Grow-light intensity
“How much light reaches my plants right now?”
Use a handheld PAR/PPFD meter when you want fast spot checks, fixture comparisons or coverage mapping.
Measure first. Adjust with evidence.
Find the right meter for the light or environment you actually need to understand.
AquaHorti makes PAR/PPFD, DLI, LUX/FC, CCT, blue-light, UVA, red/NIR, solar irradiance and environmental measurement tools, plus lighting and ventilation controls for grow spaces and reef aquariums.
Clear measurement purpose
Model-specific specifications
Real-world workflows
Choose by the job
Which AquaHorti tool should I choose?
Do not start with a model number. Start with the decision you need to make. These are the shortest paths to the right product family.
Daily light
“What did my plants receive across the whole day?”
Use a logger when one spot reading is not enough and you need DLI history and light trends over time.
Grow environment
“Is light the only variable I should be checking?”
Measure PAR together with CO₂, temperature, humidity and VPD when the full grow environment matters.
Reef aquarium
“What light actually reaches my corals underwater?”
Measure at coral level rather than relying on fixture specifications or one reading above the aquarium.
Indoor / commercial lighting
“Is this room bright enough — and is the light evenly distributed?”
Measure LUX/FC, CCT, blue-light parameters and multi-point illuminance when evaluating desks, rooms, displays or lighting installations.
UV / optical sources
“How strong is this specific UV, red or NIR source?”
Choose by wavelength and application: sunlight UV, 385/405 nm near-UV, 660/850 nm red/NIR, or dental curing light.
Control instead of measure
“I need to automate the light or airflow.”
Choose a grow-light/fan controller for horticulture, or a multi-channel LED fixture for reef lighting.
AquaHorti Blog & Measurement Guides
Do not just buy a meter. Learn what the number means.
The AquaHorti Blog connects measurement data to real decisions in greenhouses, grow rooms and reef aquariums. It is a growing library covering PAR, CO₂, VPD, coral lighting, spectral choices and practical measurement workflows.
Measurement knowledge is part of the product.
A good instrument gives you a number. A useful guide helps you understand where to measure, what can change the result, and which other variables may matter. That is why the Blog is now a core part of AquaHorti rather than a hidden link.
Greenhouse crop guides
PAR / CO₂ / VPD education
Reef-lighting articles
Measurement workflows
Horticulture fundamentals
The Relationship Between PAR, CO₂, and VPD in Plant Growth
Understand why light intensity is only one part of the crop environment.
Greenhouse crop guide
PAR, CO₂, and VPD for Greenhouse Tomatoes at Different Growth Stages
A crop-specific example of turning measurements into stage-by-stage decisions.
Reef lighting
The Science of PAR: Finding the “Sweet Spot” for Your Corals
Why visual brightness alone cannot describe the light reaching a coral.
Complete product range
All AquaHorti products, grouped by what they help you do.
Every product is shown here. Grouping by application makes the range easier to scan for people and gives search engines and AI systems clearer context about each model.
Horticulture & grow-light measurement
From instant PPFD to daily DLI and complete crop-environment checks.
Grow-light meter
AH-Quantuv PAR + UVA Meter
Best for: comparing grow-light intensity and spectral components.
- PAR / PPFD measurement for grow lights
- UVA irradiance measurement
- Separate Blue / Green / Red PAR views and recorded readings
PAR / DLI logger
AH-PARDLI PAR/DLI Logger
Best for: seeing daily light trends instead of one instant reading.
- Tracks PAR throughout the day
- Automatic DLI calculation with up to 180 days of history
- Bluetooth app, light curves and CSV export
Grow environment
AH-200 PAR / CO₂ / VPD Monitor
Best for: checking light together with the surrounding crop environment.
- PAR, CO₂, temperature and relative humidity
- VPD for greenhouse, grow-tent and indoor-room checks
- Data logging for changes over time
Reef aquarium measurement & lighting
Measure the underwater light environment, then control the fixture that creates it.
Underwater meter
AH-Reef PAR + UVA Meter
Best for: mapping the light your corals receive at their actual positions.
- Underwater PAR and UVA measurement
- R / G / B spectral balance
- IECF correction and up to 99 stored measurement points
Reef LED light
MegaReef 100 Reef LED Light
Best for: reef keepers who want seven-channel app-controlled lighting.
- Seven independently adjustable LED channels
- Bluetooth app and programmable daily operation
- Primary-Secondary multi-light synchronization
Indoor & commercial lighting measurement
Quantify illuminance, color temperature, blue-light parameters and lighting distribution instead of judging brightness by eye.
LUX / CCT / Blue Light
AH-300 Light Meter
Best for: evaluating indoor lighting quality and illuminance distribution beyond one brightness reading.
- 2–180,000 lux with LUX and foot-candle display
- CCT, blue-light irradiance and blue-light percentage
- Multi-point LUX recording, CSV export and supported white-LED spectrum preview
UV & optical irradiance meters
Choose by wavelength and source rather than by a generic “light meter” label.
