Target emits IR
Every object above absolute zero emits thermal radiation.
OST Thermopile Sensors
Non-contact temperature data for smarter control
OST products convert infrared energy into a temperature signal. YaoHen supports product selection, application review and design-in coordination for global customers.
1×1 ThermopileDigital Modules4×4 / 8×8 / 16×16 ArraysNDIR Gas Sensing
Product Directory
Single-point sensing, thermal arrays and gas modules
Each product card links to the current product information maintained by OST.
Open official thermopile catalogAnalog / Digital
1×1 Thermopile Sensors
Single-target temperature sensing in TO-can and compact package options.
Official product family
Digital Output
OTI-302 T Series
Temperature output that reduces external conversion work during integration.
Official product pageThermal Array
4×4 / 8×8 / 16×16 Modules
Low-resolution thermal mapping for zones, hotspots and presence detection.
Official product family8×8 Array
OTPA-8-CI25
Digital thermal-array module for compact image and zone processing.
Official product page
Gas Sensing
OGS NDIR Modules
Optical gas-sensing modules combining an IR path, detector and signal processing.
Official product family
Dual Channel
OGS-335 CO₂ Sensor
Dual-channel architecture for measurement and reference compensation.
Official product page
IR Source
OIR-800 Emitter
Broad-spectrum infrared source for gas-sensing optical paths.
Official product pageSelection Support
Application Review
Share target temperature, distance, field of view, output and package constraints.
Discuss with YaoHenOperating Principle
Infrared energy becomes a usable control signal
The thermopile senses radiation from the target while an internal thermistor measures local ambient temperature.
Optics set the FOV
The optical path determines the measured area and distance relationship.
Thermopile responds
The detector converts received thermal energy into a voltage.
Signal is compensated
Ambient temperature and calibration data support object-temperature output.
MCU / ECU acts
Control logic drives a display, alarm, fan or system response.
Closed-Loop Control
Pair sensing with a Forcecon thermal response
A sensor can monitor a battery, processor, motor or surface. The MCU or ECU uses that signal to control fan speed, issue a warning or protect system performance.
OST
Temperature or thermal-array data.
MCU / ECU
Thresholds, fan curve and alerts.
Forcecon
Air, conduction or liquid response.
Feedback
Monitor stability and abnormal events.
Application Fit
Where non-contact sensing adds value
Select the sensor and field of view around the target, distance, response time and temperature range.
Notebook / AI PC
Surface-temperature monitoring can support fan-noise and performance control.
SMDDigital output
Server / GPU
Continuous hotspot monitoring supports warnings and temperature trends.
24/7 monitoringAlerts
Cooking & HVAC
Non-contact food, surface or zone measurement enables automatic control.
Single-pointArray
Charging & Power
Monitor battery and power-equipment temperatures without attaching a probe.
HotspotSafety
Smart Devices
Compact packages can bring temperature functions into portable products.
Low profileDigital
NDIR Gas Sensing
Detector and IR-source combinations support CO₂ and application-specific gases.
OGSOIR
OST Design-In Support
Send the target, distance, temperature range and interface
YaoHen will help organize the key selection questions and coordinate the next technical step.