TESLA Radon Probe "TSRE1"

Item number: TSRE1

892,50 €

including 19% VAT. , no shipping costs

Shipping time: 10 - 11 workdays


IP Radon Probe TSRE1

  • Continuous monitor of radon volume activity: electronic measuring radon concentration 20 - 1M Bq/m3
  • Measurement uncertainty: < 18% at 300 Bq/m3 per 1 hour; < 4% at 300 Bq/m3 per 24 hour
  • Accompanying measurements: temperature (-20 ° C to + 60 ° C), humidity (10% - 90%), energy spectrum
  • Current radon concentrations: short-term (hourly average) and long-term (daily average)
  • Long-term records: results stored in the internal memory for period longer than 2 years; data export CSV, HTML, TAB


TSR3 is designed for continuous measuring of radon concentrations in buildings with ethernet data transmission.
IP probe basis is a measuring chamber with a semiconductor detector. Radon enters the chamber by diffusion through the input filter on the bottom of probe. The probe measures in autonomous and time continuous way. It processes results every 4-minute intervals and from this counts short-term moving average of radon concentration ( 1 hour moving average - average of 15 4-minute process intervals). It also counts long-term moving average of radon concentration ( 24 hours moving average). The probe saves time records of these radon concentration values including values of humidity and temperature within its internal memory (typically at an interval of 1 hour). Next saved value is time record of measuring energy spectrum (typically at an interval of 12 hours). The probe is random for location in measured place, but generally it is put on the bottom of the probe. Bottom of the probe cannot be covered. Due to demand of permanent power supply via power adapter 230VAC/5VDC or via PoE the radon probe is mainly determinate for fixed installation and long term monitoring of radon. In case of sudden power outage probe back up running of real time for correct date and time of records for case of switch it on again.

Probe configuration, data viewing and downloading from probe is possible to realize by connected PC (notebook, tablet, smartphone) with installed some internet browser (Google Chrome, Mozilla Firefox, etc.). PC can be connected with probe by cable (UTP cable) or wirelessly (Wi-Fi). PC can be connected with probe directly or via LAN, WLAN networks (router) or via INTERNET network (router + modem). The probe includes internal web server which sends web pages with results to your internet browser. Web pages are in English or Czech. So there isn´t necessary to install any special application for control of probe and there is possible to use various operation system (OS) of PC. Three levels of user web access are defined: user, administrator and expert. Measured results are saved into internal memory of probe during up to 2 years. Saved data in memory is possible to export to files with extension .CSV, .HTML and .TAB for further processing in any text editor and in any spreadsheets. For easy graphical display and advance analyze of files.

IP probe also suitable for easy software integration to various and large network systems of third parties (smart house, industrial systems, etc.) due to standard communication protocol HTTP (GET,POST), SNMP v.2, MODBUS which allows access to current measuring data in probe. Description of protocols, MIB tables and MODBUS regsters are free downloaded on website: http://www.tesla.cz/en/ke-stazeni/ .
IP probe along with IP actuator and climatic equipment (e.g. fan) can be use in radon regulating system where probe sends command to actuator for switch fan on in case of crossing of adjusting level of radon concentration in room.

Scope of Delivery

  • TSRE 1 Radon Probe
  • Power adapter 230VAC/5VDC
  • UTP cable 1m
  • Operation Manual

Technical data

Average measurement sensitivity

0,25 count/hour/Bq.m-3

(method RaA+RaC; 15°C ÷ 30°C; rel. hum. 20% ÷ 40%)

Measuring range

MDA - 100 000 Bq/m3; MDA = 100 Bq/m3 per 1 hour or 20 Bq/m3 per 24 hours

Measurement uncertainty

< 13% at 300 Bq/m3 per 1 hour; < 3% at 300 Bq/m3 per 24 hour

Measuring chamber capacity

0,176 dm3

Response rate

< 30 minutes (RaA); < 3 hours (RaA + RaC)

Radon concentration results display

short-term (1 hour moving average)

long-term (24 hours moving average)

Measuring algorithm

quicker, less sensitive (calculated from RaA)
slower, more sensitive (calculated form RaA + RaC)

Measuring relative humidity range

10 - 90 %

Measuring temperature range

- 20 to + 60 °C

Wired interface

Ethernet 10/100 Base-T (RJ45)

Wireless interface

WiFi 802.11 b/g/n 2,4 GHz

Records saving interval

1- 255 minutes, default 1 hour

Results memory capacity in probe

> 2 year (hours records)


Power adapter 230VAC/5VDC or PoE splitter

Access protocol

HTTP, WEB interface, IPv.4

Advances access protocol


Recommended internet browsers

Google Chrome, Mozilla Firefox


English, Czech


User, Administrator, Expert


Ø 80 x 175 mm


Type approval certificate


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