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Product?description:

QT-AT?502?Chlorophyll?Meter?can?measure?chlorophyll?content?of?plants.?Chlorophyll?content?is?an?important?index?of?plant?growth.?This?instrument?is?powerful,?portable,?and?easy?to?use.?It?does?no?harm?to?plants.?Users?just?need?to?put?a?leaf?tissue?larger?than?3mm?in?the?aperture,?and?then?press?the?button?to?get?the?chlorophyll?content?reading.

QT-AT?502?Portable?Chlorophyll?Meter

Features:

·?The?measurements?can?be?designated?to?up?to?500?plant?names;

·?With?a?storage?of?5000?data;

·?Be?able?to?delete?recent?or?all?of?the?data

·?Designated?plant?names?can?be?uploaded?to?the?instrument?from?a?computer?and?data?can?be?downloaded?to?a?computer?via?USB?interface.

?

Specifications

Measurement?System

Optical?Density?Difference?between?wavelength?of?650?nm?and?940?nm

Measurement?range

0?to?99.9?SPAD

Precision

Standard?Deviation?less?than?1

Button

4?buttons,?one?is?for?measurement

Display

2?lines?x?16?characters

Data?Storage

5000?data,?including?data?with?designated?plant?names;?The?name?is?up?to?32?characters?(only?only?28?characters?shown);

Power?Source

2?AA?1.5V?batteries

Battery?life

5,000-30,000?measurements?per?set?of?2?batteries,?depending?on?the?usage?and?battery?type;

Measurement?time

Less?than?1?second;

Dimension

164?x?78?x?49mm?(W×H×D);

Weight

225g?(without?batteries);

Interface

USB

Automatic?shutdown

1?minute?without?operations?(10?minutes?with?USB?connection)

?

Software:

The?software?can?upload?designated?plant?names?to?the?instrument,?also?the?data?can?be?downloaded?to?the?computer?via?USB?interface.?The?software?can?run?successfully?under?Windows?2000/XP/Vista?system.