The MicroNIR OnSite-W is the latest addition to the VIAVI Solutions innovative, ultra-compact spectrometer product line. The MicroNIR OnSite-W is the smallest fully-integrated NIR spectrometer on the market and is enabled by proven VIAVI linear variable filter (LVF) technology. With no moving parts and IP65/IP67 dust/water ingress rating, it is designed for a wide range of material characterization applications in food, agriculture, pharmaceutical, and security markets.

Features and Benefits

  • Rapid, real-time, non-destructive near-infrared material analysis
  • Wireless, compact, rugged, and ergonomic design for one-hand operation
  • Multifunction button for one-click data acquisition
  • Internal, rechargeable battery with run time greater than 10 hours
  • IP65 and IP67 rated for use in wet and dusty environments
  • Bluetooth or USB connectivity to tablet or PC
  • Compatible with original MicroNIR OnSite accessories
  • Powerful MicroNIR Pro model-building and prediction software
  • Intuitive, easy-to-use software interface


  • Pharmaceutical raw materials
  • Polymers and chemicals
  • Narcotics and explosives
  • Grain and forage
  • Tobacco and agricultural products
  • Meat and dairy products

The MicroNIR OnSite-W system includes the MicroNIR Pro software suite with features for data acquisition, calibration and method development, user management, and real-time prediction. Using MicroNIR Pro software, a developer can process data and build complete chemometric models using regression and classification algorithms including PLS, MBSD, SMV, and PCA analyses. Batch mode predictions on stored data are also supported. MicroNIR Pro software also includes instrument performance qualification per EP 2.2.40 and USP 1119 test criteria and tools enabling Title 21 CFR Part 11 compliance. An enhanced OPC interface is optionally available for integration with process control systems. The OnSite-W system also includes a standalone tablet application with simplified user interface for data acquisition and real-time prediction in the field. Please see recommended hardware/software listed in specifications.

Standard Accessories

  • Two applicators with sapphire windows, AR-coated on one side for maximum light throughput
    • Small applicator for flexible operation and for reaching samples in confined spaces easily
    • Large applicator for soft material measurement such as fiber, clothes and vegetation
  • Protected white reference with sapphire window
    • Matching grooves on the applicators and reference for easy alignment in the field
    • Protected window and aluminum enclosure for use in the field and for easy cleaning
  • Rugged carrying case including space for PC and tablet
  • USB cable for charging and data connection to PC