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Pump suction gas detector

OC-905 Handheld Multi Gas Detector with Built-in Pump

This CO2 & TVOC combined gas detector adopts built‑in sampling pump design. It simultaneously detects carbon dioxide and total volatile organic compounds concentration. High‑precision sensors ensure stable and accurate test data. Equipped with LCD display for real‑time data viewing. Audible‑visual alarm will activate once readings exceed preset threshold. Lightweight handheld structure supports mobile on‑site inspection for indoor air quality and industrial environment monitoring.

Description:

This portable CO2 & TVOC composite gas detector is designed for simultaneous real‑time detection of carbon dioxide and total volatile organic compounds. High CO2 concentration may cause dizziness, fatigue and suffocation risk. Excessive TVOC will trigger eye irritation, respiratory discomfort and other health problems. Equipped with high‑precision infrared CO2 sensor and advanced TVOC sensor, the device delivers stable measurement, quick response and strong anti‑interference capability. The LCD screen displays CO2 and TVOC readings at the same time. When either gas exceeds alarm threshold, sound, light and vibration triple alarm will be triggered to remind on‑site personnel of hidden dangers. Adopting lightweight handheld structure, it supports mobile field inspection. Widely used in indoor environment detection, factory workshops, confined spaces, breeding houses, warehouses, new decoration sites and industrial environmental monitoring occasions, helping users evaluate air quality comprehensively and guarantee personnel health and operation safety.

Function:

Inspect the gas concentration and alarm when it reaches preset alarm level.

High accuracy, good stability and good repeatability, long working life.

One-key operation to restore to factory default setting.

Adjustable two-stage audible-visual alarm threshold value.

Powered by rechargeable lithium battery with big capacity.

The built-in pump, stable flow rate, can be opened or closed;

portable gas detector 001 450.jpg

Feature:

  • Multi Gas Detection: Supports combustible gas, oxygen (O2), carbon dioxide (CO2), toxic gases and TVOC

  • Built-in Pump Sampling: Stable flow rate (300ml/min) for fast and accurate detection

  • High Precision Sensors: Imported sensors with intelligent algorithm and temperature compensation

  • Audible & Visual Alarm: Dual alarm system with ≥75dB buzzer and LED light

  • Data Storage & Export: Stores up to 100,000 records, USB data export supported

  • Explosion-Proof Design: Certified Ex ib IIC T4 Gb for hazardous environments

  • Long Battery Life: Rechargeable lithium battery, up to 12 hours operation

Technical Parameter:

Gas typeCO2,TVOC
Working principleInfrared sensor for CO2, PID sensor for TVOC
Measuring rangeCO2: 0~5000ppm, TVOC: 0~10ppm or customized
Resolution1ppm 0.1ppm or customized
Concentration unit%LEL, %Vol, ppb, ppm,mg/m3
Precision±≤3%F.S
Repeatability≤±2%
Zero drift≤±1%(F.S/year)
Sampling modePump-suction sampling (Flow rate of 300ml/minute)
Data storageCan record 100000 group of measuring data
Response timeT90≤30s (different gas sensors have different response times)
Recovery time≤20s
Pre-heating time≤60s
DisplayLCD dot matrix display of the Gas type, gas concentration unit, gas concentration data, time, battery status, data storage status;
Working temperature-20℃~50℃(Special requirements need to be customized)
Working humidity10%-95%RH(non-condensing)
Working pressure86Kpa~106Kpa
Explosion-Proof gradeEx ib IIC T4 Gb
Protection gradeIP54
Alarm modeAudible, visual. Two-color LED alarm light, sound≥75dB@25cm
Shell materialAluminum alloy metal housing, ABS+PC
Power supply

3.7VDC, 2600mAh,Rechargeable lithium battery

DC5V USB charger

Charge time≤6 hours
Working time≥12 hours (Normal temperature electrochemical sensor)
Power consumption0.5W
Dimensions200.5*64.8*35.5mm (L*W*H)
Weight0.46KG
AccessoryBox, instruction, USB charger , data line
Quality standardGB15322.1-2003,GB3836.1-2010,GB3836.2-2010,GB3836.4-2010,GB12358-2006

Application field:

  • Oil & Gas / Petrochemical Industry

  • Chemical Plants & Laboratories

  • Metallurgy & Mining

  • Sewage Treatment & Environmental Monitoring

  • Power Plants & Energy Industry

  • Shipbuilding & Marine Applications

  • Automotive Exhaust Detection

  • Municipal Engineering & Safety Inspection

Our Certificate

64x64


Our After-sales service: 

1. OEM service for LOGO, model, Technical Parameters, Operation manual, etc.

2. Free calibration service and provide calibration methods.

3. One year warranty and lifetime warranty


How To Cooperate With Us?

We look forward to collaborating with more overseas gas detector and air quality monitor distributors and partners  to advance the development and application of gas detection and air quality monitoring technologies.

Our Address

No. 923, Floor 9, Unit 2, NO.78, Shangding Road, Zhengzhou, China.

Phone Number

+86 15981942832

E-Mail

info@china-oceanus.com

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CONTACT US

Contact:Oceanus Team

Mobile/WhatsApp:+86 15981942832

Mobile/WhatsApp:+86 13673683950

E-mail:info@china-oceanus.com

Add:No.923, Floor 9, Unit 2, NO.78, Shangding Road, Zhengzhou, China