PG200N Spectral PAR Meter

Indoor agriculture by the numbers – Lighting Data Analytics

Indoor agriculture is, more than ever, “farming by the numbers”, and data-analytics is crucial to measure important lighting conditions to help you assess, analyze and evaluate to improve production and conserve resources.  Introducing the PG200N Spectral PAR Meter.

Handheld PG200N Spectral PAR Meter

▸PG200N File Downloads
▸Need Calibration
▸Need Product Support

PG200N Spectral PAR Meter

(click image to download 360 view)


The PG200N is a Spectral PAR meter used to measure the quantity and quality of light for a new generation of indoor farmers who use artificial lighting as a substitute or complement to sunlight.

Light is formless and hard to measure.  And yet, as an indoor farmer, it’s a crucial to get your lighting right; quantity, intensity, color and duration (diurnal and seasonal rhythms).  These are the data components of sunlight that are the challenges of artificial lighting to emulate.

A PAR meter can provide you reliable measurement with comprehensive data tools to help you collect, analyze, and evaluate light data to help you understand your light-to-plant relationship and assist you in making better decisions for your business.


Learn about PG200N in 2 min 24 sec

Specs at-a-glance

Specs at-a-glance
Wavelength Range350 to 800 nm
Measurement Range1. 70 ~ 150,000 lx
2. 0.5~1,000 W/m2 (Irradiance)
3. 1~3,000 µmol/(m2*s) (PPFD)
Measuring Capabilities
  1. Illuminance(Lux)/Foot Candle(fc)
  2. Correlated Color Temperature(CCT)
  3. Photosynthetically Active Radiation (PAR)
    1. PPFD(400nm~700nm)
    2. PFD-R(600nm~700nm)
    3. PFD-G(500nm~600nm)
    4. PFD-B(400nm~500nm)
    5. PFD(380nm~780nm)
    6. PFD-UV(350nm~400nm)
    7. PFD-FR(700nm~800nm)
    8. PFD-B:G Ratio (400~500nm:500~600nm)
    9. PFD-R:FR Ratio (600~700nm:700~800nm)
  4. Phytochrome Photostationary State(PSS)
  5. Temperature (℃)*7
  6. Relative Humidity (% RH)*7
Display4.3" 800X480 Capacitive Touch LCD
Dimensions190 x 81.7 x 29.5 mm(H x W x D)
Weight (with Batteries)280 g ± 10 g
Data FormatExcel Data and Jpg Images (screen capture)

Next-Gen Farmer – Data Analytics

PG200N is focused on data:

  • Conforms to JIS (Japan) and DIN (Germany) industry standards
  • Ergonomic Design for collecting data in a farming environment
  • Tools for numerical and spectral representation of plant-light relationships.
  • Powerful Comparative Analytics
  • Seamless connectivity to other digital media and software

▸ Read on about Indoor Agriculture

Numerical and Graphical Data

PG200N conforms to data measurement standards for precision and consistency.

PG200N Directional Reponse is compliant with:

JIS C 1609-1:2006 (Japan) Class AA

DIN 5032 Part 7 Class B (Germany)

These standards ensure that your data is accurate, consistent and comparable with the majority of Important organizations from around the world.

Ergonomic design for steady capture and accurate data measurement

The PG200N is equipped with a detachable, cabled head sensor that can reach under inconvenient positions under shelving.

Subtle hand movements during capture can distort data.  PG200N has a built in G-sensor (gravity motion sensor) to stabilize the capture to avoid any sensor rotation (axial shifts) that can present as inaccuracies in the data. 

The sensor head is also level-IP66 waterproof and dustproof to further avoid distorted data in wet, humid conditions.

Power of Comparative Data Analytics

Light and color are very subjective and it’s hard to assess your situations just by looking at numbers.  The PG200N is designed with comparative analytics allowing you side by side comparisons, which helps you evaluate data more objectively.


Side-by-side light comparisons when purchasing lights

Compare plant requirements superimposed over light spectrum

Grid Capture and Report – measure/compare lighting over large area

Sunlight, Seasons, Environment Data

Most plants have evolved to adapt to very specific conditions and it’s much more than sun, water and soil.  PG200N provides features that help you monitor and provide metrics to gauge the overall conditions, including seasonal changes in light (PSS) and also temperature and humidity (Thermo-Hygro Cable).

▸Read on about PSS

▸Read on Thermo-Hygro Cable

PSS is the metric to gauge seasonal changes in light

Optional Thermo-Hygro Cable accessory – measures humidity & temperature

Customizing color wavelength ranges for different classification of plants.

Different plants are sensitive to different ranges of wavelengths (color).  The PG200N allows you to customize those color ranges so you can measure PFD, PPFD as it pertains to wavelength ranges for individual plant classifications.

Connect-up for Big View & Data Analytics

One of our most popular features.  The PG200N can connect to mobile and PC devices through USB cable or Wireless, for full screen viewing, remote control, data collection and export to popular software.

▸Read about our Apps

Grow Light PAR Meter Handbook (Get It!)

Indoor Farming and Data Analytics

It’s hard to measure light, but you need to get light right in an indoor farming environment.  It’s all about numbers and a good spectrometer will produce reliable and consistent information to help farmers produce better results while helping to conserve resources. 

Handbook Series

The Flicker Handbook

Everything thing you need to know about Flicker, an insidious, potentially serious lighting artifact impacting visual safety for public places like hospitals, offices, libraries, and more...

▸ Get it!

About UPRtek

United Power Research and Technology

UPRtek (est. 2010) is a manufacturer of portable, high-precision light measurement instruments; Handheld Spectrometers, PAR meters, Spectroradiometers, Light Calibration Solutions.

UPRtek HQ, R&D and manufacturing are all based out of Taiwan, with Worldwide representation through our certified Global Resellers.

▸ Read on


Medical Setting using LED or Fluorescent Lights

GPEC Greenhouse Horticulture & Plant Factory Exhibition/ Conference

GPEC is a leading international exhibition focused on the latest advancements and technologies in greenhouse horticulture and plant factories. We are excited to announce that our business partner, ARIANETECH PTE LTD, will be participating in the GPEC 2024 in Japan. They will have a booth at the exhibition where they will showcase our Handheld Spectral PAR Meter, PG200N. We encourage all international visitors attending this exhibition to visit Booth H-07 and explore our innovative PG200N.