Product Selection | Sensing Safeguards for Security — GXCAS Unveils Smart Surveillance Sensing Chip Solutions
时间：2026-10-23
Security terminals are commonly deployed in harsh environments such as open-air factories, buildings and industrial sites. Interferences including drastic day-night temperature swings, high humidity, condensation and temperature drift will degrade imaging quality, detection accuracy and long-term device reliability. Accurate temperature & humidity sensing serves as the fundamental foundation for optical imaging, fire detection and infrared temperature measurement. Relying on its self-developed sensor product portfolio, GXCAS provides practical sensor chip solutions for typical security scenarios, supports domestic alternative sourcing and helps customers streamline hardware development.
Typical Application Scenarios
Recommended Parts: GXHT40, GX75C
Solution: The temperature & humidity sensor monitors the internal cavity of the camera lens to eliminate fogging and condensation on outdoor lenses. The temperature sensor tracks the main board and image sensor for over-temperature protection, compatible with various IPC hardware designs.
Recommended Parts: GXHT40, GXHTC3
Solution: The temperature & humidity sensor compensates smoke detection signals against humidity to reduce false alarms caused by moisture. A built-in heater removes condensation inside the detector.
Recommended Parts: GX36, GX75C, GXHT40
Solution: GXCAS temperature sensors deliver reference temperature sampling for industrial infrared thermal imaging, enabling automatic temperature drift compensation for detectors to guarantee thermal measurement accuracy and consistent imaging performance.
Recommended Parts: GXT311, GXT310
Solution: Mounted on thermal imaging cores, GXT311 performs high-precision 16-bit digital temperature measurement to calibrate temperature drift for radiometric temperature algorithms and protect core chips from overheating, improving overall measurement accuracy and operational stability.
Product Selection Guide
GXCAS temperature sensors feature high integration, excellent accuracy and linearity, covering both digital and analog product lines. Digital temperature ICs support multiple interfaces including 1-Wire, I2C/SMBus, SPI, UART and single-wire pulse. The measurement range spans -80℃ ~ +200℃ with accuracy from 0.1℃ to 1℃ and resolution ranging from 9bit to 16bit. They are widely used in security IPCs, fire alarms and infrared thermal imaging cores for over-temperature protection, detector drift compensation and temperature-rise fire monitoring. Backed by in-house technology, standardized quality control and on-site FAE support, these sensors meet localization demands for security and fire protection equipment.
GXCAS’s new generation temperature & humidity sensors adopt CMOS+MEMS technology, integrating temperature and humidity acquisition on a single die. The monolithic integration is implemented on silicon CMOS wafers, achieving temperature accuracy of ±0.2℃. Equipped with high-sensitivity MEMS humidity sensing elements, the humidity accuracy reaches ±1.8% RH with a maximum conversion speed of 1.3ms at 16-bit resolution. These sensors deliver outstanding consistency, reliability and anti-interference capability. They are suitable for anti-condensation on security IPC lenses and humidity compensation for smoke detectors, lowering false alarms in humid environments and satisfying high-reliability environmental sensing requirements for security and fire devices.
From video capture and fire early warning to precise infrared temperature calibration, accurate sensing is critical for stable operation of security terminals. GXCAS keeps focusing on environmental sensing chip R&D, providing pin-to-pin domestic replacement solutions to help terminal manufacturers shorten development cycles and optimize BOM cost.
For datasheets, sample requests and solution discussion, please contact GXCAS sales team.
