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OVERVIEW
The LI-190R PAR Sensor sets the industry standard for accurate PAR measurement across a wide array of light sources, including natural sunlight, artificial lighting, and mixed environments. Whether you’re working in open fields, greenhouses, under plant canopies, or inside growth chambers, the LI-190R delivers unparalleled precision to support your scientific and agricultural research needs.
Engineered for researchers and environmental professionals, this durable PAR meter is available in four lead lengths (2m, 5m, 15m, and 50m) to offer flexibility for different setups and applications. With an array of advanced features, it consistently delivers the accuracy and reliability needed for critical research.
Improve Your Research with the Precision and Durability of the LI-190R
Features
- Accurate Measurements Across the PAR Waveband
Achieve high-precision readings of Photosynthetically Active Radiation (PAR, µmol of photons m-2 s-1). Uniform sensitivity across the entire 400–700 nm range ensures consistent results, no matter the light source. - Superior Cosine Response
Integrated with advanced cosine response sensors, the LI-190R ensures measurement accuracy even when light reaches the sensor from oblique angles. This makes it ideal for setups where light sources aren’t directly overhead. - Durable and Weather-Resistant Design
Built to withstand high-temperature and high-humidity environments, this rugged sensor is perfect for long-term deployments in diverse conditions. It remains robust and reliable throughout intensive use. - Interchangeable and Detachable Sensor Heads
Simplify installation, removal, and recalibration with the sensor’s modular design. This feature minimizes downtime and maximizes efficiency during demanding research projects. - Tailored Optical Filter for Unmatched Performance
A newly designed optical filter enhances spectral response precision, providing a level of accuracy researchers can trust.
Precise Light Monitoring for Scientific Research and Environmental Adaptability
Plants rely on light between 400–700 nm for photosynthesis, and the LI-190R offers the precision needed to monitor this light effectively. By delivering consistent, research-grade measurements, it simplifies the study of plant photosynthetic responses, offering actionable data for your projects.
Whether you’re examining the effects of sunlight in vast agricultural fields or measuring artificial lighting in controlled environments, this sensor adapts to every need. Its robust durable PAR meter design and cutting-edge cosine response sensors make it an essential tool for scientific research and environmental monitoring.
Unlock Reliable PAR Measurement
The LI-190R PAR Sensor delivers dependable accuracy and versatility for diverse research applications. Designed to meet the highest standards, it’s a trusted tool for achieving precise and consistent measurements in any environment.
Important Information
This sensor requires a LI-COR 2003S Mounting and Leveling Fixture, a 2420-BL Light Sensor Amplifier to convert μA current, and HOBOnet Analog Module for connection to the RX3000 remote monitoring station.
- Accurate Measurements Across the PAR Waveband
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SPECIFICATIONS
Absolute Calibration ± 5% traceable to the U.S. National Institute of Standards and Technology (NIST) Sensitivity Typically 5 μA to 10 μA per 1,000 μmol s-1 m-2 Linearity Maximum deviation of 1% up to 10,000 μmol s-1 m-2 Response Time Less than 1μs (2 m cable terminated into a 604 Ohm load) Temperature Dependence ± 0.15% per °C maximum Cosine Correction Cosine corrected up to 82° angle of incidence Azimuth < ± 1% error over 360° at a 45° elevation Tilt No error induced from orientation Operating Temperature Range −40 °C to 65 °C Relative Humidity Range 0% to 100% RH, Non-Condensing Detector High stability silicon photovoltaic detector (blue enhanced) Sensor Housing Weatherproof anodized aluminum body with acrylic diffuser and stainless steel hardware; O-ring seal on the sensor base Size 2.36 cm diameter × 3.63 cm 0.93” diameter × 1.43”) Weight 24 g head; 60 g base/cable (2 m) with screws Cable Length 2 m, 5 m, 15 m, 50 m 6.5’, 16.4’, 49.2’, 164’)
LI-COR LI-190R – Quantum Sensor
Price range: $1,189.07 through $1,464.52 ex GST NZD
The LI-190R PAR Sensor is a high-precision tool designed for measuring photosynthetically active radiation. Its durable build, exceptional accuracy, and adaptability make it ideal for environmental monitoring and scientific research in both field and laboratory settings.
Please Note: To connect to the RXW-ANA-922 HOBOnet Analogue Input Mote, the Li-Cor 2420 Light Sensor Amplifier below is required.