Sunlight UV
AH-Sunuvi UV Index + Dose Meter
Best for: monitoring outdoor UV intensity and accumulated UV exposure.
- Real-time sunlight UV Index
- UV dose accumulation
- Selectable dose reminder with audible alert
385 / 405 nm UV
AH-NUV UV Meter
Best for: checking resin 3D-printer UV intensity and uniformity.
- 385 nm and 405 nm UV irradiance measurement
- Compare center and edge intensity
- Bluetooth phone readings; no internet required for connection
Red / NIR
AH-RDNIR 660 / 850 nm Meter
Best for: comparing red and near-infrared output by distance and position.
- Separate 660 nm red and 850 nm NIR readings
- R, IR and combined R+IR display
- mW/cm² or W/m² with up to 99 stored readings
Dental curing light
AH-DCLM Dental Curing Light Meter
Best for: checking blue and UVA output from dental curing lights.
- Optical irradiance measurement for curing-light checks
- Blue and UVA measurement workflow
- Designed to compare output using a consistent test position
Solar measurement & grow-space control
Tools for field irradiance checks, grow-light schedules and airflow automation.
Solar irradiance
AH-SOL Solar Power Meter
Best for: PV checks, outdoor research and direct solar irradiance measurements.
- Solar irradiance readout in W/m²
- Data Hold
- Up to 99 stored readings for field comparisons
Grow-space controller
AH-LightFan Controller
Best for: combining grow-light control with two fan channels in one Wi-Fi system.
- Compatible grow-light control and scheduling
- Two fan-control channels
- Temperature and humidity sensing with Wi-Fi app control
Wi-Fi automation
Wi-Fi LightFan Controller
Best for: automating inline duct fans and grow-light operation.
- Wi-Fi schedules and condition-based fan rules
- Grow-light sunrise/sunset and timed operation
- Designed for grow-tent environmental control
Why AquaHorti
Good measurement starts with a clearly defined question.
A meter is useful only when you know what it measures, where to place it and how to interpret the result. AquaHorti product pages are organized around those decisions rather than around feature lists alone.
Before you buy
Use the product pages to answer four practical questions:
- What physical quantity does this model measure?
- What wavelength range, unit or environmental variable applies?
- Where should the sensor be placed for a meaningful reading?
- Is the result an instant reading, a stored map or a trend over time?
When two products look similar
Choose based on the decision you need to make, not the longest specification list.
- AH-Quantuv: fast grow-light PAR/UVA/RGB comparisons
- AH-PARDLI: full-day PAR and DLI history
- AH-200: PAR plus CO₂, temperature, humidity and VPD
- AH-Reef: underwater reef-light measurement at coral level
- AH-300: LUX/FC, CCT, blue-light and multi-point indoor lighting checks
Quick answers
AquaHorti product FAQ
Short answers to the questions that usually determine which product fits the job.
Which AquaHorti meter is best for grow lights?
Choose AH-Quantuv for handheld PAR/PPFD, UVA and Blue/Green/Red PAR comparisons. Choose AH-PARDLI for day-long PAR logging and DLI history. Choose AH-200 when you need PAR together with CO₂, temperature, humidity and VPD.
What is the difference between AH-Quantuv and AH-PARDLI?
AH-Quantuv is built for detailed spot measurements and grow-light comparisons, including UVA and separate Blue/Green/Red PAR components. AH-PARDLI is built for measuring how PAR changes across the day, calculating DLI and keeping long-term history.
Which AquaHorti product is for reef aquariums?
AH-Reef measures underwater PAR and UVA at coral level and supports multi-point mapping. MegaReef 100 is a seven-channel reef LED light with Bluetooth app control; it is a lighting product rather than a PAR meter.
Which AquaHorti meter is for indoor, office or commercial lighting?
Choose AH-300 when you need LUX/foot-candle, CCT, blue-light parameters and multi-point illuminance recording for desks, rooms, displays or lighting installations. Its spectrum preview has specific white-LED compatibility limits, which are explained on the AH-300 page.
Which AquaHorti meter should I use for UV or infrared light?
Use AH-Sunuvi for sunlight UV Index and accumulated UV dose, AH-NUV for 385/405 nm near-UV sources such as resin 3D printers, AH-RDNIR for 660 nm red and 850 nm near-infrared sources, and AH-DCLM for dental curing-light checks.
Do all AquaHorti products require an app?
No. App requirements vary by model. For example, AH-PARDLI uses a Bluetooth app for light curves, history and CSV export, while several handheld meters provide their primary readings directly on the device.
Does AquaHorti only make horticulture products?
No. The product range includes horticulture and grow-light tools, indoor and commercial lighting measurement, reef-aquarium measurement and lighting, sunlight and optical irradiance meters, dental curing-light measurement, and solar irradiance tools.
Start with the measurement question. Then choose the tool.
Browse the complete range above or open a model page for specifications, workflow, limitations and purchase options.