RED-Wave Extended Range NIR Spectrometer 
- Measurements from 900-2500nm (0.90-2.50 um)
- For NIR measurements and applications requiring wide spectral range
- 512 or 1024 pixel extended range InGaAs Photo Diode Arrays
- Integrated 2-stage thermo electric cooler set to operate at -30 deg C
- Increased air flow and specialized heat sink for added stability
- Applications include radiometry, reflectance, absorption, transmission, and laser measurement
StellarNet’s high performance RED-Wave NIR Spectrometers cover NIR wavelength ranges from 900-2500nm. The spectrometers are exceptionally robust with no moving parts and are packaged in small rugged metal enclosure (2.75” x 4” x 6”) for portable, processes, and lab applications. The InGaAs detector is a linear photo diode array with 512 pixels (1024 optional) 25μm by 250μm tall to provide best signal performance. The detector has an integrated two-stage thermo electric cooler (TEC) maintained at –20 °C, stabilized within +/-0.1°C. The RED-Wave NIR InGaAs spectrometers use single strand SMA 905 fiber optic input.
Ruggedized – The detachable spectrograph assembly and control electronics are protected inside a rugged metal enclosure, suitable for portable, process, lab, and field applications.
Onboard Memory with pre-set calibrations, spectrometer settings, and snap shot memory to provide an instantaneous spectral image from the InGaAs array.
High Speed Electronic Interface can be attached directly to a computers USB port for high speed data transfer. Options for Wifi/ethernet communication available as well as other interfaces. ContactUs@StellarNet.us for more info.
NIR Applications include chemical absorption, moisture analysis, transmission of filter and optical components, and high power radiometric measurements such as laser characterization. Contact a StellarNet application sales engineer for any other application inquiries.
RED-Wave Extended Range NIR Spectrometer
| Model | Wavelength Range (nm) | InGaAs Pixels | Grating g/mm | Estimated Resolving Resolution (nm) |
|---|---|---|---|---|
| NIR1.85 | 1000-1850 | 512 | 300@1200 | 4 |
| NIR2.15 | 900-2150 | 512 | 150@1250 | 7 |
| NIR2.2 | 900-2300 | 512 | 300 | <13 |
| NIR2.2X | 1450-2195 | 512 | 300@1200 | 4 |
| NIR2.2-1024 | 900-2200 | 1024 | 300 | 7 |
| NIR2.2X-1024 | 1500-2200 | 1024 | 600 | 2.8 |
| NIR2.5 | 1050-2500 | 512 | 150@2000 | 7 |
| NIR2.5X | 1800-2500 | 512 | 300@2000 | 4 |
Tungsten Halogen Lamp spectrum
| Specifications Zero defect 512 detector RED-Wave Extended Range NIR Spectrometer | |
| Dynamic range: 4000:1 with 6 decades | Dimensions: 150 x 100 x 68.8 mm |
| Resolving resolution: 13nm with 25μm slit | Power consumption: 2 Amps @ 5 VDC |
| InGaAs Detector: 512 or 1024 pixel cooled PDA | Interface: USB-2 or Wifi2, RS2323, SPI3, 4-20mA3 , Digital I/O3 or ethernet3 |
| Detector range: 0.9-2.3μm (900-2300nm) | Data transfer speed: 30Hz or 1000Hz1 |
| Pixel size: 25um x 250um | Detector Integration: 1 millisecond to 200ms* |
| Pixel well depth: 130 x108 electrons | Slit size options: 25um for optimum performance |
| Selectable well control: 130 x108 or 5 x106 el. | Operating systems: Windows and Linux2, Andriod2, iOS |
| Signal to noise: 4000:1 with 2x TEC cooling | Software included: SpectraWiz Program, WinSDK (C,C#,VB, Delphi), Customizable LabVIEW, VBA for Excel (CRI & LED Report) |
| Digitizer: 16-bit | |
1 zAP1 Electronics Upgrade 2 zAP2 Wifi + Applications Processor Upgrade with SpectraWiz Mobile Software3 SMART-Control Interface*longer exposure times can decrease signal to noise and dark baseline reference
RED-Wave Sample Spectra
RED-Wave NIR2.5 and RED-Wave NIR2.2X NIR spectrometer overlays in StellarPro Software, showing reflectance spectra of caffeine tablets. Often NIR spectroscopy is used as a non-contact method to distinguish between tablet ingredients.
RED-Wave NIR2.5 and RED-Wave NIR2.2X NIR spectrometer overlays in StellarPro Software, showing reflectance spectra of chlorella powder. NIR spectroscopy is used for quality control of various nutraceuticals and supplements. Chlorella is a nutrient-dense, blue-green algae. It is one of the richest dietary sources of chlorophyll and is also a potent source of protein and contains vitamins B6, B12 and iron to naturally support your immune system.
RED-Wave spectrometer with SL1-CUV tungsten halogen lamp with integrated cuvette holder, and a F1000-VIS-NIR 1000um diameter fiber optic cable measuring the NIR absorption of methanol in water.
Lens, filters, films, coatings, and plastics sometimes will have interesting characteristic fringe patterns in the far NIR. Be sure to test your samples!
RED-Wave NIR spectrometer with SL1 tungsten halogen lamp, TXF-4 transmission fixture, and two F600-VIS-NIR 600um diameter fiber optic cables measuring the transmission through PTFE and Lexan plastics. Above SpectraWiz spectroscopy software displays 2nd derivative spectra in real time.
RED-Wave NIR spectrometer with SL1-CUV tungsten halogen lamp with integrated cuvette holder, and a F600-VIS-NIR 600um diameter fiber optic cable measuring the NIR absorption of oil and alcohol solutions.
