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SHT85

SHT85

Sensirion
Board Mount Humidity Sensors RH/ T Sensor
3,193 in stock

Overview

The SHT85 is a high-accuracy, digital humidity and temperature sensor housed in a 4-pin SIP module for easy through-hole assembly. It features a PTFE membrane that provides IP67-rated protection against water and dust while maintaining a fast 8-second response time. The sensor utilizes Sensirion CMOSens technology to deliver fully calibrated, linearized, and temperature-compensated 16-bit digital outputs over an I2C interface.

Why Choose This Part

The SHT85 offers a superior typical accuracy of +/-1.5% RH and includes an integrated 100nF decoupling capacitor and a PTFE filter for immediate industrial use. Its through-hole package allows for easy replacement and maintenance compared to surface-mount alternatives, while the internal heater allows for advanced plausibility checking and recovery from condensing conditions.

Applications

HVAC System Monitoring
Precise humidity and temperature control in building automation systems requiring high reliability.
Industrial Data Loggers
Environmental monitoring in warehouses and cold-chain logistics where IP67 protection is necessary.
Medical Equipment
Used in respiratory devices and incubators where stable, high-accuracy sensing is critical.
Weather Stations
Outdoor sensing applications that benefit from the integrated membrane and wide -40 to 105 degrees Celsius operating range.

Key Specifications

Output 16b
Accuracy +/-1.5% RH
Output Type Digital
Sensor Type Humidity, Temperature
Mounting Type Through Hole
Response Time 8 s
Humidity Range 0 ~ 100% RH
Package / Case 4-SIP Module
Voltage - Supply 2.15V ~ 5.5V
Operating Temperature -40degC ~ 105degC
Supplier Device Package 4-SIP

Getting Started

Connect the SHT85 to any I2C-capable microcontroller like an ESP32 or STM32 using its 2.15V to 5.5V supply range. Use the official Sensirion Arduino SHT Sensor library to quickly read data and implement CRC-8 checksum verification for robust communication. Ensure the sensor is mounted away from heat sources on the PCB to maintain measurement accuracy.

Also Consider

SHT35 Sensirion - An alternative surface-mount (DFN) sensor that offers similar high accuracy for high-volume automated assembly.
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