All Products TH Sensor

SI7021-A20-GM1R / The SI7021-A20-GM1R is a high-accuracy digital humidity and temperature sensor integrating a calibrated sensing element and signal processing circuitry in a compact DFN-6 package. It operates over a supply voltage range of 1.9V to 3.6V and communicates via a standard I2C interface with low power consumption typically around 150 µA during measurement and less than 60 nA in standby mode. The device provides relative humidity measurement range from 0% to 100% RH with accuracy of ±2% RH, and temperature measurement range from -10°C to +85°C with accuracy of ±0.4°C. It features fast response time, factory calibration, and long-term stability with drift less than 0.25% RH per year. The sensor includes an integrated heater for condensation removal and offers 14-bit resolution for humidity and 12–14-bit for temperature. Operating temperature range is -40°C to +125°C, making it suitable for HVAC, industrial monitoring, IoT devices, and environmental sensing applications.
SI7021-A20-GM1R

Description: The SI7021-A20-GM1R is a high-accuracy digital humidity and temperature sensor integrating ...
Package: T&R | MOQ: 2500 | MPQ: 2500

DHT11 / The DHT11 is a low-cost digital temperature and humidity sensor that integrates a calibrated humidity sensing element and an NTC temperature sensor with a built-in 8-bit microcontroller. It operates with a supply voltage of 3.3 V to 5 V and communicates through a single-wire digital interface. The sensor provides humidity measurements in the range of 20% to 80% RH with ±5% accuracy and temperature measurements from 0°C to 50°C with ±2°C accuracy. It has a sampling rate of about 1 Hz and delivers digital output data with no need for additional signal conditioning. The DHT11 is commonly used in HVAC systems, weather stations, home automation, and embedded projects requiring basic environmental sensing.
DHT11

Description: The DHT11 is a low-cost digital temperature and humidity sensor that integrates a calibrat ...
Package: TRAY | MOQ: 500 | MPQ: 50

AM2302 / The AM2302, also known as DHT22, is a high-precision digital temperature and humidity sensor that integrates a capacitive humidity sensor and a thermistor with a built-in microcontroller. It operates with a supply voltage range of 3.3 V to 6 V and communicates via a single-wire digital interface. The sensor provides humidity measurements from 0% to 100% RH with ±2–5% accuracy and temperature measurements from -40°C to +80°C with ±0.5°C accuracy. It features a typical sampling rate of 0.5 Hz (one reading every 2 seconds) and delivers calibrated digital output, eliminating the need for additional signal conditioning. The AM2302 is widely used in weather stations, HVAC systems, environmental monitoring, industrial control, and embedded systems requiring higher accuracy than basic sensors like the DHT11.
AM2302

Description: The AM2302, also known as DHT22, is a high-precision digital temperature and humidity sens ...
Package: TRAY | MOQ: 500 | MPQ: 50

BME280 / The BME280 is a highly integrated environmental sensor that measures barometric pressure, temperature, and humidity in a single compact device. It operates with a supply voltage range of 1.71 V to 3.6 V and supports both I²C and SPI communication interfaces. The sensor provides pressure measurement from 300 hPa to 1100 hPa, temperature measurement with ±1°C accuracy, and humidity measurement with ±3% RH typical accuracy. It features low power consumption (as low as 1.8 µA in sleep mode) and includes built-in calibration and digital filtering for accurate and stable readings. The BME280 is widely used in weather stations, smart home devices, IoT systems, indoor navigation, and portable electronics requiring environmental monitoring.
BME280

Description: The BME280 is a highly integrated environmental sensor that measures barometric pressure, ...
Package: T&R | MOQ: 1000 | MPQ: 1000













info@signalhk.com

+852 2417 2366

Room 1304, 13/F, Allways Centre, 468 Jaffe Road, Causeway Bay, Hong Kong.


SIGNAL-HK WIKI BLOG

Copyright © 2008-2024 Signal HK Limited. All Rights Reserved.Designated trademarks and brands are the property of their respective owners.
Use of this Website constitutes acceptance of Signal HK Limited Terms of Use and Privacy Policy

Cookie Policy | MSN EQV Parts |