Beijing KWF Sci-tech Development Co.,Ltd established in 2001 which is specialized in designing, producing and selling Laboratory Equipment & Environmental Detecting Instrument & Automation instrument & Ecological Instrument & Other Equipments. Products include ABS plastic shell Ultrasonic Cleaning machines, monofrequent Ultrasonic cleaner machines, PH meter, conductivity meter, soil nutrient rapid tester, soil moisture-temperature tester, chlorophyll tester, protable living leaf area meter, temperature, humidity recorder, portable agricultural environment detector, CO2 recorder, wind way and speed recorder, rainfall recorder, aflatoxin analyzer, nitrogen, phosphorus, fruit sclerometer, digital hand-held refractometers, water purification system, drying oven, incubator, spectrophotometer, polarimeter,...