Durridge RAD7 portable environmental radon detector soil radon air radon water radon radon detector

The portable radon meter RAD7 is a portable radon continuous monitor produced by the American company DURRIDGE. It can not only measure radon in the air, but also can measure radon in water and soil at the same time with the optional soil probe and water probe. The following is a detailed introduction, standard configuration list and optional accessories of the radon meter.
The American DURRIDGE Company’s RAD7 alpha spectrum radon detector is a sniffing and continuously operating portable detector with short response and recovery time on the market. The operation is simple, just follow the prompts of the microcomputer, and the measured radon and thoron gas concentrations will be displayed with spectrum curves, and the data can be output with an infrared printer. The drying device reduces the humidity of the sampled air and improves the accuracy of the test results. You can set up the beeps for radon and thoron counts to learn about high pollution areas. A variety of accessories are available to measure radon in the air, soil and water.
It only takes 1 hour to measure the US EPA action level concentration of 4 pCi/L.
According to the “Measurement Law of the People’s Republic of China” and relevant regulations and technical requirements, the RAD7 electronic radon meter of the American company DURRIDGE has been certified and obtained the meter type approval certificate of the People’s Republic of China. Type approval number PA 2006-C262.
American DURRIDGE RAD7 radon meter product features:
The electronic radon detector has a very fast response and a short recovery time. It is a portable detector that integrates continuous monitoring of radon gas and detection of radon radiation sources.
The operation is simple, just follow the prompts of the microcomputer, the measured radon and thorium are displayed as spectrum curves, and the data can be output with an infrared printer.
Various measurements: can measure radon in air, water and soil
Provides fast, high sensitivity (0.5cpm/ pCi/L) and precise readings
Meets the operating standard of 4pCi/L per hour specified by the U.S. EPA
Reduce the humidity of the sampled air through a drying device to improve the accuracy of test results
Test results can be displayed on the computer, printed out and downloaded
Lightweight and durable, comes with a sturdy carrying case
Equipped with built-in sampling pump
Equipped with RS-232 and USB serial ports
Chinese data download and analysis software
American DURRIDGE RAD7 radon meter standard configuration:

RAD-7 host, power cord, shoulder strap and key, printer, 3 rolls of printing paper, printer adapter, 6 air inlet filters, 1 dust filter, 3 vinyl tubes, large drying tube, small drying tube , desiccant, built-in rechargeable battery, PC data software and computer connection cable, Chinese and English user manual.

Optional accessories:
RAD AQUA continuous water radon accessories, RAD H2O water radon accessories, WATER PROBE water
Radon gas detector, RADIUM PROBE radium detector, DRYSTIK drying tube moisture converter, EXTENDER range
Amplifier, SOIL PROBE soil rod and SOIL COVER accessories for measuring surface radon precipitation
Before starting the measurement, place the RAD7 in a dry, radon-free atmosphere to clean the instrument gas circuit for a period of time. During the cleaning process, use a large laboratory drying cylinder. And the small drying stick does the actual measuring. First connect the filter to the air inlet port of RAD7 (refer to the RAD7 operation manual), and then connect the large drying cylinder to the filter. After cleaning the RAD7 air path in clean and dry air for 10 minutes, press the [MENU] key, then press the [ENTER] key twice to enter the status window, and press the right arrow key twice to view Check the relative humidity. If the relative humidity has not dropped to 6%, clean it for a while. In order to effectively dry, after the first 10 minutes of air line cleaning, connect the air outlet of RAD7 to the inlet of the drying cylinder to form a closed loop. This allows continuous drying of the RAD7 without the need to introduce fresh air.
If the RAD7 has not been used for a period of time, or the hose connecting the air inlet and outlet has been disconnected, it will take longer to dry the air path, at least 30 minutes. Once the drying process is completed, it only takes 10 minutes to clean the gas line during each measurement.