LM35 Precision Centigrade Temperature Sensor – Analog Temperature Sensor for Arduino, ESP32, Raspberry Pi & Embedded Systems

The LM35 Precision Centigrade Temperature Sensor is a highly accurate analog temperature sensor that provides linear voltage output proportional to the ambient temperature in degrees Celsius. Unlike thermistors, the LM35 does not require external calibration and delivers a precise temperature reading with a sensitivity of 10mV per °C.

This sensor operates from +4V to +30V and consumes minimal current, making it an ideal choice for battery-operated systems, data loggers, IoT devices, environmental monitoring systems, and embedded temperature sensing applications. Its simplicity, accuracy, and ease of interfacing with Arduino, ESP32, Raspberry Pi, and other microcontrollers make it a preferred component in both educational and professional electronics projects.

Key Features:

• Operating Voltage: +4V to +30V DC

• Temperature Range: 0°C to +100°C (Extended range up to +150°C)

• Output Voltage: Linear 10mV/°C Scale Factor

• Accuracy: ±0.5°C (at 25°C)

• Low Self-Heating: Less than 0.1°C rise in still air

• Low Power Consumption: Ideal for battery-powered applications

• Analog Output: Direct voltage output proportional to temperature

• Simple 3-Pin Interface: VCC, GND, and Analog Output (Vout)

• Compatible With: Arduino, ESP32, Raspberry Pi, and other MCU platforms

Applications:

• Temperature Monitoring and Control Systems

• Weather Stations & Environmental Sensing

• IoT-Based Temperature Data Logging

• HVAC Systems and Industrial Automation

• DIY Home Automation Projects

• Embedded Systems & Educational Prototyping

Package Includes:

• 1 x LM35 Precision Centigrade Temperature Sensor (TO-92 Package)

Why Choose the LM35 Temperature Sensor?

• High accuracy with no need for external calibration.

• Linear analog output for easy interfacing with microcontrollers.

• Low power consumption suitable for battery-operated IoT devices.

• Simple 3-pin setup makes it beginner-friendly for DIY projects.

• Widely used in educational, hobby, and industrial applications.