RAY-2000A personal nuclear radiation detector 
Device overview: RAY-2000A personal dosimeter (ray alarm) is a small smart instrument, the use of new technology made of single-chip, can work in more harsh environments, has a strong anti-interference ability, mainly used to detect χ-ray and γ Ray, from the Han display LCD screen can directly read the ray dose rate: ray cumulative dose: and storage cumulative dose :. In the measurement range, you can fixed or preset alarm threshold, over the threshold or blocked sound and light alarm, to prevent excessive doses, to protect the safety of staff. The instrument low power consumption, multi-function, small size, easy to wear. Widely used in industrial testing, nuclear medicine, customs, civil protection and other systems of daily radiation monitoring to ensure the personal dosimeter user’s personal safety. Product performance: 1, G-M counter by the compensation, low-energy response is improved. 2, Instrument sensitivity, the environment will have a response to the background. 3, For radiation occasions γ, χ ray. 4, Measurement range: Dose rate: 0.01μSv/h – 999.99μSv/h 5 liquid crystal display: 000.01μSv – 999.99μSv/h 5, Energy: <±30% (50Kev – 1.3Mev) 6, Relative basic error: <±10% (137Cs source 662 KeVγ radiation 1mSv/h). 7, Alarm response time: ≤3 seconds. 8, Alarm function: Dose rate threshold alarm: alarm threshold is 0.5,1.0,2.5,10,30,50μSv/h. 9, The instrument has a cumulative dose storage function. After power-off memory data can be permanently saved without loss, can be 100 million storage erase. 10, Battery undervoltage indication: the battery in the upper right corner of the LCD display battery voltage icon, the battery is full of three cells marked about 2.8V-3.2V, the battery power marked two cells about 2.5V-2.8V, the battery marked a battery power of about 2.1 V-2.5V, the battery is not marked grid battery power below 2.1V, in the power state. 11, Working environment requirements: Temperature: -10 – +50 ℃ Humidity: 90% (no condensation) Configuration single: 1, High sensitivity, stable and reliable; 2, Large LCD display, and a Chinese character display, status display at a glance. 3, Measurement of dose rate of radiation, while showing the dose rate and cumulative dose, a variety of alarm function; 4, With cumulative dose storage function, data can be permanently saved without power loss. 5, Low power consumption, small size, easy to carry. 6, Instrument is simple, easy to use. 
We accept all payment methods that listed by Aliexpress 
● Most of the parcels will be shipped via Aliexpress official and EMS shipping method. ● We are not responsible for the delivery time. It normally take 10-25 working days to US EU countries; 20-60 days to rest of the world. ● All items will be dispatched within 1-5 days after payment process is completed. ● We are not responsible for any VAT or custom charges. ● If you do not receive your parcel after 45 days, please contact us and we will check with our agent. If you do not receive after 60(Brazil-90) days, we will issue refund to you. 
For tax, it depends on the customs rules in the destination country. No one is able to control it. We don’t promise it to be tax free, to avoid inconveniences, please check your customs rules before you order, especially for countries who have strict customs rules. But for your parcel, we usually declare it to be a lower value like 50usd. If you have special requests, please do leave your messages when you place order, and tell us how to declare your parcel for you. 
We could never send empty parcel to our buyer, nor could we send parcel with other objects. Please open the parcel in your post officer’s presence. If parcel damaged or empty(stolen), please get the claim request paper from your post office with their stamp. An open-package video is also helpful for you to solve the problem. 
1. Your Feedback is really important to us, please take a few seconds to leave a great feedback if you are satisfied with our product and service, thank you so much !! 2. We always offer the lowest price for best goods and service to you. 3. Please contact us through Aliexpress or Email before leaving neutral(3 stars) or negative(1-2 stars) feedback.We will try our best to solve the problem and leave you a happy shopping mood here. Thank you! If you need more choices, click on the store link below: http://www.aliexpress.com/store/1245851
