Solarmeter Model 9.6 Red Light Meter - Measures from 577-661nm with range from 0-199.9 mW/cm² Red Light

The Model 9.6 Red Light Meter uses a GaAsP Photodiode packaged in hermetically sealed glass window cap. Filter used to narrow bandwidth as shown on spectral response graph. Applications include monitoring red LED/lamp intensity and aging, monitoring red fluorescent and HID lamp intensity and aging, monitoring collagen stimulation and wound healing lamp intensity and aging, measuring outdoor red light, and measuring photosynthetic action spectrum red band. To operate, 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. Battery operation voltage is 9V down to 6.5V. Below 6.5V the LCD numbers will begin to dim, indicating the need for battery replacement. Under typical service load, the battery should last approximately 2 years.