Features 1、TECHNICAL PARAMETERS: GC‑01 counter nuclear radiation detector, built in sensor, possess fast response time, high accuracy, gamma, beta and X ray detection. Cumulative dose equivalent 0.00uSv‑500.0mSv. Energy range 48KeV‑1.5MeV ≤±30%(for 137CS‑γ) 2、REAL TIME MONITORING: Nuclear radiation detector has powerful functions, multi function page real time detection, LCD display, interface data at a glance 3、HIGH SENSITIVITY: The nuclear radiation detector use high tech tubes, which greatly improve the sensitivity of the detection of radioactive radiation 4、3 MODES: You can set the reminder functions of the nuclear radiation detector, support sound, flash, vibration three modes, you can choose according to your own habits 5、VARIOUS FEATURES: The counter also has a variety of other Settings, such as system clock settings and unit settings, and language changes, which you can operate in English(default) or Chinese for easy one hand operating Specification Item Type: Nuclear Radiation Detector Model: GC-01 Dimension: Approx. 120 x 78 x 27mm / 4.72 x 3.07 x 1.06in Power Supply: 1 x Built in lithium ion battery 1100mAh Dose Rate: 0.00-10000μSv/h (10mSv/h) Energy Range: 48keV-1.5Mev ≤ ±30% (for 137Cs-) Measurement Units: μSv/h, μGy/h, mR/h, cps, cpm switchable Detectable Radiation Types: γ, x, β rays Detector: Energy compensated tube(technology tube) Language: Chinese and English switchable Detectable Scenarios: X ray or CT, tile or marble, industrial radiation, food or metal Color: Blue Package List 1 x Radiation Detector 1 x USB Cable 1 x User Manual