafe i3 offers the following important benefits
Replaceable battery prolonged life cycle
The new radiation dosimeter has a replaceable battery, which means that longevity depends solely on wear and tear.
Better immunity to interference
RaySafe i2 dosimeters are sensitive to certain cell phone signals. The new real-time dosimeter is greatly improved in this regard no interference has been observed during heavy testing.
Automatic sleep mode
Only active dosimeters will populate the screen, regardless of where the inactive units are stored.
Enhanced measurement performance
Wider angular response means that radiation coming from below and from the sides is measured in a predictable fashion. Lowered dose rate threshold results in improved response when used with the latest low dose X-ray machines.

Detailed comparison

RaySafe i3 Dosimeter
RaySafe i2 Dosimeter
Radio communication
Frequency depending on region
Compatible with existing real-time dosimetry products
Energy saving features
Longer transmission intervals when not irradiated,
Automatic sleep mode
Longer transmission intervals when not irradiated
PC connectivity
Micro USB connector
USB docking cradle
User replaceable, non rechargeable
Non replaceable, non rechargeable
Pocket clip
Plastic clip, user replaceable
Metal clip, non replaceable
Visual feedback
LED error and wake up indication
LED error indication
Energy range
N40 – N150
N40 – N120
Dose rate uncertainty
±10% or 10 µSv/h (40 µSv/h – 150 mSv/h)
±20% (150 mSv/h – 300 mSv/h)
±40% (300 mSv/h – 500 mSv/h)
±10% (40 µSv/h – 150 mSv/h)
±20% (150 mSv/h – 300 mSv/h)
Angular dependency
< 5% (0° – 10°)
< 30% (10° – 60°)
+30% to -100% (60° – 90°)
< 5% (0° – 5°)
< 30% (5° – 50°)
+200% to -100% (50° – 90°)
Expected longevity
Up to 10 years
3-5 years, until the battery runs out



The RaySafe i3 is an active dosimetry system that provides real-time insights about radiation exposure, helping medical staff and physicians evaluate and directly adjust their behaviors and more effectively use all the radiation reduction solutions provided in the room.