Place of Origin
Shandong, China
Name
Soil fertilizer detector
Key words
Soil composition analyzer for school
Alternating current
220 ± 22V
DC
12V + 5V (use vehicle power supply or select built-in lithium battery)
Range and resolution
0.001-9999
Linear error
≤1% (0.01, copper sulfate detection)
Repeatability error
≤0.3% (0.003, potassium dichromate solution)
Instrument stability
less than 0.2% drift within three minutes