Features: A variety of different monitoring interfaces, good visual effects Monitoring mode: set to measure radiation values within a specific time, the data is clear and concise (multiple sets of data can be recorded) Settable alarm value: set limit alarm value according to the environment, and alarm when exceeding the standard! Supports sound and light alarm modes! New appearance: made of wear-resistant and lasting ABS+PC high-quality engineering materials with hanging rope holes, exquisite craftsmanship, full of details Automatic sleep, extended battery life: The sleep time can be set according to needs, and it will enter sleep mode if there is no operation within the set time, extending battery life Lithium direct charging: built-in 850MAH rechargeable lithium battery, up to 6 hours of battery life, cycle charging, environmentally friendly and lasting Specifications: Part Name:Nuclear radiation detector Color: As shown Material: ABS+PC Model: GC-02 Detection radiation type: ionizing radiation (gamma rays, x-rays, etc.) Detector: energy-compensated tube (Geiger counter) Dose current rate: 0.00-10000μSv/h (10mSv/h) Accumulated dose equivalent: 0.00μSv-500.0mSv Energy range: 48keV-15Mevs±30% (for 137Cs-) Language: Chinese, English, Russian, German, Japanese, Portuguese, Spanish, Korean Sensitivity: 80CPM/μSv (for Co-60) Dose unit: μSv/h, μGy/h, mR/h, CPS, CPM Battery capacity: 850mAh Alarm mode: light, sound Size: 106.5x44.5x25mm Package content: 1*Nuclear radiation detector 1*Lanyard 1*Charging cable 1*Instruction manual Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.