The Model 8.0 features an Integral Sensor and applications include lamp UVC lamps intensity & aging, germicidal lamps intensity & aging, eyewear UV block comparison, UVC lamp box leak check.

The Model 8.0RP is also available with a remote sensor on a 900mm cable. The probe is black anodized aluminum for maximum durability and light weight and measures a compact 20.3mm high by 40.6mm diameter providing an added measure of flexibility in limited and confined spaces.

Specifications Radiometer
Model 8.0
Irradiance Range 0-1999 µW/cm² UVC
Response 246-262 nm (254 ± 8 nm)
Resolution 1 µW/cm²
Conversion Rate 3.0 Readings/Sec
Display 3.5 Digit LCD
Operating Temps 0° C to 40° C
Operating Humidity 5% to 80% RH
Accuracy ±10% REF.NIST
Dimensions (LxWxD) 10.5 x 6 x 2.2 cm
Weight 110 Grams
Power Source 9-Volt DC Battery
Lens UV Glass
Diffuser None
Detector SiC/Shortpass I.F.


To enquire on the the Model 8.0 please click on the link below or use the contact page.

When requesting a quote please provide quantity and suburb/state for postage/delivery details.


Silicon Carbide (SIC) Photodiode packaged in hermetically sealed UV glass window cap. Interference filter blocks UVA and UVB.

Press and hold push-button switch on face of unit. Aim sensor window in top panel of meter directly at UV source. Note reading on LCD and record if desired.

Proper Usage of Solarmeter ® Ultraviolet Radiometer for Lamp Tests

  • Wear UV-block eye, face, hand protection when checking UVC lamps.

  • Allow lamps to warm-up prior to taking readings (at least 5 min).

  • Hold sensor close to lamp to measure individual lamp UVC intensity. Hold sensor at distance from lamp(s) for effective sterilization intensity.

  • When checking aging of lamps, keep measuring distance and locations constant.

  • Lamps should be replaced when output drops to about 70% of their original (new) readings.

  • If unsure of what original new values were, replace a lamp with new one and compare old one.

  • Do not subject the meter to extremes in temperature, humidity, shock or dust.

  • Use a dry, soft cloth to clean the intrument. Keep sensor free of oil, dirt, etc.

Note: Sensor is completely solar blind to UVB, UVA, visible, and IR. Meter will read 000 pointing to non-UVC sources, eg, sun, floodlamps, etc.