Low cost HF gas sensor for sale! Detects 0-10 ppm with a 50 ppm max load. Has high sensitivity, 0.1 ppm resolution, and ≤120s response time. Works in various environments and is great for air quality, robotics, and pollution control.
Specification
Model |
ATO-S4-HF |
Detection Principle |
Electrochemical Three-Electrode |
Detected Gas |
Hydrogen Fluoride (HF) |
Detection Range |
0~10 ppm |
Maximum Load Concentration |
50 ppm |
Sensitivity |
-300 ±100 nA/ppm |
Zero Drift |
0~0.1 ppm |
Resolution |
0.1 ppm |
Response Time |
≤120s |
Operating Pressure |
90 to 110 kPa |
Temperature Range |
-30°C to 50°C |
Humidity Range |
15%RH to 90%RH (Non-condensing) |
Repeatability |
< ±2% Signal/Month |
Long-term Stability |
< 2% Signal/Month |
Linearity |
Linear up to 50 ppm |
Service Life |
2 years |
Feature
- High accuracy & long lifespan: Reliable and long-term performance.
- Fast response & quick recovery: The HF gas sensor reacts rapidly to gas changes and resets efficiently.
- Low power consumption & high sensitivity: The hydrogen fluoride gas sensor operates efficiently while maintaining high sensitivity.
- Wide linear range: Supports multiple concentration ranges with stable performance.
- Strong anti-interference: The gas sensor remains accurate even in complex environments.
- Excellent repeatability & stability: Offers consistent and precise measurements over time.
Dimension (Unit: mm)
Crossover Interference
The hydrogen fluoride (HF) gas sensor also responds to gases other than the target gas. For reference, the response characteristics of the sensor to several common interfering gases are listed in the table below. The data in the table are typical responses of interfering gases at a given concentration.
Interfering Gas |
Gas Concentration Used (ppm) |
Displayed Value (ppm/HF) |
CO |
500 |
0 |
HCl |
10 |
50 |
NO |
50 |
29 |
NO₂ |
20 |
180 |
Basic Test Circuit

Application
This Hydrogen fluoride (HF) gas sensor is used in indoor environmental air quality monitoring, industrial robotics, urban environmental pollution, instrumentation, automotive manufacturing industry, agriculture, forestry and livestock production environment monitoring.
Tips: What is the electrochemical principle of a hydrogen fluoride gas sensor?
Hydrogen fluoride and oxygen in the working electrode and counter electrode respectively, the corresponding redox reaction occurs to produce an induction current, the induction current is proportional to the concentration, so as to determine the concentration of the gas to be measured.
