Agriculture›
Apparel and fashion accessories›
Construction & real estate›💡Electronic & Electrical›🍎Food & Beverages›🛋️Home furnishing & supplies›⚗️Industrial goods & chemical›🪨Minerals & metals›📦Miscellaneous›
Agriculture›
Apparel and fashion accessories›
Construction & real estate›💡Electronic & Electrical›🍎Food & Beverages›🛋️Home furnishing & supplies›⚗️Industrial goods & chemical›🪨Minerals & metals›📦Miscellaneous›

The Gastec CO2 gas detector tube NO.2HH is a single‑use glass tube designed for on‑site measurement of carbon dioxide concentrations. It covers a measuring range of 2.5‑40 % CO2 by volume, suitable for many industrial ventilation and safety applications. Each tube is sealed at both ends and carries a calibrated colour‑change scale that can be read directly after exposure. The manufacturer states a shelf life of three years from the date of production.
Inside the tube a particulate matrix of silica gel and alumina holds a CO2‑sensitive reagent that produces a distinct colour band when the target gas is present. This construction follows the standard design of Gastec short‑term detector tubes, which are widely used for rapid, qualitative assessments in the field. Typical tube dimensions are about 150 mm in length and 12 mm in diameter, with an adjustable sampling volume of roughly 0.5 L.
The tubes are favoured by plant safety officers, HVAC technicians and environmental monitoring firms that need quick verification of CO2 levels without laboratory equipment. Henan Greeenland Tech Industrial Co. Ltd keeps a stock of this model and can dispatch orders within three working days, subject to confirmation of quantity. Buyers should confirm the exact lot number and quality‑control code printed on each tube to ensure traceability. Payment terms and incoterms are negotiated directly with the supplier, who notes a response window of 24 hours on working days.
| Measuring Range | 2.5‑40 % CO2 (vol.) |
| Shelf Life | 3 years from date of production |
| Tube Material | Thin glass, hermetically sealed at both ends |
| Reagent Matrix | Silica gel and alumina particles with CO2‑sensitive detection chemicals |
| Calibration Scale | Direct reading printed on tube |
| Quality Control Number | Unique identifier per tube |
| Typical Tube Length | typical 150 mm |
| Typical Tube Diameter | typical 12 mm |
| Typical Sampling Volume | typical 0.5 L adjustable |
| Standard Accuracy | typical ±5 % of reading |
Henan Greeenland Tech Industrial Co. Ltd is located on the 28th floor of Building No. 6, No. 1 Suoling Road in Zhengzhou, Henan Province, China (postal code 450046). The company is listed with a harbour‑level trust tier on the marketplace, indicating basic verification of its business registration. Their profile shows a response rate of 0 % and an average response time of 0 hours, which suggests that they have not yet recorded any reply statistics.
The supplier highlights twenty years of exporting experience and holds ISO, SGS and SEI certifications for its production processes. They claim pricing at least five per cent lower than competing Chinese manufacturers and a shipment speed ten per cent faster than peers, with some items ready to dispatch within three working days. Technical support is offered to tailor solutions to customer specifications, and inquiries are said to be answered within twenty‑four hours on working days.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | <4h |
| Response Rate | New Supplier |
Before placing an order for the Gastec CO2 tube, importers should request the current ISO, SGS or SEI certification copies that the supplier claims to hold, and confirm the production date printed on each tube to guarantee it falls within the three‑year shelf life. Verifying the unique quality‑control number on the glass helps trace the batch to the manufacturing lot and reduces the risk of receiving expired or counterfeit units.
Logistics arrangements are negotiated directly with Henan Greeenland Tech Industrial Co. Ltd. Buyers need to agree on the incoterm - typically FOB Zhengzhou or CIF Shanghai - and confirm the expected lead time, which the supplier notes as three working days for stocked items. Payment terms are usually a bank transfer against a pro‑forma invoice, but the exact schedule should be settled before shipment.
Upon arrival, purchasers should inspect the tubes for intact seals, clear calibration markings and the printed quality‑control identifier. A random sample can be sent to an accredited laboratory for colour‑change verification against a known CO2 concentration to ensure the reagents remain active. Retaining the supplier’s test certificates and the batch documentation will streamline customs clearance and downstream quality audits.
Compare alternatives, find similar products and connect with verified suppliers
When sourcing Gastec Co2 Gas Detector Tube No.2hh for your business, securing the right balance of quality and cost is essential. Henan Greeenland Tech Industrial Co. Ltd, a verified supplier based in China, offers this product for international export. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $40/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is a staple in the Industrial Tubes sector with strong demand from importing countries worldwide.
Importing Gastec Co2 Gas Detector T requires careful attention to shipping logistics, customs compliance, and secure payment terms. Henan Greeenland Tech Industrial Co. Ltd offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading online B2B marketplace designed to make cross-border trade secure and efficient.
Finding trustworthy partners is the foundation of successful importing. The supplier of this Gastec Co2 Gas Detector T has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Industrial Tubes category and connect with top-tier exporters on our comprehensive B2B marketplace. Start your sourcing journey today.
Importing Gastec Co2 Gas Detector T requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
The current listed wholesale price for Gastec Co2 Gas Detector Tube No.2hh from Henan Greeenland Tech Industrial Co. Ltd is $40/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Henan Greeenland Tech Industrial Co. Ltd through EximNext.
The supplier, Henan Greeenland Tech Industrial Co. Ltd, has set a Minimum Order Quantity (MOQ) of 1 Bags for Gastec Co2 Gas Detector T. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
The HS Code classification for Gastec Co2 Gas Detector Tube No.2hh depends on the specific grade and form. Contact Henan Greeenland Tech Industrial Co. Ltd through EximNext for the exact HS Code and customs documentation required for your destination country.
To import Gastec Co2 Gas Detector T from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Henan Greeenland Tech Industrial Co. Ltd. Ensure you have the necessary import licenses for Industrial Tubes products in your destination country.
Yes, Henan Greeenland Tech Industrial Co. Ltd is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to Henan Greeenland Tech Industrial Co. Ltd through EximNext.
Henan Greeenland Tech Industrial Co. Ltd offers Gastec Co2 Gas Detector T with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Gastec Co2 Gas Detector T is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Henan Greeenland Tech Industrial Co. Ltd through our platform.
Henan Greeenland Tech Industrial Co. Ltd maintains international quality certifications. These ensure that the Gastec Co2 Gas Detector T meets international quality, safety, and regulatory standards required for cross-border trade.
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Henan Greeenland Tech Industrial Co. Ltd will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Henan Greeenland Tech Industrial Co. Ltd.
Discover more products in Industrial Tubes from verified suppliers worldwide.