Sichuan Changhe Technology Co.,Ltd.
About
Founded in 2013 and operating as Zwinsoft (Tianjin Zwinsoft Technology), this Chinese high-tech environmental monitoring manufacturer holds over 110 intellectual property rights and a 100+ person team, with a joint sensor R&D center established with Nankai University. Their water quality line includes the ZWIN-WQMS10 full-spectrum online monitor measuring COD, BOD, TOC, total phosphorus, total nitrogen, and nitrate nitrogen; the ZWIN-TPN1006 dual-parameter total phosphorus/nitrogen analyzer; the ZWIN-COD1006 digital COD sensor covering COD, BOD, TOC, turbidity, and temperature; and the ZWIN-PH1006 pH sensor. Air quality monitoring spans the ZWIN-AQMS06 and AQMS08 micro-stations for SO2, NO2, O3, CO, PM2.5/PM10, and meteorological parameters, the BAM1006-M beta-ray dust monitor achieving 0.1 µg resolution, and the ZWIN-YC08 and ZWIN-DUST06 laser scattering particulate monitors. Gas detection covers the ZWIN-GasGuard06 and GasGuard06-H2 online detectors with 4-20mA/RS485 output, the ZWIN-PVOC06 portable VOC detector for industrial safety, and the ZWIN-FVOCs06 FID-based methane/non-methane total hydrocarbon analyzer. The ZWIN-CEMS06 continuous emission monitoring system measures SO2, NO, and O2 for ultra-low emission compliance. The ZWIN-NS06 noise detector covers 30-130 dBA with A/C/Z weighting. The ZWIN-YY06/YY08 monitors cooking fume emissions. Zwinsoft also produces autonomous inspection robots (wheeled, quadruped, and rail-mounted) with HD cameras, infrared thermal imaging, and gas sensors, and provides smart environmental management platforms for atmospheric grid monitoring, unorganized emission control, and carbon neutrality applications. The company holds ISO 9001, 14001, and 45001 certifications.
Key Products
Online spectrophotometric monitoring system measuring COD, BOD, TOC, total phosphorus, total nitrogen, and nitrate nitrogen in water.
Dual-parameter online automatic analyzer for simultaneous measurement of total phosphorus and total nitrogen concentrations.
Digital sensor measuring COD, BOD, TOC, turbidity, and temperature in water using spectrophotometric methods.
Glass electrode pH sensor with range 0-14 for continuous online water quality monitoring.
Compact air quality monitoring stations measuring SO2, NO2, O3, CO, PM2.5, and meteorological parameters for ambient air quality assessment.
Continuous particulate matter monitor using beta-ray attenuation for PM2.5, PM10, and TSP measurement with 0.1 microgram resolution.
Fixed gas detection unit with 4-20mA/RS485 output and relay alarm for continuous monitoring of hydrogen and other gases.
Continuous emission monitoring system measuring SO2, NO, and O2 for extractable ultra-low emission CEMS applications.
Explosion-proof portable detector for aromatic, ketone, aldehyde, and ammonia compounds for industrial safety and emergency response.
Flame ionization detector (FID) analyzer for continuous monitoring of methane and non-methane total hydrocarbons.
Online environmental noise monitoring system with 30-130 dBA range and A/C/Z frequency weighting for outdoor-rated continuous measurement.
Gas-sensitivity based monitors for cooking fume emissions, measuring fume concentration, particulates, and optional non-methane hydrocarbons.
Integrated IoT and big data platform for comprehensive environmental monitoring, decision support, and unorganized emission control across industrial zones.
Autonomous patrol robots equipped with HD cameras, infrared thermal imaging, and gas sensors for industrial facility monitoring and safety inspection.
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