Product Name: Chlorophyll Tester

Product Description:

one.Instrument model: ST-A\\ST-B

two.Instrument functions
1: It does not affect plant growth and can quickly and non destructively detect live plants.
2: It can simultaneously measure plant nitrogen content, chlorophyll, leaf temperature, and leaf humidity and store them simultaneously, automatically calculating the average value of the four parameters.
3: The fully Chinese LCD display has functions such as system settings, historical data viewing, green environmental protection settings, time settings, and deletion settings.
4: The standard fertilization amount can be directly calculated using the measured plant nitrogen content.
5: The data saved in case of unexpected power outage will not be lost. The instrument is equipped with a rechargeable lithium battery and comes with night vision function.
6: The instrument comes with a USB interface, which can be connected to a computer to export data for easy management and analysis of plant nutrients.

three.Technical Parameter
1. Measurement range chlorophyll: 0.0-99.9SPAD
Nitrogen content: 0.0-99.9mg/g
Leaf surface humidity: 0.0-99.9RH% Leaf surface temperature:- 10-99.9℃
2. Measuring area 2mm * 2mm
3. Measurement accuracy of chlorophyll: within ± 3.0 SPAD units (SPAD value ranges from 0-50 at room temperature)
Nitrogen content: ± 5% Leaf surface humidity: ± 5%
Leaf surface temperature: ± 0.5 ℃
4. Repetitive chlorophyll: within ± 0.3 SPAD units (SPAD value between 0-50)
Nitrogen content: ± 0.5 Unit leaf surface humidity: ± 0.5 Unit leaf surface temperature: ± 0.2 ℃
5. The measurement time interval is less than 3 seconds
6. Data storage capacity 32KB
7. Power supply 4.2V rechargeable lithium battery
8. Battery capacity 2000mAh