atLEAF handheld chlorophyll meters

Products

atLEAF CHL BLUE Chlorophyll meter with USB and Bluetooth This device can store up to 9554 plant measurements, 490 plant names and can be remotely managed through Bluetooth with a free mobile app...

atLEAF CHL PLUS Chlorophyll meter with USB This device can store up to 9554 plant measurements, 490 plant names and can be interfaced through a USB port to a PC using the atLEAFSoft software for Windows...

atLEAF CHL STD Chlorophyll meter The meter compares the transmission of light in red and near infrared wavelengths in order to give a measure of chlorophyll content in leaves. This device can store up to 64 plant measurements....

atLEAFSoft Windows Software atLEAFSoft is an all-in-one software providing a comprehensive tool of functions which enables you to transfer, acquire measures from atLEAF devices, to view, analize and store data...

atLEAFUsb App Free app for macOS This app allows to upload names, download measures and calibrate the atLEAF CHL PLUS or BLUE meters when connected through USB.

atLEAF App iOS and Android free app for mobiles This app is a powerful tool for farmers and agronomists. It implements the Bluetooth® interface for atLEAF BLUE device, allowing to remotely command it and to acquire and analyse the measure data.


Calibration and characterisation of four chlorophyll meters and transmittance spectroscopy for non-destructive estimation of forest leaf chlorophyll concentration Notably, our results revealed that even low-cost chlorophyll meters such as the atLEAF CHL PLUS and PhotosynQ MultispeQ V1.0 can provide similar (and in some cases, stronger) relationships with destructively-determined LCC when compared with well-established instruments such as the Konica Minolta SPAD-502+ and Opti-Sciences CCM-200. In the case of the atLEAF CHL PLUS, this is despite the fact that the instrument does not clamp the leaf (which could allow the ingress of ambient light and slight movements of the leaf). Similar results were presented by Zhu et al. (2012), who found atLEAF CHL PLUS measurements demonstrated no significant effects associated with irradiance or time of day. Luke A. Brown , Owen Williams, Jadunandan Dash School of Geography and Environmental Science, University of Southampton, Highfield, Southampton, SO17 1BJ, UK

Notably, our results revealed that even low-cost chlorophyll meters such as the atLEAF CHL PLUS and PhotosynQ MultispeQ V1.0 can provide similar (and in some cases, stronger) relationships with destructively-determined LCC when compared with well-established instruments such as the Konica Minolta SPAD-502+ and Opti-Sciences CCM-200. In the case of the atLEAF CHL PLUS, this is despite the fact that the instrument does not clamp the leaf (which could allow the ingress of ambient light and slight movements of the leaf). Similar results were presented by Zhu et al. (2012), who found atLEAF CHL PLUS measurements demonstrated no significant effects associated with irradiance or time of day.

Luke A. Brown , Owen Williams, Jadunandan Dash
School of Geography and Environmental Science, University of Southampton, Highfield, Southampton, SO17 1BJ, UK

Papers

Estimating Nitrogen and Chlorophyll Status of Romaine Lettuce using SPAD and atLEAF R O MENDOZA-TAFOLLA, P JUAREZ-LOPEZ, ... SPAD and atLEAF meters can be used to ... estimate the N status of lettuce, ... In addition, atLEAF meter is currently more affordable than SPAD meter.

...chlorophyll content for Hevea brasiliensis Müll. Arg. Leaves Cahyo, Murti, Putra, Nuringtyas, Fabre, Montoro Rubber leaves index values observed by SPAD-502 and atLEAF CHL PLUS were closely correlated,hence both of the devices can substitute each other.

Comparing SPAD and atLEAF values for chlorophyll assessment in crop species Zhu, J., Tremblay, N. and Liang There were significant correlations between SPAD or atLEAF values on the one hand and laboratory Chl content on the other hand....

IN-FIELD PLANT MONITORING AS A TOOL FOR N MANAGEMENT IN SMALL GRAINS Mark Lundy, Steve Wright, Steve Orloff, Robert Hutmacher The AtLeaf meter successfully distinguished between wheat growing under different N and water conditions....

Using handheld chlorophyll meters to monitor leaf senescence A. Gallinat, L. Garrison, and R. Primack There is a very strong correlation between atLEAF and SPAD-502 chlorophyll readings for ... The point colors reflect the color of the leaf measured(R2=0.98)...

Use of the atLEAF+ chlorophyll meter for a nondestructive estimate of chlorophyll content E.V. NOVICHONOK*,+, A.O. NOVICHONOK**, J.A. KURBATOVA***, and E.F. MARKOVSKAYA** the atLEAF+ Chl meter is a cheap and convenient tool for a quick nondestructive estimate of the Chl content...

