Sensirion SHT85 Humidity & Temperature Sensor, ±1.5%RH, −40°C to +105°C, I2C Interface

Name: Sensirion SHT85 Humidity &amp; Temperature Sensor, ±1.5%RH, −40°C to +105°C, I2C Interface
Brand: Sensirion
SKU: SENS-3409
Price: 2829.00 INR
Availability: OutOfStock

₹2,829.00 (Inclusive of all taxes)

Out of Stock

The Sensirion SHT85 is a high-precision digital humidity and temperature sensor with an I2C interface, designed for demanding applications from industrial monitoring to HVAC systems. It operates from 2.15V to 5.5V, making it compatible with 3.3V and 5V logic systems including Arduino, Raspberry Pi, and industrial PLCs.

Features

High-Accuracy Sensing: Delivers ±1.5% RH humidity accuracy and ±0.1°C temperature precision over a wide operating range.
Robust I2C Interface: Digital output ensures reliable communication and easy integration with microcontrollers and data acquisition systems.
Extended Environmental Range: Operates from -40°C to +105°C, suitable for harsh industrial and outdoor environments.
Low Power Consumption: Optimized for energy-efficient designs and battery-powered portable devices.
Excellent Long-Term Stability: Engineered for minimal drift, ensuring consistent measurement reliability over time.

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Description

The SHT85 utilizes Sensirion’s proven CMOSens® technology, which integrates a capacitive polymer humidity sensor and a band-gap temperature sensor on a single CMOS chip. This advanced MEMS-based design provides fully calibrated, linearized digital signals via the I2C interface, eliminating the need for external signal conditioning.

Housed in a robust DFN-type package that is reflow solderable, the sensor is built for durability and reliable performance in challenging conditions. Its wide supply voltage range and low power draw make it an ideal choice for integration into HVAC control units, weather stations, data loggers, and industrial process monitoring systems.

Key Features

High-Precision Dual Measurement: Simultaneously outputs calibrated relative humidity (0-100% RH) and temperature (-40°C to +105°C) data.
Digital I2C Interface: Provides a clean, noise-immune digital signal with two user-selectable addresses for system flexibility.
Wide Operating Voltage: Supports 2.15V to 5.5V DC, ensuring compatibility with both 3.3V and 5V logic families.
Optimized for Automated Assembly: DFN (Dual Flat No-lead) package is designed for reflow soldering processes.
Superior Environmental Robustness: Features excellent resistance to contaminants and long-term stability for reliable field deployment.
Low Power Profile: Consumes minimal current, making it suitable for portable, battery-operated monitoring devices.

Applications

HVAC and Building Automation: Precise climate control and indoor air quality monitoring.
Industrial Process Monitoring: Environmental condition tracking in manufacturing, cleanrooms, and storage facilities.
Weather Stations and Data Loggers: High-reliability outdoor and agricultural environmental sensing.
Portable Test & Measurement Equipment: Integration into handheld devices for field service and diagnostics.
Automotive and Transportation: Cabin climate monitoring and system diagnostics.

Technical Specifications

Manufacturer Part Number	SHT85
Measurement Range (Humidity)	0 to 100 %RH
Measurement Range (Temperature)	-40°C to +105°C
Humidity Accuracy	±1.5 %RH
Temperature Accuracy	±0.1 °C (typical)
Supply Voltage	2.15 V to 5.5 V DC
Interface	I2C (Digital)
Output Type	Digital
Package Type	DFN (SIP-4 footprint)
Operating Temperature	-40°C to +105°C

Frequently Asked Questions

What is the operating voltage range for the SHT85 sensor?

The SHT85 operates from a wide supply voltage range of 2.15V to 5.5V DC. This makes it directly compatible with both 3.3V and 5V microcontroller systems like Arduino, Raspberry Pi, ESP32, and industrial PLCs without requiring a level shifter.

How do I communicate with the SHT85 using the I2C interface?

The SHT85 uses a standard I2C communication protocol. You will need to connect the SDA (data) and SCL (clock) lines to your microcontroller, along with power and ground. The sensor has a default I2C address, and commands for initiating measurements and reading data are detailed in the official Sensirion datasheet.

Is the SHT85 sensor calibrated, and what is its accuracy?

Yes, the SHT85 is fully factory calibrated. It provides a humidity accuracy of ±1.5% RH and a typical temperature accuracy of ±0.1°C over its specified range. The digital output delivers linearized, compensated values, so no user calibration is required for most applications.

Can the SHT85 be used in outdoor or harsh industrial environments?

Absolutely. With an operating temperature range of -40°C to +105°C and a robust DFN package designed for durability, the SHT85 is well-suited for harsh environments. Its excellent long-term stability and resistance to contaminants make it ideal for outdoor weather stations, industrial monitoring, and HVAC systems.