In fields such as industrial inspection, environmental monitoring, and medical equipment, precise gas concentration measurement has long been a key focus of technological breakthroughs. Recently, Shenzhen Runpu Technology Co., Ltd. introduced the GSTB-400H LIN version of its extreme current oxygen sensor module, which delivers outstanding performance and flexible application design, offering the industry a groundbreaking technical solution.

The oxygen detection range spans 0.1% to 40% (with customizable extension), featuring a resolution of 0.01% and an accuracy of ±1%FS (operating in-40℃ to 85℃ environments).
An integrated environmental compensation sensor combining temperature (±0.3℃), humidity (±3% RH), and pressure (±3Pa) ensures reliable data acquisition even under complex operating conditions.
Response time under 5 seconds. A 60-second warm-up is required before starting work.
With a service life of up to 5 years, it operates continuously across a wide temperature range from-40°C to 85°C.
Dual interface with UART(3.3V and LIN (12V)
Compatible with both LIN 2.1 and custom UART protocols, supporting various industrial bus types.
Industrial Safety: Monitoring of Boiler Combustion Efficiency and Oxygen Content Warning in Enclosed Space
Healthcare: Calibrating oxygen concentration in ventilators, neonatal care equipment
Environmental Monitoring: Analysis of Atmospheric Composition and Laboratory Gas Quality Control
New Energy: Oxygen Sensor for Fuel Cell and Production Environment Monitoring of Lithium Battery
The module supports one-click calibration, which completes concentration adjustment by sending specific command sequences. Measurement data includes multiple parameters such as oxygen concentration, temperature and humidity, and air pressure, and is directly output through a hexadecimal protocol. Users can quickly parse the data using the following example:
Response data: 16 09 01 08 2A 01 09 01 C7 03 E8 F1
→ Oxygen concentration 20.90% / ambient temperature 26.5℃ / humidity 45.5%RH / air pressure 1000hPa
Compact package (58.27×42.11×18.5mm) for embedded installation
12V DC power supply, normal power consumption 1.6-3.6W, meet the energy efficiency standard
Supports four types of interface definitions (power, UART, LIN, and environmental sensors) for peripheral expansion
Expert opinion
"This module integrates current sensing technology with multi-environment parameter compensation, effectively addressing the temperature and humidity drift issues common in traditional oxygen sensors," explained the technical director of an industrial detection equipment manufacturer. "Its LIN bus compatibility makes it particularly suitable for automotive electronics and industrial automation applications."