Is there a discount for bulk orders?

Yes, discounts are available for orders with more than 50 pcs.

What are the power supply requirements?

It adopts a wide voltage 10-30V DC power supply.

Tvoc.

Name: Sentecsem328 Digital Wall-Mounted Ex Muti-Gas Sensor with Alarm CH4/H2s/No2/So2/Tvoc.
Brand: Chengdu Sentec Technology Co., Ltd.
SKU: 2273535915

Sichuan, ChinaChengdu Sentec Technology Co., Ltd.

US$88.00

1 Piece

Product profile

Customization

Available

Type

Ex Gas Sensor

Conductivity Type

Lithium Battery/24VDC

Model NO.

SEM328

Output Signal Type

DC3.7V

Production Process

Integration

Material

ABS

IP Rating

IP65

Sensitivity

High

Certification

CE,Rosh,ATEX

Customized

Product Name

Compound Multi-Gas Detector

Power Consumption

RS485 Type: 0.35W, Analog Type: 1.0W

Relay with Load Capacity

250VAC 1A/30VDC 1A

Working Environment

Temperature -20℃-50℃; Humidity <95%Rh Without Cond

Signal Output

RS485, 4~20mA, 0-10V, 0-5V

Ex

Ex D Iic T6 GB

Transport Package

Carton

Specification

18*15*13 1Kg

Trademark

SENTEC

Origin

China

HS Code

9027100090

Production Capacity

50000

Key features

Multi-Gas Detection: Detects CH4, H2S, NO2, SO2, TVOC, CO, O2, etc., with customizable ranges.

High Precision Sensors: Uses imported electrochemical sensors for rapid response and high stability.

Wide Voltage Supply: Supports 10-30V DC power supply for flexible installation.

Long Communication: Modbus-RTU RS485 output with communication distance up to 2000 meters.

Customizable Options: Product name, gas ranges, and logo can be customized.

Certified Quality: CE, RoHS, and ATEX certified for safety and compliance.

Optional LCD Display: Optional high-quality LCD screen for clear night-time value viewing.

Company profile

High Repeat Buyers ChoiceIn-stock CapacityCustomization from SamplesProduct Certification

Chengdu Sentec Technology Co., Ltd.

Sichuan, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2011-03-01Average Response Time: ≤9.57hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, CPT, Others, FCA

AI-Powered supplier vetting

SummaryChengdu Sentec Technology Co., Ltd. is a China-based limited company identified as both a trading company and manufacturer/factory in the electrical and electronics sector. Its stated products include multiple sensor and transmitter categories, while company descriptions highlight sensor technology development, intelligent monitoring solutions, and OEM experience. The supplier reports ISO 9001 certification, 11–20 years of R&D engineer experience, 6–10 quality-control staff, and more than 10 production lines. It has exported since 2011 and reports that 51%–70% of sales are exports, with self-operated import and export rights. An audit by BV is recorded, but the supplied audit result is “0” and the report validity period ended on 2024-11-15; the meaning of the result is not provided. Evidence remains insufficient for financial credibility, after-sales capability, overseas service coverage, detailed customization services, and verified customer cases.

Supplier typeThe supplier is explicitly classified as both a Trading Company and Manufacturer/Factory, with a limited-company structure and electrical and electronics trade focus. This supports its ability to operate as a product supplier with manufacturing involvement, although the relative scale of trading versus manufacturing is not stated.

CertificationsThe supplier reports ISO 9001 certification, and a BV audit record is provided with a stated validity period from 2023-11-16 to 2024-11-15. However, the audit result is recorded as “0,” and no interpretation or currently valid certification evidence is supplied, so the positive certification evidence is limited to the stated ISO 9001 holding.

R&D capabilityCompany descriptions state that industry experts participate in sensor R&D and innovation, that advanced production technologies are continuously introduced and developed, and that the supplier has 11–20 years of R&D engineer experience. Specific evidence for new-product output, SDK availability, 3D design, ODM, or other measured innovation deliverables is unknown.

Production capacityThe supplier is identified as a manufacturer/factory, offers several sensor and transmitter product categories, reports more than 10 production lines, and describes industrialized and systematized production. These details provide explicit evidence of substantial production infrastructure, although capacity volume and utilization are not stated.

Customization capabilityThe supplier explicitly states it has experienced OEM services and develops sensing technology solutions for customers, which supports some customization capability. Nevertheless, the availability of ODM, OEM for popular brands, 3D software design, and new-product development services is marked unknown, so the full customization scope cannot be verified.