One of the most FASTES & ACCURATE Radon Sensor in the World.

We are proud to present the RD200M Radon Sensor.

RD200M is a real time smart radon detector, which has the high sensitivity 1,35 cpm/100Bq/m³.

It´s about 20~30 times more than conventional radon detectors.

Radon Sensor - RD200M - Description

The RD200M is the new innovative fastest radon sensor, which has the highest sensitivity, 81 cph/100 Bq/m³ on the market today. This sensor is optimized for the IAQ monitor, Air purifier, Radon detector and Auto ventilation system. A breakthrough in FTLAB’s patent technology which received a New Excellent Technology certification in 2015, the RD200M uses a dual probe structured pulsed ionization chamber and a special high impedance differential amplifier circuit to offer the highest signal to noise ratio. It effectively detects the secondary charges which were generated from collisions with air and α-particle caused by Radon or Radon’s progeny. The accuracy and precision of the RD200M both are ±10% at 370 Bq/m³, which has been tested by the international standard Radon Testing Laboratory in KTL. Each sensor has been individually calibrated by equipments which are already calibrated to traceable international standards.

Radon Measuring by pulsed ion chamber

Ion Chamber Technology

a-particle that are generated during the radioactive decay of radon and radon progeny create the thousand of +- chage particles by collisioin with air in Figure1. These electirc charges singal i usally very weak and noisy, so it is difficult to amplify the signal using a circiut having a high input impedance. RD200M detects effecitvely these secondary charges uing the bulig in 200cc clas pulsed ionization chamber in Figure 2 and a special amplifier circiut. The improved detection signal is shown in Figure 3. Thus, form the statitical method based on frequency, pulse count and interval of these alpha decay, it can be meaured the average radon concentration indoor.

Technical Data´s RADON SENSOR

RD200 is the first real time Radon Detector in the low price market. The performance of the RD200, sensitivity or response time is closely up to the inspection/research devices, which costs 10 to 30 times more.

RD220M - Radon Sensor

Tomorrow’s Radon Technology, Today.

Pulsed Ionization Chamber type
Sensitivity : 0.81 cph/Bq/m³ (30cph/pCi/l)
Measurement Range : 0.1 ~ 3.700 Bq/m³
*Measurement Range : 0.1 ~ 9.450 Bq/m³ (Optional)
Precision : ± 10 % at 370 Bq/m³ (10pCi/l)
Each sensor individually calibrated
every 10 min data update
Supply voltage & current : DC 12V, 60mA
UART interface for MCU & Arduino
Built in vibration sensor for prevent error detection

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Dimensions of the Radon Sensor

Radon Sensor - Dimension

The 64 metal cap conntected with PCB ground but ionization chmaber is positively biased.

When fixing the sensor, use the 4 pieces (3.5 holes). If it is needed for fixing the ionizaion chamber, use dielectric material like a plastic tie cable.

RD200M size : Φ 60 mm x H:98 mm