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Free shipping FJ2000 handheld professional nuclear radiation detector high range electronic geiger counter radiation detector

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In stock
Sale Price: US $218.00
45 days Money back
45 days Money back Returns accepted if product not as described, buyer pays return shipping; or keep the product & agree refund with seller.
On-time Delivery
On-time Delivery
Guarantees: On-time Delivery 60 days


FJ2000 personal nuclear radiation dosimeter Overview: FJ-2000 personal dosimeter is an intelligent pocket instrument, which uses a new type of powerful single-chip technology, mainly used to monitor the X-ray and γ-ray, direct read personal dose and personal dose rate; in the measurement range, Can be fixed or preset alarm threshold, over the threshold or blocked sound and light alarm, to prevent overdose, to protect the safety of staff. It is widely used in the field of nondestructive testing, nuclear power station, nuclear submarine, isotope application and hospital cobalt treatment, etc. The instrument is widely used in non-destructive testing, nuclear power station, nuclear submarine, isotope application and hospital cobalt treatment. Instrument features: 1. High sensitivity, stable and reliable; 2. While measuring individual doses and personal dose rate, a variety of alarm functions; 3. Low power consumption, small size, easy to carry. Working principle: The detector outputs the pulse sequence after the irradiation of γ-ray and γ-ray. This pulse corresponds to the γ-ray dose rate. After input shaping, a pulse of standard amplitude is sent to the MCU. The MCU performs all the digital processing functions. Display, super-valve signal input sound and light circuit alarm. The circuit operates as follows: Detector – Input Molding – Microcontroller – Display ↑ ↓ High voltage ← Two 1.5V batteries → Alarm 1. Detector: With the high sensitivity of the GM counter, through the energy compensation, reducing the high and low energy response differences. The gamma-ray tube is converted into an electric pulse signal and input to the single-chip circuit. 2. Single Chip Microcomputer: The single chip microcomputer uses the 8-bit single-chip microcomputer with liquid crystal display. It is characterized by high speed, low voltage, low power consumption, single power supply, bus clock 0 ~ 4MHz and LCD driver 4 × 32. Single-chip computer to complete all the data processing functions: pulse count, calculated display, time base occurs, the output alarm signal. 3. Display: The monitor is equipped with a 4 back-pole segment LCD display, display 4 digits and some characters, display clear. 4. Alarm: alarm circuit by the LED and buzzer composition, more than the threshold, the sound and flash. 5. Buttons: There are two buttons on the instrument. One is the working switch, control the high-pressure work, open, the high-pressure output of the work of the supply counter, the switch is turned off when the “ON” display, “, Touch this button, you can switch display” DOSE “and” RATE “. 6. High-voltage power supply: two 1.5V dry battery supply DC converter, generating voltage, supply counter work. Specifications: 1. Detector: GM counter tube, measuring Χ-ray and γ-ray; 2. Display range: 4-bit LCD; Cumulative dose equivalent: Hp (10) 0.0μsv ~ 99.99msv; Measurement equivalent rate: Hp (10) 0.1μsv/h ~ 99.99msv/h; 3. Response time: 3.6S – 36S; 4. Metering rate response: <±20% (1μsv/h ~ 99.99msv/h) 5. Energy response: <±30% (50KeV ~ 1.3MeV) 6. Relative inherent error: <±20% (137Cs) 7. Alarm function and alarm threshold: Metering rate and cumulative dose can be set in the measurement range alarm threshold. The instrument is equipped with a fixed alarm threshold is as follows: a. cumulative dose: for each additional 0.1usv, ring a short sound, light once; ≥50μsv, sound and light alarm for 5 seconds, “ALARM” display. b. measurement rate: ≥25μsv/h, sound and light alarm about 6 seconds, “ALARM” display. c. blocking alarm: When the count tube count is blocked, the continuous alarm non-stop, “ALARM” display. Alarm sound intensity at 30cm about 80 decibels. 8. Battery undervoltage indication: battery voltage <2.7 ± 0.05V, the instrument displays the battery undervoltage symbol “LOBAT”. Undervoltage symbols appear in the lower radiation sites can still work 24 hours or more. 9. Battery and power consumption: AAA type 1.5V alkaline battery two (7 batteries), the environment of this low, power consumption <2mw, continuous use 720 hours. 10. Temperature characteristics: <± 10%(-10°C – +50°C); 11. Temperature characteristics: <± 10% (95%RH, +35%); 12. Dimensions: 55 (width)*92 (length)*18 (thickness); 13. Weight: <75 grams (including battery) <98 grams. Note: Do not use the instrument for a long time, the battery must be removed, so as not to damage the instrument. Reference: 1. Recommended by ICRP60 Report. Dose limit for radiological professionals: effective dose of 5 years 100msv, the average annual 20msv, but any year can not exceed 50msv. Dosage limits for residents are: 1msv per year (if the average for five consecutive years does not exceed 1msv, individual years may be slightly higher). 2. The relationship between irradiation dose and dose equivalent can be expressed as follows: 1sv = 100rem = 100R 1μsv/h = 0.1R/h 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

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Shipping Company Shipping Cost Estimated Delivery Time
DHL 3 - 7 days
UPS Expedited 3 - 7 days
EMS 5 - 14 days
Post Air Mail Free Shipping 15 - 45 days
Return Policy If the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller.

N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.
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Price:  US $218.00 / piece