... .made by ourself 2.price cheap 3.Japanse or English version 1. Overview LK-3600 personal radiation alarm dosimeter is a ... . Features1,High sensitivity, stable and reliable.2,Super LCD English, Japanese display functions, state display at a glance.3,When measuring ... Certificate1Warranty Card1 LK-3600 Personal Nuclear Radiation Dosimeter(ENGLISH OR JAPANESE VERSION)