The Model 9.6 features an Integral Sensor and applications include red LED, fluorescent and HP (HID) lamp testing & aging, wound healing irradiance and collagen stimulation irradiance. Also available in microwatt version.



Specifications Radiometer
Model 9.6
Irradiance Range 0-199.9 mW/cm²
Bandwidth 577-661 nm
Response - 633 nm 97%
Resolution 0.1 mW/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
Window Schott Glass Cap
Sensor GaAsP Photodiode with Schott Filter
Diffuser Virgin Teflon .005


To enquire on the the Model 9.6 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.


GaAsP Photodiode packaged in hermetically sealed glass window cap.
Schott color glass filter to narrow bandwidth as shown on spectral response graph.

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

Plant Growth

The red band of the photosynthetic radiation action spectrum (PAR).

The light can be measured directly or the instrument can measure the light transmitted through a leaf, thereby providing a means to estimate the leaf's photosynthetic/phototropic pigment concentration.

Proper Usage of Solarmeter ® Ultraviolet Radiometer for Red Light Tests
  • Wear tinted eye wear when checking intense light sources.

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

  • Hold sensor close to LED or lamp to measure individual light intensity. Hold sensor at working distance from source for effective intensity.

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

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

  • If unsure of what new values were, replace adjacent light 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.