Product Manuals

You can access a PDF version of the owner's manuals for each of our products by selecting your model below. If you do not have a PDF reader, you can download one here.
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Click here for discontinued product manuals >

Aspirated Radiation Shield
Barometric Pressure Sensor
Chlorophyll Concentration Meter
Infrared Radiometers
Net Radiometer
Oxygen Sensors
Thermopile Pyranometers
Silicon-cell Pyranometers
Pyrgeometers
Full-Spectrum Quantum Sensors
Original Quantum Sensor
Red/Far Red Sensors
Apogee Instruments Red/Far Red Sensors
S2-131-SS
PAR/Far Red Sensors
Apogee Instruments PAR/Far Red Sensors
S2-141-SS
Photometric Sensors
Leaf and Bud Temperature Sensor
Field Spectroradiometers
Lab Spectroradiometers
NDVI and PRI Radiometers
Apogee Instruments NDVI and PRI Radiometers
S2-111-SS
S2-112-SS
S2-121-SS
S2-122-SS
S2-411-SS
S2-412-SS
S2-421-SS
S2-422-SS
Temperature Sensors
UV Sensors