Fats and oils constitute the main source of energy and essential fatty acids in the human diet. Additionally, fats and oils function as lubricants in equipment and carriers of fat-soluble vitamins and pigments. Exploring the NIR past 1700nm allows us to identify some of the more important spectral feastures of fats and oils. Above is a spectrum of the StellarNet low dark RED-Wave (900-2300nm) showing important spectral features past 1700nm such as Fatty Acids absorbance bands at 1750nm and oil saturation absorbance at 2100nm.
Coffee in addition to many other agricultural products shows very important spectral characteristics past 1700nm. Commercial coffee is mainly made up of two main blends, Arabica and Robusta. Main distinguishing absorptions can be found from water content (1466nm and 1962nm) and lipids. NIR spectroscopy can be used for classification as well as blending. Also, caffeine and dry matter content can be determined. For food quality control and identification of adulterants it is very important to test all parts of the NIR region.
Dual System Configurations
All RED-Wave units can be coupled with StellarNet’s BLACK-Comet or UVN-SR units to cover the entire 200-2500nm range. Coupling the units can provide you with quick analysis of color in the visible spectrum and additionally compound analysis though compound fingerprint identification in the near infrared spectrum.
JACK 1-In Trigger
TTL input trigger to enable spectrometer scan. $265.00
zAP1 Electronics Upgrade
zAutomation Processor 1 upgrade provides auto and user controllable spectral baseline and gain for maximized dynamic range and burst mode for high speed consecutive spectral capture. $475.00
zAP2 WiFi Upgrade
The zAP2 WiFi upgrade enables WiFi access to any spectrometer. Now use our new StellarRAD App on your iPhone or Android device to make real-time spectral measurements quick and easy. The zAP2 WiFi upgrade can be added to all new and some old spectrometers in the field. Once added, the spectrometer runs as normal receiving power from the computer’s USB. When you connect your zAP2 5VDC power plug, the WiFi initializes and you can connect your device. Also, the zAP2 enables USB over IP and you can run SpectraWiz wirelessly on your Windows computer. $630.00
Multi-Spectrometer Configurations
Units may be daisy chained via USB-2 hub allowing simple configurations for dual and multi-beam process applications. 8 spectrometers can be operated at once!
Free SpectraWiz Software
The powerful SpectraWiz® spectrometer software is provided free of charge with every spectrometer instrument. This includes drivers and customizable software for Windows. The SpectraWiz software is considered the “Swiss Army Knife of Spectroscopy” and may be used to accurately measure wavelength emissions, reflectance, transmission, absorption, concentrations, and absolute intensities. In addition to real-time spectroscopy, SpectraWiz® has built-in applications for SpectroRadiometry, SpectroColorimetry, ChemWiz chemistry lab concentration analyzer, and UV level monitors. Download SpectraWiz Software FREE
StellarRAD for iPhone and Andriod – Light Spectral Analysis App
The StellarRAD App for all WiFi-enabled StellarNet spectrometers (zAP2 WiFi upgrade) makes real-time light measurement quick and easy. Acquire full spectrum analysis of LEDs, lamps, lasers, solar or grow lights, and just about any type of luminaire from ultra-violet through the visible and near-infrared!
This intuitive app lets users control their spectrometer and capture basic and more advanced light measurement parameters such as spectral irradiance and lumens. Colorimetric analysis such as CRI (color rendering index), CCT (correlated color temperature), xy chromaticity, and much more are included. Easily save and export your data and full spectral graph as an .IRR text data file, screenshot, and/or PDF report with all parameters listed.
SpectraWiz MobileTM for Linux/RasPi
The SpectraWiz MobileTM for Linux/RasPi is designed to run directly on the SMART-Control spectrometer interfaces or can be packaged for your your requirements. Using the local access point or WiFi you can easily log in and run applications for General Spectroscopy, Radiometry, Colorimetry, and Concentration analysis.
The easy to use applications are written in python and provided free with purchase of a SMART-Control spectrometer upgrade. Source codes can be purchased separately and can be further customized to suite each user’s requirements. OEM customers can add their logos or additional computations and industrial customers can set their spectrometer and stream their data to PLCs or other process monitoring platforms. SMART-Control devices support RS232, 4-20mA Analog, 26 pin digital I/O, Ethernet, I2C and other options available upon request.
Standard Interface
The system includes a high speed plug & play interface using USB-2 connection.
zAP2 WiFi Upgrade
The zAP2 WiFi upgrade enables WiFi access to any spectrometer. Now use our new StellarRAD App on your iPhone or Android device to make real-time spectral measurements quick and easy. The zAP2 WiFi upgrade can be added to all new and some old spectrometers in the field. Once added, the spectrometer runs as normal receiving power from the computer’s USB. When you connect your zAP2 5VDC power plug, the WiFi initializes and you can connect your device. Also, the zAP2 enables USB over IP and you can run SpectraWiz wirelessly on your Windows computer. $475.00
SMART-Control Interface Upgrade
The SMART-Control device offers communication flexibility and application specific customization for any StellarNet spectrometer. This add-on interface includes an integrated CPU with 1GB RAM and many communication protocols such as RS232, SPI, 4-20mA Analog for PLCs, Digital I/O, Ethernet, Wifi and many other options. The SMART-Control allows customers to move their spectrometers into process or OEM environments and stream their selected real world data. $2,100.00
Technical Information Request
"*" indicates required fields
Duration of nocturnal artificial light and refuge-seeking behaviour in the shore crab Carcinus maenas Linnaeus, 1758 (Decapoda: Brachyura: Carcinidae)
Rosie McAndrew, Ilse M. Daly, Nicholas W. Roberts, Martin How, and Rochelle J. Meah | Journal of Crustacean Biology 46(3), ruag063 | September 11, 2026 | 10.1093/jcbiol/ruag063 Abstract Biological rhythms of species are chiefly governed by natural cycles in...