Overview
Environmental test instruments are designed to monitor, measure, and analyze environmental parameters that affect human health, industrial processes, and ecosystem balance. These tools help researchers, engineers, and regulators ensure compliance with safety standards, maintain process quality, and detect potential hazards in diverse environments. With advanced sensing and data logging capabilities, they provide accurate and reliable information for decision-making in critical applications. Headquartered in New York City and Toronto, Canada, GAO Tek Inc. is ranked among the world’s top 10 suppliers of advanced B2B technologies. Alongside our sister companies GAO Research Inc. and GAO RFID Inc., we form GAO Group, serving leading universities, Fortune 500 companies, government agencies, and R&D organizations across North America for over four decades. GAO Tek’s environmental test instruments are backed by rigorous R&D investment, stringent quality controls, and expert support both remotely and onsite, ensuring high-performance solutions for professionals worldwide.
Below is a list of all GAO Tek’s Environmental Testing and Measurement products:
Hydrogen Gas Leakage Detector – GAOTek
Handheld Fruit Powders Colorimeter – GAOTek
GAOTek Fruit And Veg Colorimeter
 Electronic Stainless Steel High Pressure Anemometer – GAOTek
 GAOTek Portable 6 in 1 gas detector with pump – 6 Level Adjusted Pump
 GAOTek Thermometer Gun Laser
16-Channel Digital Gas Alarm Controller – GAOTek
16-Channel Digital Oven Thermometer Temperature Data Logger – GAOTek
2-in-1 HCHO & TVOC Air Pollution Detector with LCD & API Monitoring – GAOTek
3-Cup Industrial-Grade Waterproof Anemometer – GAOTek
3-Cup Wind Anemometer – GAOTek
4 In 1 Gas Detector Analyzer with Specifically Methane-GAOTek
4-in-1 Gas Detector w/ Vibration, Light Alarms, Pump – GAOTek
4G Digital Universal Multimeter Data Logger for Temperature – GAOTek
4G Single – Use IoT Temperature and Humidity Data Logger – GAOTek
5-in-1 Weather Station With Anemometer – GAOTek
Absolute And Gauge Pressure Anemometer – GAOTek
Absolute Pressure Transmitter Anemometer – GAOTek
Adjustable Flow Gas Analyzer with Data Logging GPS Multi-Function – GAOTek
Adjustable Flow Gas Analyzer with Data Logging GPS Multi-Function – GAOTek
Advanced 320×240 Thermal Imaging Camera for Inspection & Monitoring – GAOTek
GAO Tek’s products of Environmental Testing and Measurement are organized as follows:
Anemometers
Anemometers are instruments used to measure wind speed and airflow. GAO Tek’s anemometers are engineered with digital sensors and portable designs, providing fast and precise readings for indoor and outdoor applications.
They are applied in HVAC system monitoring, meteorology, wind energy assessments, and environmental studies.
Alternative names include wind meters, airflow testers, and velocity meters.
Colorimeters
Colorimeters measure the absorbance of light to determine the concentration of substances in solutions. GAO Tek offers colorimeters with advanced optics and user-friendly interfaces, ensuring accurate laboratory and field measurements.
Applications include water quality testing, food and beverage analysis, and chemical formulation.
They are also known as photometers, optical analyzers, or color density meters.
Gas Analyzers
Gas analyzers detect and quantify the presence of gases in air or process streams. GAO Tek provides portable and stationary analyzers with high sensitivity, multi-gas detection, and real-time monitoring.
They are essential in industrial safety, emissions monitoring, laboratory testing, and environmental compliance.
Alternative names include gas detectors, gas monitors, and air analyzers.
Hygrometers
Hygrometers measure humidity levels in air or gases. GAO Tek’s hygrometers deliver precise readings with digital sensors and rugged housings, suitable for challenging environments.
Applications include climate research, building monitoring, storage facility management, and HVAC testing.
They are also referred to as humidity meters, moisture gauges, or relative humidity testers.
Infrared Thermometers & Cameras
Infrared thermometers and cameras measure surface temperatures by detecting infrared radiation. GAO Tek supplies handheld and advanced imaging models with high-resolution displays and non-contact measurement capabilities.
They are applied in industrial maintenance, electrical inspections, building diagnostics, and process monitoring.
Alternative names include IR thermometers, thermal cameras, and non-contact temperature meters.
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Moisture Analyzers & Meters
Moisture analyzers and meters measure water content in solids, liquids, or gases. GAO Tek’s instruments use gravimetric, capacitive, or infrared drying methods for accurate moisture detection.
Applications include food production, pharmaceuticals, agriculture, and material testing.
They are also called humidity analyzers, moisture detectors, or water content testers.
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Radiation Meters
Radiation meters measure ionizing radiation levels, ensuring workplace safety and compliance with health standards. GAO Tek supplies portable radiation detectors with high sensitivity and real-time monitoring.
They are applied in nuclear facilities, medical radiology, research labs, and environmental monitoring.
Alternative names include Geiger counters, dosimeters, and radiological survey meters.
Refractometers
Refractometers measure the refractive index of liquids or solids to determine concentration or purity. GAO Tek’s refractometers offer digital and handheld models for field and lab use.
Applications include food and beverage production, chemical analysis, and pharmaceutical quality control.
They are also referred to as concentration meters, optical refractometers, or Brix meters.
Sound Level Meters & Calibrators
Sound level meters and calibrators measure acoustic levels in environments, ensuring compliance with noise regulations. GAO Tek’s meters are designed with wide frequency ranges, data logging, and precision microphones.
Applications include workplace safety monitoring, environmental noise surveys, and industrial noise analysis.
They are also known as noise meters, decibel meters, and acoustic testers.
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Temperature & Process Calibrators
Temperature and process calibrators verify the accuracy of sensors, transmitters, and measurement instruments. GAO Tek’s calibrators offer multifunction capabilities, portable designs, and traceable accuracy.
They are used in industrial automation, laboratory calibration, and process control.
Alternative names include calibration instruments, process verifiers, or temperature calibrators.
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Temperature Data Loggers
Temperature data loggers continuously record temperature variations over time for monitoring and analysis. GAO Tek’s loggers provide high storage capacity, wireless connectivity, and durable enclosures.
Applications include cold chain monitoring, laboratory storage, and environmental research.
They are also referred to as thermal loggers, digital temperature recorders, or environmental data recorders.
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Turbidimeters
Turbidimeters measure the cloudiness or haziness of a liquid caused by suspended particles. GAO Tek provides turbidimeters with high-sensitivity optics, digital calibration, and rugged portability.
They are applied in drinking water analysis, wastewater treatment, and environmental research.
Alternative names include turbidity meters, water clarity testers, and nephelometers.
Other Environmental Testers
Other environmental testers encompass devices designed for specialized measurements, such as air particulates, light intensity, or soil properties. GAO Tek offers a range of instruments tailored to unique research and industrial needs.
These testers are used in agriculture, environmental science, industrial safety, and energy sectors.
They are also referred to as environmental meters, specialized testers, or ecosystem analyzers.
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GAO Tek Inc. provides these products and systems with robust R&D, ensuring reliability, scalability, and technical excellence to help industries achieve their goals.
Our products are in stock and can be shipped overnight to the Continental U.S. and Canada from one of our local warehouses. If you have any questions, our technical experts can help you. Please fill out this form or email us.