CRM-510LPB (Blind)

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Low Power Blind Continuous Radon Monitor


Dynamic Range 1-200 pCi/l
Units pCi/l or Bq/m³
Sensitivity 0.350 CPM per pCi/l
Linearity 1-200 pCi/l (<10%)< /td>
Temperature Range 50-104 ºF
Barometric Pressure Range 0-38 inHg
Relative Humidity Range 0-90%
Sampling Mode Passive Air Diffusion
Power Batteries / 1-year
Data Storage 192 Hours (8 Days)
External Output Serial RS-232C

AARST-NRPP Approved: BC-463

The femto-TECH, INC. model CRM-510LPB is a precision airborne alpha radiation detection instrument based on the same field proven pulsed ion chamber technology of previous models R210F and RS410F. Due to a unique patented electrometer and open grid probe design, the model CRM-510LPB is highly suited for a wide range of radon measurement applications. Because of the low current requirements of the electrometer detector and on-board computer, the model CRM-510LPB is truly a portable self-contained continuous radon monitor that can read and store test data for eight days of stand-alone operation. In this "passive" mode of operation the model CRM-510LPB is uniquely suited for screening and follow-up type testing.

The full function computer system incorporated in the model CRM-510LPB provides the operator with a highly flexible radon detection instrument and data logger operating system, while still maintaining the simplicity of operation for which femto-TECH instruments are noted. In addition to the measurement and storage of radon data, the highly sophisticated on-chip peripheral capabilities of the micro controller (MCU) used in the CRM-510LPB provide for the measurement and storage of temperature, barometric pressure, and relative humidity. This multidimensional data acquisition capability provides the tester with a unique data base for evaluating the validity of short term radon measurements.

Software & Results

Paired with our provided software or modem, the user can conduct a protocol test and then send the data directly to our partnered third-party laboratory, Air Chek. Our Blind Edition software is available for both Windows & Android operating systems. Click HERE or HERE to learn more about the software.


femto-TECH devices have been designed to meet the requirements of Professionals who need reliable measurements, but also need additional information to assist them in interpreting results.

Anti-Tamper Motion Detector


With the integrated tilt sensor, you can tell if any movement or tampering has been detected on the hour of it's detection.

Real-Time Radon Measurements

Observe the radon average/rate on the LCD screen while the test is being performed!

Fully responsive

Cutting Edge Sensitivity

The CRM-510LPB outperfoms every solid-state device on the market. It's like comparing a microscope to a magnifying glass.

Keyed Security Lock

A physical key is required to run/manage the CRM-510LPB, meaning the test cannot be stopped or tampered with while you are away.

Units of Measurement

Your choice!

Select between US & EU standards of measurement for radon, temperature, and barometric pressure.

Remote Report Generation

Via 3rd-Party Certified Lab

The CRM-510LPB works with Air Chek's Blind CRM Program. Simply run a test, and then upload the data to Air Chek via supplied modem or our Blind Software.

CRM-510LP Device Training

This free online course includes everything regarding the usage of this CRM device.

Downloadable certificate proving completion of the course is issued upon passing a 20 question test with 75% or more.

Related items


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CRM-510LP with added CO sensor

613 Case

Case for the CRM-510 model line

Government Affiliates

Industry Affiliates


Contact Us

25 Eagle Court,
Carlisle, OH 45005

Phone: (+937) 746-4427
Fax: (+937) 746-9134

Mon - Thurs | 8am - 4pm
Friday | 8am - 3pm