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Laboratory radiometer RMD Touch

40 years of UV experience and consistent product development enable the optimal performance and intuitive operation of the RMD Touch laboratory radiometer.

This incorporates the latest technologies such as capacitive touch displays, precision ADCs, data storage, remote update capability and much more. This makes the RMD Touch one of the most powerful multichannel radiometers on the market with superior features such as highest accuracy, reliability and modular extensions.

The RMD Touch allows simultaneous measurement of multiple sensors, recording of irradiance and dose.

Each sensor channel contains a high-precision 24 bit ADC and a multi-stage amplification to achieve a wide dynamic range of up to 7 orders of magnitude. The measurement of all channels is performed simultaneously. Calibration and sensor information are permanently stored in the sensor and are automatically transferred to the RMD Touch. This makes the RMD Touch the perfect measuring instrument for all laboratory applications.

The RMD Touch also has a wide range of sensors. The radiometric sensors are long-term stable, robust and suitable for many applications.

The sensors can be connected to the laboratory radiometer RMD Touch and to the mobile radiometers RMD & RMD Pro.



  • UV radiometry
  • low-light detection
  • LED measurements
  • germicidal UVC radiation and disinfection (UVGI)
  • optical hazard analysis
  • lifetime measurements
  • plant photobiology
  • phototherapy
  • UV curing
  • and many more

Optical measuring systems usually consist of the radiometer, a sensor with filter and cosine-corrected optics, and a calibration that allows a direct reading in the corresponding units. The sensor memory contains all sensor identifications and the calibration history. The sensor also contains a temperature sensor.

The RMD Touch is operated by a high-resolution capacitive touchscreen. A powerful Cortex ARM processor ensures durability and remote update capability. This means that new functions can be installed directly on site.

The RMD Touch and the PC software are Windows 10/11 compatible. The fully digital interface communicates with the PC via USB.

The evaluations and units, such as W/m², µW/cm², J/m², lux and klx, are adjustable. Numerical and graphical single and multi-channel measurements, oscillograms and data logger measurements such as min/max and other measurement modes are clearly displayed. The parameterization is done intuitively directly on the RMD Touch and is password protected.

The RMD Touch can be easily used in laboratory, pharmaceutical and industrial environments. With the associated software, the RMD Touch can be controlled from the PC. The meter records measurement data directly to a USB stick for up to 1000 days at a time.


Sensor spec 24 bit, full digital
Sensor connections 2
Display capacitive touch display
  5" WVGA
Display output Irradiance + dose
Oscilloscope view
  Min/max irradiance
  Relative view
Dimensions 185 x 251 x 100 mm
Mains connection 100 - 240 V, 50/60 Hz
Power (el.) 20 W
Operating temperature 5 to 60 °C
Storage temperature -10 to 60 °C
Humidity < 80%, non-condensing
Data recording rate adjustable: 1 s - 1 h
Recording duration > 24000 h
PC interface USB 2.0
Memory interface 1 x USB stick (up to 32 GB)


Spectral ranges UVA, UVA+, UVBB
Measuring range, typ. 0 - 10 W/cm²
Resolution 1 µW/cm²
Spectral ranges UVB, UVC, VISB, VISBG
Measuring range, typ. 0 - 1 W/cm²
Resolution 0.1 µW/cm²
Recommended for proof UVC, Erythema+UVA with high
the safety at work sensitive measuring range:
  0 - 10 mW/cm²
Resolution 0.001 µW/cm²
Dose measuring range 0 - 100 MJ/cm²
Illuminance measurement 0 - 500.000 lx
Resolution 0.001 lux
Dynamic range up to 107
AD conversion 24 bit
Temperature sensor integrated
Dimensions Ø 40 mm, h 35 mm
Optical surface Ø 6 mm
Weight 160 g
Connection cable 1,8 m
Operating temperature 0 to 60 °C
Storage temperature -20 to 60 °C
Humidity <80%, non-condensing

Spectral ranges digital radiometer RMD


Calibration uncertainty 4,5% - 7,0% (k=2)
Linearity error < 1%
Ageing / year < 3%