Discontinued Products
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Food & Dairy
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Grain
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Feed
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Soil, Science & Environment
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Discontinued Products
Radiation Sensors
Radiation data are important in calculating an energy balance, in determining latent heat flux vs. sensible heat, in generating interception data for biomass and crop growth models, and for use in the Penman-Monteith equation.
Radiation Sensors Radiation data are important in calculating an energy balance, in determining
latent heat flux vs. sensible heat, in generating interception data for biomass and crop growth models,
and for use in the Penman-Monteith equation.
- Weatherproof Long Lasting
- Measure photosynthetically active radiation (PAR) or photosynthetic photon flux (PPF)
- Low cost, high accuracy sensor that is ideal for researchers and growers
- Measure the plant growth environment
- Easy-to-use, calibrated sensor that is ready to measure
- Connect to our range of data loggers or handheld meters
ACCUPAR LP-80
Measure Canopy PAR and Calculate LAI
The AccuPAR model LP-80 is a light, portable, linear PAR sensor. It lets you measure canopy PAR interception and calculate leaf area index (LAI) at any point within the plant or forest canopy. PAR data can be used with other climate information to predict biomass production without destruction of the crop. PAR is also important in working out other canopy processes; such as radiation interception, energy conversion, momentum, gas exchange, precipitation interception, and evapotranspiration. The AccuPAR also utilises radiation measures and other parameters to precisely calculate leaf area index (LAI) non-destructively in real time.
Lightweight, Self-contained
The AccuPAR weighs around 1 pound ( 0.5kg). The attached controller, powered by four AA batteries, may be used to take recordings manually or can log data unattended for short periods. It stores 1 MB of data (over 2,000 readings) for later download and analysis.
Includes External Sensor
The included external PAR sensor can be used to take simultaneous above- and below-canopy PAR readings. Using the external sensor and the AccuPAR together allows you to get precise PAR and LAI data in most sky conditions.
| DATA STORAGE CAPACITY | 1 MB RAM (over 2,000 measurements) |
|---|---|
| NUMBER OF SENSORS | 80 |
| PAR RANGE | 0 to > 2,500 ?mol m-2s-1 |
| RESOLUTION | 1 ?mol m-2s-1 |
| PROBE LENGTH | 84 cm |
| OVERALL LENGTH | 99 cm (40 in) |
| UNATTENDED LOGGING INTERVAL | User selectable, between 1 and 60 min |
| INSTRUMENT WEIGHT | 0.56 kg (1.23 lbs) |
| DATA RETRIEVAL | Direct via RS-232 |
| KEYPAD | 6 key, menu-driven |
| OPERATING ENVIRONMENT | 0-50°C (32-122°F), 0-100% relative humidity |
| EXTERNAL PAR SENSOR CABLE LENGTH | 5 meters |
| INTERFACE CABLE | RS-232 cable |
| POWER | Four AAA Alkaline cells |
| MINIMUM SPATIAL RESOLUTION | 1 cm |
PAR SENSOR
Measure Photosynthetically Active Radiation
The model QSO-S PAR Photon Flux sensor measures the Photosynthetic Photon Flux (PPF) in ?mol m-2 s-1 from a field of view of 180 degrees. The diffusion disk is composed of characterized pigments for an ideal spectral response.
Weatherproof for Long-Term Use
The sensor is designed for sustained outdoor use, and is totally water tight and submersible.
Accuracy
Precise recording depends on cleanliness of the lens and installation at horizontal (180°). The sensor head has a domed diffusion disk to decrease the need for regular cleaning. A leveling plate is contained for exact installation.
| SPECTRAL RANGE | 400 - 700 nm |
| ACCURACY | ± 5% |
|---|---|
| RESOLUTION | 2 ?mol m-2 s-1 |
| FIELD OF VIEW | Hemispherical, 180° |
| MEASUREMENT RANGE | Linear Range: 0-1000 mV (0-5000 ?mol m-2s-1) Full Sunlight: 400 mV (2000 ?mol m-2s-1) |
| CALIBRATIONS AND CONVERSIONS | Sensors are calibrated for outside use. 5.0 µmol m-2 s-1 per mV |
| OPERATING TEMPERATURE | -40 to +60°C |
| POWER | None, self powered |
| CABLE LENGTH | 5 m |
| CABLE CONNECTOR TYPES | 3.5 mm 'stereo' plug |
| SENSOR DIMENSIONS | 2.4 cm x 2.75 cm (0.95 in x 1.1 in) |
| DATA LOGGER COMPATIBILITY (NOT EXCLUSIVE) | Decagon Em50 series, ProCheck, Campbell Scientific |
| WARRANTY | One year, parts and labor |
PYR SOLAR RADIATION SENSOR
Measure Total Solar Radiation
The PYR total solar radiation sensor (pyranometer) measures the solar radiation flux density (in watts per meter squared) from a field of view of 180 degrees.
Weatherproof for Long-Term Use
The sensor is designed for continuous outdoor use, and is completely water proof and submersible.
Accuracy
Accurate measurement depends on cleanliness of the lens, and installation of the sensor at horizontal (180°). The sensor head has a domed diffusion disk to reduce the need for frequent cleaning. A leveling plate is included for accurate installation.
| SPECTRAL RANGE | 380 - 1120 nm |
| ACCURACY | ± 5% |
|---|---|
| RESOLUTION | N/A |
| FIELD OF VIEW | Hemispherical, 180° |
| MEASUREMENT RANGE | 0 to 1,750 W m-2 (0 - 350 mV) |
| CALIBRATIONS AND CONVERSIONS | Sensors are calibrated for outside use. 5.0 W m-2 per mV |
| OPERATING ENVIRONMENT | -40°C to +60°C |
| CABLE LENGTH | 5 m |
| CABLE CONNECTOR TYPES | 3.5 mm 'stereo' plug |
| SENSOR DIMENSIONS | 2.4 cm x 2.75 cm (0.95 in x 1.1 in) |
| DATA LOGGER COMPATIBILITY (NOT EXCLUSIVE) | Decagon Em50 series, ProCheck, Campbell Scientific |
| WARRANTY | One year, parts and labor |
Operating Environment: -40°C to +60°C Suitable For: Research Monitoring Irrigation Management Soil, Moisture, Temperature Measurement Fertiliser Control Soil / Fertiliser Drainage Water Level Monitoring Micro-climate and Canopy
