- compact, high specification datalogger
- inputs specially designed for light sensors, especially Skye’s narrow band versions
- storage on SD card in text format
- battery, solar or mains power supply options
- ideal solution for short, medium or long term projects
- waterproof enclosure
- GPRS remote communication option
The following systems incorporate the wavebands from the satellites we are asked for most.
However, we are usually able to match the wavebands from other Earth Orbiting Satellites – please ask.
We can also provide systems incorporating other wavebands – again please ask.
SYSTEMS INCLUDE DATALOGGER WITH SD STORAGE, SENSORS AND POLE MOUNTS
NDVI
Channel 1 – 650 nm centre wavelength, 40nm bandwidth
Channel 2 – 800 nm centre wavelength, 40nm bandwidth
(We can also supply other NDVI wavelengths – please ask)
PRI
Channel 1 – 531nm centre wavelength, 10nm bandwidth
Channel 2 – 570nm centre wavelength, 10nm bandwidth
LANDSAT 7
Channel 1 – 450nm – 520nm
Channel 2 – 520nm – 600nm
Channel 3 – 630nm – 690nm
Channel 4 – 760nm – 900nm
LANDSAT 8
Channel 1 – 430nm – 450nm
Channel 2 – 450nm – 510nm
Channel 3 – 530nm – 590nm
Channel 4 – 640nm – 670nm
Channel 5 – 850nm – 880nm
MODIS
Channel 1 – 620nm – 670nm (MODIS Band 1)
Channel 2 – 841nm – 876nm (MODIS Band 2)
Channel 3 – 459nm – 479nm (MODIS Band 3)
Channel 4 – 545nm – 565nm (MODIS Band 4)
Channel 5 – 1230nm – 1250nm (MODIS Band 5)
Channel 6 – 1628nm – 1652nm (MODIS Band 6)
Channel 7 – 2105nm – 2155nm (MODIS Band 7)
SENTINEL 2
Option 1 for 10 m Spatial Resolution Bands
Channel 1 – 490nm cwl (65nm bandwidth) (Band 2)
Channel 2 – 560nm cwl (35nm bandwidth) (Band 3)
Channel 3 – 665nm cwl (30nm bandwidth) (Band 4)
Channel 4 – 842nm cwl (115 nm bandwidth) (Band 8)
Order code: DHSD/SentinelA
Option 2 for 20m Spatial Resolution Bands
Channel 1 – 705nm cwl (15nm bandwidth) (Band 5)
Channel 2 – 740nm cwl (15nm bandwidth) (Band 6)
Channel 3 – 783nm cwl (20nm bandwidth) (Band 7)
Channel 4 – 865nm cwl (20nm bandwidth) (Band 8a)
Option 3 for 60m Spatial Resolution Bands
Channel 1 – 443nm cwl (20nm bandwidth) (Band 1)
Channel 2 – 945nm cwl (20nm bandwidth) (Band 9)
AVHRR
Channel 1 – 570nm – 680nm
Channel 2 – 725nm – 1050nm
SKR 1840 | SKR 1850 | SKR 1860 | |
No. channels | 2 | 4 | 4 |
Construction | UV resistant 'Delrin’ 527UV | Black acetyl and black anodised | Anodised aluminium housing. Cosine correcting diffuser and optical glass |
Cable | Screened military specification | Screened military specification | Screened military specification |
Wavelengths | Choose between 400nm and 2400nm | Choose between 400nm and 2400nm | Choose between 400nm and 2400nm |
Bandwidths | Choose from 5nm up to 100nm | Choose from 5nm up to 100nm | Choose from 5nm up to 100nm |
Filters matched in pairs for incident and reflected sensors | ✔ | ✔ | ✔ |
Detector | Wavelength dependent | Wavelength dependent | Wavelength dependent |
Filters | Metal Interference and/or glass depending on wavelength and bandwidths chosen | Metal Interference and/or glass depending on wavelength and bandwidths chosen | Metal Interference and/or glass depending on wavelength and bandwidths chosen |
Output | µA | µA | µA or voltage |
Amplified models available | ✔ | ✔ | ✔ |
Linearity error | <0.2 | <0.2 | <0.2 |
Absolute calibration error | typ. <3%, 5% max | typ. <3%, 5% max | typ. <3%, 5% max |
Cosine error | ± 3% | ± 3% | ± 3% |
Longterm stability | ± 2% | ± 2% | ± 2% |
Temperature Range | -25 to +70°C | -25 to +70°C | -25 to +70°C |
Weight | 295g | 400g | 600g with 3m cable |
Dimensions | 49mm (diameter x 86mm (height) | 54mm (with head) x 85mm (with head) | 59mm (body diameter), 67mm with cosine correcting head 93 mm (height with head) |
IP rating | IP67 | IP54 | IP67 |
Suitable for Permanent Installations | ✔ | X | ✔ |
Compatible with Skye's range of SpectroSenses and DataHogs | ✔ | ✔ | ✔ |
DataHog2 Datalogger | |
Operating Range | -20 to +70°C |
Inputs | Current - nA to µA |
Resolution | 15 bits A/D converter |
Sample & Log Intervals | 10s up to 24 hrs |
Data Storage | Battery backed RAM. Onboard capacity for up to 27,000 readings* |
Housing | ABS enclosure sealed to IP 65 |
Clock | Real time clock |
Communications | RS232/USB |
Power Supply | Internal 9 volt batteries ** |
Battery Life | 3-6 months depending on number of sensors in use and logging interval |
Data Format | ASCII text file |
* Extra storage available with addition of SD storage module (internal or external) |
BROCHURES AND DATASHEETS
SYSTEMS
Land-based Systems for Remote Sensing
Sensors & Systems for Precision Agriculture
Sensors and Systems for PRI
SENSORS
2-Channel Sensors for Portable Systems
2-Channel Sensors for Permanent Installations
4-Channel Sensors for Portable Systems
4-Channel Sensors for Permanent Installations
METERS AND DATALOGGERS
SpectroSense2+ with GPS
DataHog2 with SD storage