Portable gas detector SY-QTBX21


SY-QT-BX21 Intelligent portable gas detector is a multi-functional gas detector, it can work up to 24 hours after it is full charged. It has high measuring accuracy. The instrument can be equipped with a data storage of 2 GB. Simple operation, widely be used in emergency detection, medicine, metallurgy, fire protection, petrochemical, municipal, coatings, paints, chemicals, and other fields.


Email: sales@hginstrument.com

Technical data

Measured gas:hazardous gas, flammable gas, Oxygen, VOC

Gas sampling method: diffusion

Measuring principle:  Electrochemistry, catalytic combustion, NDIR, Photoionization measuring

Accuracy:≤±3% ,  Repeatability:≤±1%,  Zero drift:  ≤±1% FS

Response time: depends on measuring principle.

Electrochemistry ≤60S,  catalytic combustion ≤10S,  Photoionization measuring≤5S


Alarm type:sound and light alarm / vibration alarm

Data storage: 2GB (optional) , can save 5 years if storage interval is 5 seconds.

With USB2.0 data interface, support data reading

Housing material: Industrial grade ABS + PC, Display: LCD screen, 2”

Power supply: 3.7V 2000mA lithium batteryPower Dissipation: ≤0.5W

Weather protection: IP65

Operation temperature:-20 to 60℃

Humidity:≤90%RH, without condensation ( if humidity > 90%RH, can equip with filter)

Product size and weight:  117 * 64 * 41 mm,  150 g