NDVI Sensor
At METER, we think you should spend less time on complexity and more time doing what matters. Apogee NDVI sensors are easy-to-use. And the best part? They’re pre-configured for use with the ZENTRA system, so you’re instantly up and running.
Low cost—low maintenance
By focusing on just two relevant bands, it’s possible to make an accurate multiband radiometer for a fraction of what a full-spectrum spectroradiometer costs. Apogee NDVI sensors are multiband radiometers that combine an ultra-rugged form with sophisticated cloud data delivery for an unbeatable price-to-performance ratio. They’re inexpensive enough to deploy multiple sensors simultaneously, so you can maximize spatial coverage and explore spatial and temporal variability in canopy structure and function.
Deploy for months or even years
Most spectrometers are delicate and expensive, making long-term field deployment risky. Apogee NDVI sensors are built for long-term exposure to the elements. Encased in a durable housing with an epoxy fill, they are watertight, weatherproof, and have fully sealed optics. Mount them on a fence post, tripod, or a meteorological tower. They’re rugged enough to leave in the field for an entire growing season or longer.
Field ready and radiometrically calibrated
Each sensor is radiometrically calibrated to a NIST-traceable standard. Readings are output in units of radiant flux density. Calibration information is stored on board the sensor, so you never have to worry about keeping track of calibration coefficients.
Collect data and monitor remotely
To simplify your workflow, Apogee NDVI sensors are plug-and-play with ZL6 data loggers, which means automatic sensor recognition and zero programming. ZENTRA Cloud lets you monitor remote sites in near-real time from any internet-connected device. Observe field conditions, check and configure sensor and system function, or download data from the comfort of your home or office.
Work less. Measure more.
Apogee NDVI sensors are part of a complete system of affordable, easy-to-use sensors, loggers, and software that require little maintenance and put near-real-time data at your fingertips, so you can publish more and work less.
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Specifications
| NDVI SENSOR SPECIFICATIONS | |
|---|---|
| Power supply | 5.5 to 24 V DC |
| Calibration factor (reciprocal of sensitivity) | Custom for each sensor and stored in firmware |
| Calibration uncertainty | ± 5 % |
| Output range | SDI-12 |
| Wavelength ranges | Red detector = 650 nm ± 5 nm with 65 nm FWHM NIR detector = 810 nm ± 5 nm with 65 nm FWHM |
| Measurement range | 2x full sunlight |
| Measurement repeatability | Less than 1 % |
| Long-term drift | Less than 2 % per year |
| Response time | Less than 0.6 s |
| Field of view | 180° |
| Directional (cosine) response | ± 2 % at 45°; ± 5 % at 75° zenith angle |
| Temperature response | Less than 0.1 % per C |
| Housing | Anodized aluminum body with acrylic window |
| IP rating | IP68 |
| Operating environment | -40 to 70 C; 0 to 100 % relative humidity |
| Dimensions | 30.5 mm diameter, 34.5 mm height |
| Mass (with 5 m of cable) | 140 g |
| Cable | 5 m of shielded, twisted-pair wire with TPR jacket and stainless steel connector |
| Warranty | 4 years against defects in materials and workmanship |
| Data logger compatibility (not exclusive) | METER EM60 series, ZL6 series, ZSC, ProCheck, Campbell Scientific |
Downloads
FAQs
- Can I check downward-facing NDVI sensors output using a white panel test?
- What is the calibration equation of my NDVI sensor?
- Why does the NDVI calculation show no results if the sensor wavelength output is zero? Is the sensor bad?
- Can I use NDVI sensors at the plant level?
- What are some applications for NDVI sensors?
- What is the area of measurement?
- How do I calculate NDVI?
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