Is this a real par meter, or is it a modified lux meter with some filters and software that interpolates the data? sensor looks like a lux sensor.

I compared this meter to the meter by Apogee. This meter was 30-40% high for pink/purple LEDs. Additionally the build quality is poor.

Can i use this to measure par underwater (sensor only) in my aquarium?

It is not designed for that, so it is very doubtful. Obviously, if you ruined the sensor by submerging it, this would void the warranty.

I’m trying to perform a successive measurement log but it shuts off after two minutes. How do I keep the meter on?

Yes, this is a real PAR meter. In LOG mode it shuts off every two minutes to save electricity, if you perform a successive measurement do not use in LOG mode.

May I fix sensor at covered struct for measuring every day? It will be exposed to sun light every day.

That makes no sense to me, why would anyone what to fix this to a structure at all times? One it’s not waterproof, second the sensor would get ruin, third the battery wouldn’t last that long and would cut off. I would say no don’t mount this to anything, it’s meant to be used by hand at the moment.

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Hydrofarm Quantum PAR Digital Light Meter Micromol Sensor

Hydrofarm Quantum PAR Digital Light Meter Micromol Sensor

Product ID: 24424777

🌈Constant linear response for LED accuracy

📈Data logging via mini-USB & proprietary software

🔋Low power consumption with battery indicator

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£243.11

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Description

🌟 Illuminate your grow game with unmatched precision!

PLUG PLAY READY - No assembly required—start measuring instantly
SEAMLESS DATA CAPTURE - Effortless data logging with mini-USB and Hydrofarm software
SMART POWER MANAGEMENT - Built-in low battery indicator keeps you ahead of downtime
TRUE TO LIGHT ACCURACY - Constant linear response curve ensures flawless LED light measurement
PRECISION BEYOND LIMITS - Measures up to 10,000 µmol/m²/s—5x the range of typical meters

The Hydrofarm Quantum PAR Digital Light Meter is a handheld, highly accurate sensor measuring photosynthetically active radiation (PAR) from 400-700 nm, with an extended range up to 10,000 µmol/m²/s. Featuring low power consumption, built-in battery alerts, and a constant linear response curve for superior LED light accuracy, it supports data logging via mini-USB and proprietary software compatible with Windows XP, 7, and 10. No assembly needed, making it the go-to tool for professional growers and researchers.

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TrustScore 4.5 | 7,300+ reviews

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Good experience, but the tracking updates could be better.

2 months ago

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Customer service was outstanding when I had questions about the product.

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