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;

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
| Gas type | CO2,TVOC |
| Working principle | Infrared sensor for CO2, PID sensor for TVOC |
| Measuring range | CO2: 0~5000ppm, TVOC: 0~10ppm or customized |
| Resolution | 1ppm 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 mode | Pump-suction sampling (Flow rate of 300ml/minute) |
| Data storage | Can record 100000 group of measuring data |
| Response time | T90≤30s (different gas sensors have different response times) |
| Recovery time | ≤20s |
| Pre-heating time | ≤60s |
| Display | LCD 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 humidity | 10%-95%RH(non-condensing) |
| Working pressure | 86Kpa~106Kpa |
| Explosion-Proof grade | Ex ib IIC T4 Gb |
| Protection grade | IP54 |
| Alarm mode | Audible, visual. Two-color LED alarm light, sound≥75dB@25cm |
| Shell material | Aluminum 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 consumption | 0.5W |
| Dimensions | 200.5*64.8*35.5mm (L*W*H) |
| Weight | 0.46KG |
| Accessory | Box, instruction, USB charger , data line |
| Quality standard | GB15322.1-2003,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

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
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