Product Model: Minimeta-SO2

MiniMeta is a maintenance-free single gas detector, the most reliable, user-friendly, cost-effective detection solution for worker safety and operational compliance. It offers up to 2 years of protection-with no need for calibration, sensor replacement, battery replacement or battery charging. It’s IECEx, ATEX, CNEX explosion proof certificated and meet the highest standards of quality and reliability to ensure workers’safety and compliance. MiniMeta is small, sturdy, ergonomic, and can be attached to a work coat or cap with alligator clips for easy carrying. MiniMeta can detect toxic and harmful gases like: carbon monoxide, hydrogen sulfide, oxygen and sulfur dioxide, other toxic gases can be customized, which is widely used in petroleum, petrochemical, metallurgy, chemical and other industries for gas detection and personnel protection.

Product Advantage

  • Low power consumption and long standby time, the standby time is up to 2 years, no need to replace the battery
  • Maintenance free: just turn on the device and it will run continuously -no calibration, no sensor replacement, no battery charging
  • Ultra-high buzzer alarm sound, 2 high-bright red LED up and down alarm, sound, light and vibration triple alarm to remind workers
  • High point alarm, low point alarm, TWA, STEL multiple alarm types, the user can adjust the alarm set point as needed throughout the life cycle
  • Automatic logging 10 sets of recent alarm events for easy and accurate record keeping
  • Protection class IP68, splash-proof, dust-proof, explosion-proof, shock-proof, intrinsically safe circuit design
  • Compact and lightweight design with two-button operation without extensive training
  • Affordable, with low cost of ownership
  • Small size, light weight, easy to carry
  • The shell is made of high-strength materials, designed for a variety of harsh environments, comfortable and durable
  • With self-test function, which can improve safety by automatic self-test
  • One press to check the battery and voltage

Industry Application: Oxygen Detection, Toxic Detection

Situation: Furniture, wallpaper, coating, papermaking, pharmacy, health care, disinfection, chemical fertilizer, livestock farm, green household,  agricultural production.


Gas Type SO2
Sampling method Diffusion
Detection range 0-100 ppm
Resolution 0.1ppm
Accuracy ≤±3%FS or ±10% (depending on the specific sensor)
Response time ≤30s(T90)
Principle Electrochemical principle
Display Gas name, concentration unit, measured value, electricity
Alarm mode Sound, light, vibration alarm, high and low alarm values can be set by yourself
Degree of protection IP66/68
Alarm type Low alarm, high alarm, STEL, TWA, low battery
Battery 3.6V dry battery (non–rechargeable)
Dimensions 131x83x35mm
Weight 240g
Approval CE, IECEX, ATEX

Gases and Ranges

Gas Range Other available range Resolution
CO 0-1000ppm 0-500ppm 1ppm
H2S 0-100ppm 0-10ppm, 0-50ppm 0.1ppm
O2 0-30%VOL 0-5%VOL, 0-25%VOL 0.1%VOL
NH3 0-100PPM 0-200ppm 0.1ppm
SO2 0-100PPM 0-20ppm, 0-50ppm 0.1ppm