STS is an escrow service that protects both buyers and suppliers. Funds are held securely by Made-in-China.com until order terms (e.g., delivery, quality) are fulfilled
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| Customization: | Available |
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| After-sales Service: | 7/24 Online Service |
| Warranty: | 1 Year |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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Payment Guarantee
Platform-protected payments with refund support for eligible order issues.
Platform Logistics
Inspection Service
After-Sales & Dispute Handling
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Sampling Method | Natural diffusion |
Detection Principle | Catalytic combustion |
Detection Medium | Methane, propane, isobutane and other combustible gases |
Response Time | ≤30S |
Display Method | LED red digital display |
Status Indication | 3 LED status indicators (Operating, Alarm, Fault) |
Operating Mode | Continuous operation |
Operating Environment | Temperature: -40°C to 70°C, humidity ≤95% RH, atmospheric pressure 86 kPa to 106 kPa |
Operating Voltage | DC 24V +25% |
Output Signal | Simultaneous output of 4 - 20mA current signal and RS485 bus digital signal |
Alarm Output | One active DC24V alarm output, one passive switch or pulse output |
Power | ≤2W |
Explosion-proof mark | Ex d Il C T6 Gb; Ex td A21 IP66 T80°C |
Cable | 1.5mm2 x3 or 1.5mm2 x4 |
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