Features:
◆ independent precision AD chip, 4-layer circuit board design, the weak signal and anti-interference ability stronger;
◆ 2.5-inch dot matrix display interface, large font interface reading beautiful, scientific and rational menu design;
◆ imported high-performance sensor, high precision, repeatability, long service life;
◆ built-in high-performance suction pump, flow rate stability, switch control;
◆ A strong 4000 alarm records data storage function;
◆ %VOL, %LEL, ppm, mg/m3 can choose a variety of units;
◆ embedded 32-bit ultra-low power processor, coupled with a unique signal processing algorithms, fast response and stability;
◆ scientific and reasonable sound and light alarm design, curve symmetry, detection of excessive warning prompts in time to protect personal safety.
◆ Can be applied to a variety of dangerous industrial places; products are widely used in metallurgy, oil Petrochemical, municipal, chemical, bio-pharmaceutical, home environmental protection, school laboratories, automobile exhaust and other fields.

Technical indicators:
Detection of gas: Ozone O3
Principle of detection: Principles of electrochemistry
Detection method: pumped / diffused
Resolution: 0.1 ppm
Measuring range:100 ppm
Accuracy: ± 3% FS
Repeatability: 3% or less
Response time: ≤60 seconds
Alarm mode: Buzzer sound alarm/body vibration alarm/light flashing alarm
Mode of operation: key operation (key life of up to 200,000 times)
Main material: ABS shell, durable wear-resistant corrosion, feel good
Operating temperature: - 20 ℃ ~ +50 ℃
Operating humidity: 10% RH ~ 95% RH, no condensation
Working pressure:-30kPa ~ 200kPa
Battery: 3000mAh
Charger: USB power supply DC5V
Continuous working time: ≥ 12 hours (at room temperature)
Protection class: IP66
Size: 130 × 63 × 36mm (L × W × H)
Weight: about 0.5Kg

Standard configuration:
1*Gas detector
1*USB charger
1*charging cable
1*instruction manual