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Gamma and X-Rays radiation monitor

The ERiS2-R is a small and light-weight meter for detecting and measuring of gamma and X-Rays radiation.

Internal detector.
Two different detectors are available to adjust as much as possible to the needs of the user. You can choose between a model with max. of 10 mSv/h or 100 mSv/h.
Rechargeable Ion-Li battery
Internal rechargeable Ion-Lithium battery of great capacity and with multiple recharge options (PC, electric network, vehicles, power-bank, etc).
Small and lightweight
Compact instrument, of reduced dimensions and only 220 g.
Data memory.
Manual and automatic recording of measurement values, with date, time, parameters, etc.
USB connectivity
It has a USB port for connection to the PC for downloading data. It also allows recharging the internal battery.
For downloading stored values, and data management.
User friendly
The navigation through the menus is very intuitive and it has the possibility to choose language (Spanish or English). That makes it a very easy to use device.
Several measurement modes.
Rate mode for the measurement of the current radiation, freezing mode of the maximum value reached, search mode, and dosimeter mode with accumulation of dose and time.
Quick response.
Stable measurement combined with rapid response to a sudden variation of the radiation field greater than 3 times the standard deviation of the mean value.
Auto diagnosis.
Continuous checking of the status of the detector, the battery level, and alarm levels.
Adjusted and calibrated.
After manufacture, each instrument is adjusted and calibrated individually for ambient equivalent dose H*(10), with the reference radioisotope Cs137. A complete traceable Certificate is delivered with the instrument.
It is delivered with a carrying case type shoulder bag, USB cable, software, user manual and certificate of manufacturer calibration. Optional accessories include a charger to connect to the vehicle, etc.

The ERiS2-R10 and ERiS2-R100 are an evolution of the Eris1R model. Specifically the ERiS2-R100 has the same detector, therefore of the same sensitivity and range of measurement up to 100 mSv/h than the Eris1R. In addition, there is another model, the ERiS2-R10, which has a detector with more sensitivity but with a maximum range of 10 mSv/h.

A complex calculation system performs all the necessary operations for the conversion of the detected events to the scientific unit (µSv/h, µSv) that the user selects by applying the corresponding factors. In addition, automatically applies the dead time correction characteristic of the Geiger detectors.

The ERiS2 continuously checks the alarm levels, the battery level, the status of the detector, etc., immediately notifying any incident or anomaly.

The ERiS2 allows different types of measurement depending on the application. The rate mode has a dynamic time constant, that is, the counting time is fixed as long as the standard deviation of the mean is not exceeded 3 times, in which case, an automatic update of the measurement will occur. This makes the measurements are stable but in case the level of radiation changes, the response of the instrument will be fast.

Another interesting function is the search function, which shows a graph indicating the pulses detected with a small time constant of 5 seconds, in such that it allows to see intuitively the detected events.

The ERiS2 allows to save the measurement values , which include the date, time, measurements, unit, etc.. The recording can be manually, or automatically with configurable sampling times. A simple software allows the loading and storage of data on a PC.


Model Reference Description
ERiS2-R10 LAM048V01

Model with internal gamma and Xrays detector up to 10 mSv/h

Quote request
ERiS2-R100 LAM048V02

Model with internal gamma and Xrays detector up to 100 mSv/h

Quote request


ERIS2-R10 ERIS2-R100
Batteries charger
USB communication cable
User's manual (in USB drive)
Data download software (in USB drive)
Calibration Certificate (ISO9001)


ERIS2-R10 ERIS2-R100
Memory Record of date, time, measurement, parameters, status, etc. Selection of manual, automatic or timer. Capacity for approx. 8000 memory locations.
Measurement units rate (µSv/h, mSv/h) and accumulated dose witn accumulated time.
Connectivity -USB 2.0, Mini-B type connector, for communication and battery recharge.
Power High capacity internal rechargeable Lithium-Ion battery. Autonomy depends on the operational options. Maximum autonomy without recharge of approx. 250 hours (measuring background).
Response time Dynamic, minimum 2 s, 3-sigma criterion (standard deviation of the mean).
Pushbuttons Cover and high quality membrane keys.
LED Bicolor, alarm indication (red), and battery recharge (blue).
Display Graphic LCD, with backlight controlled by keyboard.
Audio Piezoelectric, indication of alarms. Controlled by keyboard.
Case ABS. IP51.
Audio Piezoelectric, indication of alarms. Controlled by keyboard.
Dimensions 11.7 x 7.2 x 2.5 cm.
Weight 220 g.
Temperature range -10ºC to +50ºC
Humidity range max. 90% RH (no condensed).


ERIS2-R10 ERIS2-R100
Detector type Energy Compensated Geiger-Müller detector
Measuring type Gamma and X-Rays, H*(10). Calibration related to Cs137 (662 KeV)
Gamma sensibility
(related to Cs137)
approx. 1700 cps/mSv/h approx. 700 cps/mSv/h
Rate indication range 0.01 µSv/h - 10.0 mSv/h 0.01 µSv/h - 100 mSv/h
Optimal Measuring range 0.01 µSv/h - 10 mSv/h 0.1 µSv/h - 100 mSv/h
Accumulated dose indication range 0.01 µSv - 1 Sv
Optimal Energy range from 35 KeV from 40 KeV
Energy dependence
(related to Cs137)
max deviation ± 20% in the compensated energy range (relative to Cs137).
greater than ± 20% outside the compensated energy range (up to 10MeV)
Accuracy Max deviation ±15% over the entire optimum measurement range (relative to Cs137).


ERIS2-R10 ERIS2-R100
Password for changing parameters YES
Language selection YES, Spanish or English
Dead time correction YES
Measuring units Sv/h, Sv
Self-test with indication of alarms, detector error, low battery, and out of range YES
Dinamic time constant, 3-Sigma criteria YES
Display maximum YES
"Search" function YES
data memory YES
Data Download software YES

USB communication cable

Communication cable

Included with ERiS2 models

Standard battery charger

Standard battery charger for ERiS2, from main power 100-220VAC

Included with ERiS2 models

Batteries charger, for vehicles

Charger of ERiS2 batteries, for charging in vehicle with lighter adapter (12V)

Case for ERiS2

Protection and transport case for ERiS2, with strap

This table shows a comparative between instruments for measuring radioactive contamination

Gamma and X-Rays H*(10) measurement
Alpha, Beta, Gamma contamination measurement with external sondes
Internal detector Optional Optional Optional
External sondes Optional Optional Optional
Stationary Optional Optional
Wall holder Optional Optional
Rechargeable battery
External power
Data store Optional
Data Download/Register software Optional

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