Features
- small, handy, PTB-approved and easy to operate dose rate meter for the measurement of gamma radiation and X-rays
 - measurand: ambient dose rate equivalent Ḣ*(10) and ambient dose equivalent H*(10) (local dose)
 - detector: energy compensated GM tube
 - large, digital indication of measured values on LC-display (backlit)
 - selectable simultaneous or separate indication of dose and dose rate,
additionally quasi-analog indication of dose rate (logarithmic bar graph) - 4 preset dose rate alarm thresholds and 4 preset dose alarm thresholds
(on demand adjustment of customised alarm thresholds) - switchable acoustic single-pulse indication
 - automatic and continuous storage of the dose into a
non-volatile memory - storage of the dose and of set parameters even during battery change
 - permanent self test
 - designed for rough use, housing made of aluminium,
protection class IP54 (splashproof) - menu-driven user navigation
 - supplied together with a robust nylon bag
 
PLEASE NOTE:  Detecting the personal dose requires a measuring
                            instrument with the measurand Hp(10).
Datasheet:
DB_GammaTwin_en_19092013.pdf