Chlorophyll and nitrogen determination in coconut using a non-destructive method K. B. Hebbar , P. Subramanian, T. L. Sheena, K. Shwetha, P. Sugatha, M.Arivalagan ... The atLeaf chlorophyll meter provided good estimates for chlorophyll concentrations in coconut, with coefficients...

Download all the papers and reviews on the atLEAF chlorophyll meter Click to go to the download area...
Videos

atLEAFGeo Available with atLEAFSoft PRO, diplays measures acquired with free Atleaf App for mobiles devices, connected through Bluetooth with CHL BLUE meters: displays measures map, histogram, regression, trends

atLEAF CHL PLUS Repeatability Tested on 303 measures with an optical filter.
Min value: 36.1
Max value: 36.2
Std Dev: 0.046
CV: 0.13%

Curves and Parameters The video shows how to select, display and sort measures parameters.

USB connection with device Video contains examples of atLEAFSoft PRO USB commands: device connection, time sync, remote measures, measures download and names upload to device.


Calibration and characterisation of four chlorophyll meters and transmittance spectroscopy for non-destructive estimation of forest leaf chlorophyll concentration Notably, our results revealed that even low-cost chlorophyll meters such as the atLEAF CHL PLUS and PhotosynQ MultispeQ V1.0 can provide similar (and in some cases, stronger) relationships with destructively-determined LCC when compared with well-established instruments such as the Konica Minolta SPAD-502+ and Opti-Sciences CCM-200. In the case of the atLEAF CHL PLUS, this is despite the fact that the instrument does not clamp the leaf (which could allow the ingress of ambient light and slight movements of the leaf). Similar results were presented by Zhu et al. (2012), who found atLEAF CHL PLUS measurements demonstrated no significant effects associated with irradiance or time of day. Luke A. Brown , Owen Williams, Jadunandan Dash School of Geography and Environmental Science, University of Southampton, Highfield, Southampton, SO17 1BJ, UK

Luke A. Brown , Owen Williams, Jadunandan Dash
School of Geography and Environmental Science, University of Southampton, Highfield, Southampton, SO17 1BJ, UK

Selling Terms & Conditions

US Shipping Rates Items are shipped via Priority Mail. Average delivery time is 3-7 days...

International shipping rates Items are shipped via International Priority Mail. Average delivery time is 1-2 weeks...

Return & Shipping Policy Every device is warranted to be free of defect in materials and workmanship for a period of...

Privacy Your privacy is important to us. We understand the sensitivity of the personal information we collect from our customers...
About

Mission Our mission is to produce state of the art, low cost plant monitoring instruments.

Contact Us moc.faelta@troppus ,moc.neergtf@ofni
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Buy atLEAF CHL BLUE

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Buy atLEAF CHL PLUS

Buy atLEAFSoft PRO

atLEAF CHL PLUS/BLUE Accuracy

Max error : -0.5 ... 0.5

Mean error : 0.2

Std Dev on error : 0.2

atLEAF CHL PLUS Repeatibility

Min value: 36.1

Max value: 36.2

Std Dev: 0.046

How to find your device Serial Number

Download atLEAFSoft ver.1.30

Download atLEAFSoft64 ver.2.4

Download atLEAF App

Download PDF flyers:

atLEAF CHL BLUE flyer
atLEAF CHL PLUS flyer
atLEAF CHL STD flyer
atLEAFSoft flyer

atLEAF+ (Discontinued)

Support pages

Zhu, J., Tremblay, N. and Liang

"There were significant correlations between SPAD or atLEAF values on the one hand and laboratory Chl content on the other hand..."

Cahyo, Murti, Putra, Nuringtyas, Fabre, Montoro

"Rubber leaves index values observed by SPAD-502 and atLEAF CHL PLUS were closely correlated, hence both of the devices can substitute each other"

Mark Lundy, Steve Wright, Steve Orloff, Robert Hutmacher

"The AtLeaf meter successfully distinguished between wheat growing under different N and water conditions..."

A. Gallinat, L. Garrison, and R. Primack

"There is a very strong correlation between atLEAF and SPAD-502 chlorophyll readings for Vi Viburnum carlesii leaves. The point colors reflect the color of the leaf measured (R2=0.98)..."

E.V. Novichonok, A.O. Novichonok, J.A. Kurbatova And E.F. Markovskaya

"the atLEAF+ Chl meter is a cheap and convenient tool for a quick nondestructive estimate of the Chl content..."

K. B. Hebbar , P. Subramanian, T. L. Sheena, K. Shwetha, P. Sugatha, M.Arivalagan ...

"The atLeaf chlorophyll meter provided good estimates for chlorophyll concentrations in coconut..."

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