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VPD Chart

Vapor pressure deficit (VPD) is extremely important for growing plants. This chart will help you ensure you grow is maintaining a great VPD level.

VPD helps you identify the correct range of temperature and humidity to aim for in your grow space. With VPD you can achieve the best results while avoiding pest and environmental problems. VPD also controls plant transpiration rates, stomata opening, CO2 uptake, nutrient uptake, and plant stress.

  • 24" x 36" VPD poster/chart with glossy UV coating
  • Chart assumes a -2° leaf surface temperature
  • Ships separately, secured in a thick poster tube

For more info on VPD, check out our VPD guide that includes an overview of the importance of VPD and free digital versions of our chart & calculator: pulsegrow.com/vpd

SHIPS SEPARATELY FROM OTHER PRODUCTS
All credit card purchases will be charged by Pulse Grow.

Have a question or need help buying? Click here to chat.

Customer Reviews

Based on 52 reviews
81%
(42)
10%
(5)
2%
(1)
6%
(3)
2%
(1)
D
D.S. (Oregon, United States)
Great product.

It would be easier for my old eyes if there was no printing over the humidity levels on top of chart.

v
v.s. (North Carolina, United States)
i like it .

looks good beside being useful.

V
Vincent

Perfect chart for keeping vpd in check easy to understand and a nice addition to the grow room.

J
J.P.

Love it. Great visual to teach with

E
E.S. (New York, United States)
VPD

I use this chart every day. I love it.

Glad you're loving the chart!

Which Grow Monitor Is Right For You?

Pulse One Pulse Pro
Recommended for
Recommended for Growers who want to use only batteries. Veg Rooms, Dry Rooms. Growers who use CO2 and/or optimize light intensity. Flower Rooms.
Key Features
Temp, RH, VPD, Dew Point, Basic Light Data
Temp, RH, VPD, Dew Point, Basic Light Data
CO2, Advanced Light Data (PAR, PPFD, DLI, Spectrum)
CO2, Advanced Light Data (PAR, PPFD, DLI, Spectrum)
Handheld PAR Reader and Spectrometer
Handheld PAR Reader and Spectrometer
Easy to Use App
Easy to Use App
Custom Alerts
Custom Alerts
Industry-leading US-based support
Industry-leading US-based support
Fast and Free US Shipping
Fast and Free US Shipping
No-hassle Returns and Warranty
No-hassle Returns and Warranty
Connectivity
Connectivity WiFi WiFi
Coverage
Coverage 50-250 ft²
(5-25 m²)
50-250 ft²
(5-25 m²)
Power Options
Power Options 2x AA Batteries or AC Wall Power AC Wall Power

Customer Reviews

Based on 52 reviews
81%
(42)
10%
(5)
2%
(1)
6%
(3)
2%
(1)
D
D.S. (Oregon, United States)
Great product.

It would be easier for my old eyes if there was no printing over the humidity levels on top of chart.

v
v.s. (North Carolina, United States)
i like it .

looks good beside being useful.

V
Vincent

Perfect chart for keeping vpd in check easy to understand and a nice addition to the grow room.

J
J.P.

Love it. Great visual to teach with

E
E.S. (New York, United States)
VPD

I use this chart every day. I love it.

Glad you're loving the chart!