RAD7
RAD7
Durridge
Professional Electronic Radon Detector with Real-Time Monitoring and Spectral Analysis
RAD7 Radon Detector
The DURRIDGE RAD7 is a truly versatile radon and thoron detector used by research scientists and professionals worldwide. Its mature and yet still state-of-the-art design match or exceed those of the most expensive radon measurement devices in the world. At the same time, it incorporates a number of exclusive features that are found in no other radon detector, regardless of price.
Rugged radon detector
The RAD7 is a sophisticated measuring instrument widely used in laboratories and research work around the globe. It is used by professional radon testers, mitigators and home inspectors, as well as by research scientists studying groundwater, mines, deserts, the ocean and volcanoes at extreme temperature. A rugged carrying case encloses the instrument, ensuring reliability in the field.
The RAD7 is the easiest electronic radon detector to use, with preprogrammed setups for common tasks. The instrument comes complete with a built-in air pump, rechargeable batteries, and a detachable wireless printer. The RAD7 can store large amounts of radon data for later printing and/or for graphing and analysis on a computer using DURRIDGE's powerful and free CAPTURE software.
Rapid thoron measurements
The RAD7 is a Sniffer that detects the 3-minute alpha decay of a radon daughter, without interference from other radiations. It also detects the instantaneous alpha decay of a thoron daughter for rapid thoron measurements. The instrument can sniff for entry points and radon gushers, and it recovers from high radon exposures in minutes. The RAD7 is also a Continuous Radon Monitor which can measure the EPA action level of 4 pCi/L, with 10% standard deviation, in under two hours. At the end of each run, the detector prints out a complete report.
The included accessories are sufficient for the measurement of radon and thoron in air. Additional, optional accessories are available for the measurement of radon in soil gas and water, for the measurement of the emission of radon from surfaces, objects and bulk materials, and for other specialised applications.
Click below to request a quote for this item. Or for product advice, stock and lead time enquiries call our team on 0330 313 3220.
| Attribute | Value |
|---|---|
| Modes Of Operation |
SNIFF Rapid response and rapid recovery radon measurement. NORMAL High sensitivity radon measurement. AUTO Automatic switch from SNIFF to NORMAL after three hours run. THORON Radon and thoron measured simultaneously and independently. GRAB Analysis of air “grabbed” from a discrete sample. WAT Automatic analysis of water samples with optional RAD H2O accessory. |
| Measurements |
Radon in air with Sniff protocol for quick, spot reading. Thoron in air for searching for radon entry points. Radon in air 1-day, 2-day or weeks protocol for long term measurement. Radon in water batch samples with optional RAD H2O and Big Bottle System accessories. Continuous radon in water with optional RAD AQUA and Radon-in-Water Probe accessories. Radon in soil gas with optional Soil Gas Probe and DRYSTIK accessories. Radon emission from soil and hard surfaces with optional Surface Emission Chamber accessory. Bulk radon emission from bulk materials and objects with optional Bulk Emission Chamber accessory. |
| Data Storage | 1,000 records, each with 23 fields of data. Log of printer output also stored. |
| Sample Pumping | Built-in pump draws sample from chosen sampling point. Flow rate typically 800 mL/min |
| Print Output | Short, Medium, or Long format data printed after each cycle. Run summary printed at end of run, including averages and spectrum |
| Connectivity | RS232 serial port, full remote control implemented in CAPTURE Software. RS-232 port up to 19,200 baud rate. USB adaptor is included with every RAD7. Optional serial to Bluetooth adaptor for wireless PC connectivity. |
| Audio Output |
GEIGER Tone beeps for radon and thoron counts CHIME Chime only at the end of each cycle, otherwise silent OFF No sound |
| Tamper Resistance | TEST LOCK command locks keypad to secure against tampering |
| Principle of Operation |
Electrostatic collection of alpha-emitters with spectral analysis. Passivated Ion-implanted Planar Silicon detector. SNIFF mode counts polonium-218 decays. NORMAL mode counts both polonium 218 and polonium 214 decays. |
| Built in Air Pump | Nominal 1 liter/minute flow rate. Inlet and outlet Luer connectors. |
| Measurement Accuracy | +/-5% absolute accuracy, 0% - 100% RH |
| Nominal Sensitivity |
SNIFF mode, 0.25 cpm/(pCi/L), 0.0068 cpm/(Bq/m3) NORMAL mode, 0.50 cpm/(pCi/L), 0.014 cpm/(Bq/m3) |
| Radon Concentration Range | 0.1 - 20,000 pCi/L (4 - 750,000 Bq/m3) |
| Intrinsic Background | 0.005 pCi/L (0.2 Bq/m3) or less, for the life of the instrument |
| Recovery Time | Residual activity in Sniff mode drops by factor of 1,000 in 30 minutes |
| Operating Ranges |
Temperature: 32° - 113°F (0° - 45° C) Humidity: 0% - 100%, non-condensing |
| Cycle Range |
User controllable number of cycles, from 1 to 99 to unlimited, per run. User controllable cycle time, from 2 minutes to 24 hours |
| Capture Software |
Compatible with Microsoft Windows 7 through 10, and macOS Automatic RAD7 connection and data download Graphs radon, thoron, temperature and humidity over time Automatic humidity correction Statistical analysis tools track concentration averages and uncertainties Chart Recorder mode provides real-time RAD7 status monitoring Control RAD7 operations from computer via direct or remote connection Automatic calculation and display of radon in water with optional RAD H2O, RAD AQUA, and Water Probe accessories Automatic combination of data from multiple RAD7s |
| Dimensions | 11.5" x 8.5" x 11" (29.5 cm x 21.5 cm x 27.9 cm) |
| Weight | 9.6 pounds (4.35 kg) |
| Display | 2 line x 16 character alpha-numeric display |
| Case Material | High density polyethylene |
| Infrared Printer | Omniprint OM1000 Wireless Infrared Printer included |
| Battery | 24 hours in SNIFF mode; 72 hours in Monitor mode |
| Power Supply | 11-15V DC (12V nominal) @ 1.25A, center pin positive, or included internal EnerSys sealed lead acid rechargeable battery pack (6V nominal, 30Wh, 5Ah) |
| Comes With |
The RAD7 comes complete with the following components and accessories:
|
| Attribute | Value |
|---|---|
| Data Sheet | Click here to view |
