Handheld environmental recorder is a powerful collection, monitoring and processing system. It includes various environmental measurement parameters such as air temperature, humidity, wind speed, wind direction, rainfall, soil moisture, soil temperature, soil pH value, evaporation, light intensity, photosynthetically active radiation, carbon dioxide concentration, atmospheric pressure, EC conductivity, etc. Widely used in scientific research projects such as agriculture, forestry, tobacco industry, and water conservancy. This instrument can be freely combined and matched with multiple parameters to meet the various needs of customers. Each instrument can integrate 20 similar parameters simultaneously.
Parameter indicators

Index	Scope	Accuracy	Resolution
Temperature:	-40℃—120℃	±0.2℃	0.1℃
Humidity:	0—100%	±2%	1%
Wind speed:	0—60m/s	±5%	0.1m/s
Wind direction:	0—360°	＜7°	1°
Rainfall:	0-100mm/1m	±4%	0.2mm
Soil moisture:	0—100%	＜2%	0.1%
Soil temperature:	-20℃—100℃	±0.1℃	0.1°
Soil pH value:	0—14PH	0.1	0.1
Evaporation rate:	0—80mm	1mm	0.1mm
Light intensity:	0—400000Lux	±100Lux	10Lux
Photosynthetically active radiation:	0-2700µmolm-2·s-1	<5µmolm-2·s-1	1µmolm-2·s-1
Carbon dioxide concentration:	0—2000PPM	±30PPM	1PPM
Atmospheric pressure:	300—1100mBar	±1mBar	1mBar
EC conductivity:	0—20mS/cm	±1%	0.1 mS/cm

Functional features:
·This instrument is beautiful, compact and easy to carry, with a large dot matrix LCD display and a fully Chinese menu for easy operation.
·It can switch between automatic and manual modes with one click, and the collection interval can be set freely from 1 minute to 48 hours according to customer needs.
·Can be used for both AC and DC, and can also be used for mobile measurement and long-term field measurement
·The storage function is powerful, and this instrument uses SD card storage, which can store up to 5 million sets of data.
·Low power consumption, the DC battery provided by this instrument can last up to 12 hours when working in the field.
·If there is a power shortage or power outage, this instrument will automatically store data in the host without losing it.
·This instrument directly generates. txt documents for customers to read directly.
·Each sensor probe has consistency and does not directly affect its accuracy.
Instrument measurement parameters:
Test time: ≤ 2 seconds Storage method: TF card (4G)
Record interval time: 1 minute to 48 hours, continuously adjustable communication interface: USB
Battery: DC 7.4V lithium battery