MU-100: UV Integral Sensor with Handheld Meter

The MU-100 has a sensor integrated into the top of the hand-held meter, which displays and stores measurements. The sensor incorporates a photodiode that measures combined UVA and UVB radiation.

  • Product Name:UV Integral Sensor with Handheld Meter
  • Item No.:MU-100
  • Manufacturers:Apogee
  • Country of Origin:USA

The MU-100 has a sensor integrated into the top of the hand-held meter, which displays and stores measurements. The sensor incorporates a photodiode that measures combined UVA and UVB radiation. Typical applications include UV radiation measurement in outdoor environments (sensor is not recommended for long-term continuous outdoor deployment), laboratory use with artificial light sources (e.g., germicidal lamps), and monitoring the filter ability and stability of various materials.

The meter has a sample and log mode, and will record an integrated daily total in mol m-2 d-1. Sample mode will record up to 99 manual measurements. Log mode will power the meter on/off to make a measurement every 30 seconds. Every 30 minutes the meter will average the sixty 30 second measurements and record the averaged value to memory. The meter can store up to 99 averages, once full it will start to overwrite the oldest measurement with new ones. An integrated daily total will be recorded from the 48 averaged measurements (making a 24 hr period). Sample and log measurements can be reviewed on the LCD display or by downloading the data to a computer, however, the integrated daily total can only be viewed by downloading the data to a computer. Downloading data to a computer requires the AC-100 communication cable (a standard USB cable will not work) and ApogeeAMS software.


Calibration Uncertainty    ± 10 %

Measurement Repeatability    Less than 1 %

Non-stability (Long-term Drift)    Less than 3 % per year

Non-linearity    Less than 1 % (up to 300 μmol mˉ² sˉ¹)

Response Time    Less than 1 ms

Field of View    180 ˚

Spectral Range    250 to 400 nm

Directional (Cosine) Response    ± 10 % at 75 ˚ zenith angle

Temperature Response    Approximately 0.1 % per C

Operating Environment    0 to 50 C, less than 90 % non-condensing relative humidity up to 30 C, less than 70 % non-condensing relative humidity from 30 to 50 C

Meter Dimensions    126 mm length, 70 mm width, 24 mm height

Mass    150 g

Warranty    4 years against defects in materials and workmanship