Introduction to Sensor
NDVI Sensor
Monitor Vegetation Health. Remotely and Continuously
The Apogee NDVI Sensor provides reliable, continuous monitoring of vegetation health and plant conditions. Designed for long-term outdoor exposure, it combines a rugged construction with remote cloud data delivery, making it an easy-to-use and cost-effective solution for agricultural and environmental monitoring.
Specifications
Specifications
Measurement Specifications
| Parameter | Specifications |
|---|---|
| Calibration factor (reciprocal of sensitivity) | Custom for each sensor and stored in firmware |
| Calibration uncertainty | ± 5 % |
| 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 |
Physical Specifications
| Parameter | Specifications |
|---|---|
| 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 |
Communication Specifications
| Parameter | Specifications |
|---|---|
| Data logger compatibility (not exclusive) | METER EM60 series, ZL6 series, ZSC, ProCheck, Campbell Scientific |
Electrical and Timing Specifications
| Parameter | Specifications |
|---|---|
| Power supply | 5.5 to 24 V DC |
| Output range | SDI-12 |
Other
| Parameter | Specifications |
|---|---|
| Warranty | 4 years against defects in materials and workmanship |
| Compliance | Prop 65 warning |
Features
Special Features
01
Continuous NDVI Monitoring
Continuously monitor vegetation health using paired upward- and downward-facing sensors.
02
Rugged & Weatherproof
Built for long-term outdoor deployment with a durable, watertight housing and sealed optics.
03
Plug-and-Play Data Logging
Works with ZL6 data loggers for automatic sensor recognition and easy data collection.
04
Remote Cloud Monitoring
ZENTRA Cloud provides near-real-time access to data from any internet-connected device.
Applications

