Grower Tip
- Point the laser at the top of a leaf, not the air, to read true leaf VPD — the number your plants actually experience.
- Use the leaf-temp reading to set the leaf offset on a VPD-enabled controller so its automatic climate control is accurate.
- Take readings at canopy height at the same time each day to track how your VPD shifts through the light cycle.
Features
Reads air and leaf VPD, ambient and leaf temperature, and relative humidity to calculate precise VPD data.
Infrared sensing with 12-point laser positioning pinpoints the exact spot you're measuring across a range of distances.
Use its readings to set the leaf offset on VPD-enabled controllers for more accurate automatic climate control.
Emissivity adjusts from 0.1 to 1.00 to account for different leaf and surface types for greater accuracy.
Readings land in under 500ms and past measurements are saved so you can track climate changes over time.
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1
Set emissivity
Adjust the emissivity setting to suit the surface you're measuring for the most accurate reading.
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2
Aim at the leaf
Hold the gun at canopy height and point the 12-point laser at the top of a healthy leaf.
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3
Read the data
Take the leaf temp, air temp, humidity and VPD values shown on the display.
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4
Set the leaf offset
Enter the leaf-temperature offset into your VPD-enabled controller so it targets true leaf VPD.
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5
Track over time
Save and review past readings to see how your climate shifts and adjust devices accordingly.
What is VPD and why measure it?
Vapour pressure deficit combines temperature and humidity into one figure that reflects how easily plants transpire. Reading true leaf VPD helps you dial in conditions for healthy growth and nutrient uptake.
Does it work with AC Infinity controllers?
Yes. It's designed to help calibrate VPD-enabled smart controllers by measuring leaf offset, so the controller can target true leaf VPD when it triggers your fans, humidifier and other devices.
How accurate is the aim?
It uses infrared sensing with 12-point laser positioning and a 12:1 distance-to-spot ratio, so it reads a focused, accurate area across a range of distances.
What can it measure?
Air VPD, leaf VPD, ambient temperature, leaf temperature and relative humidity. Response time is under 500ms and it stores previous readings so you can monitor changes.
Description
A highly innovative laser thermometer gun designed to instantly measure leaf VPD, air VPD, ambient temperature, leaf temperature, and relative humidity to precisely calculate true VPD data.
Using these environmental figures, you can calibrate your smart controller so it can accurately detect the climate and trigger your grow devices at precise times.
This is the first of its kind to track the VPD (vapor pressure deficit) of your plants and the surrounding atmosphere, allowing you to make pinpoint adjustments for optimal nutrient uptake. It can also review past readings so you can closely monitor changes in your climate.
The sensor utilizes infrared technology to capture measurements using 12-point laser positioning, ensuring an accurate reading over a wide range of distances.
The programming can even adjust for a surface’s emissivity, ensuring greater accuracy by accounting for efficiency in emitting thermal radiation, which varies from surface to surface.
APPLICATIONS
This wholly unique instant environmental monitor measures VPD, temperature, and humidity levels to promote successful plant growth. Fit for use in horticultural settings like gardens, grow tents, grow rooms, and greenhouses to support ideal growing conditions. This meter can also aid in calibrating VPD-enabled smart controllers by helping to measure leaf offset for more precise leaf VPD readings.
KEY FEATURES
- A digital thermal gun designed to measure plant leaf VPD for optimized control over your grow environment.
- Captures environmental data that can be used to calibrate smart controllers that manage grow devices.
- First of its kind to measure air and leaf VPD, in addition to ambient temp, leaf temp, and relative humidity.
- Infrared technology utilizes 12-point laser positioning to precisely highlight your exact area of measurement.
- Automatically saves the historical data from your previous readings to track shifting climate conditions.
| Product Identification | |
| Manufacturer | AC Infinity Inc. |
| Product Name | VPD Thermometer |
| Product Model | AC-TRV3 |
| UPC Code | 819137024496 |
| Product Dimensions | |
| Total Dimensions | 5.94 x 4.05 x 1.77 in. (15.1 x 10.3 x 4.5 cm) |
| Product Performance and Technical Specs | |
| Sensor | Air/Leaf VPD, Air/Leaf Temp, Humidity |
| Distance:Spot Ratio | 12:1 |
| Temperature Range | -58 to 1022 °F |
| Emissivity | 0.1-1.00 |
| Response Time | <500ms |
| Product Manual | |
| Product Manual |
 PDF |
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