... (rate) Alarm / personal dosimeter / radiation meter Model: XR51DP802i (spot advantage) Library Number: M164911 is a user-friendly design, enhanced monitoring device ... of this instrument, the instrument is simple, easy to use 2. cumulative dose and dose rate measurements show 3. ... (μSv or mSV)? international standard unit 20. Power supply: Use a 7 batteries, low power, the end of measurement can be ...