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Sonoff Si7021 Temperature and Humidity Sensor Jack with 0.5m Cable
Temperature & Humidity Sensors

Sonoff Si7021 Temperature and Humidity Sensor Jack with 0.5m Cable

Key features:

  • Temperature accuracy: ±0.5°C
  • Output cable: Jack
  • Cable length: 50 cm
  • Weight: 26g
See full description

  • Connection Method

    Wired

    Ability for wired transfer of measurement data and communication with other devices.

  • Connectivity

    The wireless communication protocol supported by the sensor for connecting to a device and transferring data.

  • With Cable

    For wired data transfer or power supply in cases where the cable also includes a corresponding plug (e.g. USB)

  • Plug

    The sensor's plug for wired connection with other devices or meters.

  • Temperature Range

    The minimum and maximum temperature range of the sensor.
  • See all
Product report

Description

Description

Smart temperature and humidity sensor, for use with Sonoff TH10/TH16.

The Sonoff SI7021 sensor is designed for use with TH10/TH16 smart switches and S22 sockets, providing accurate temperature and humidity measurements. The temperature is measured from -40°C to +85°C with a resolution of 0.1°C and an accuracy of ±0.5°C, while humidity ranges from 0% to 99.9% RH with a resolution of 0.1% RH and an accuracy of ±3% RH (at 25°C). The sensor offers fast response and high interference resistance, ensuring reliable environmental monitoring.

Jack type output cable

The sensor features a 50 cm long Jack-type output cable, facilitating easy connection to compatible Sonoff devices. Its small size and lightweight of 26 g allow for easy placement anywhere.

Features

  • Temperature measurement range: -40°C to +85°C
  • Temperature resolution: 0.1°C
  • Temperature accuracy: ±0.5°C
  • Humidity measurement range: 0% to 99.9% RH
  • Humidity resolution: 0.1% RH
  • Humidity accuracy: ±3% RH (at 25°C)
  • Power supply: 2.2 to 3.6 V
  • Output cable: Jack
  • Cable length: 50 cm
  • Weight: 26 g


Manufacturer

Manufacturer Details

Warnings & Safety Information
See full description

Specifications

Specifications

Specifications

Type
Temperature, Humidity
Air Quality
No

Air Quality

Includes sensors that, in addition to temperature and humidity, also monitor air quality.
Connection Method
Wired

Connection Method

Wired

Ability for wired transfer of measurement data and communication with other devices.
Cable Type
Yes

Cable Type

For wired data transfer or power supply in cases where the cable also includes a corresponding plug (e.g. USB)
Cable Length
0.5 m
Battery
No

Additional Features

Plug
Jack

Plug

The sensor's plug for wired connection with other devices or meters.
Temperature Range
-40°C to 85°C

Temperature Range

The minimum and maximum temperature range of the sensor.

Smart Attributes

Connectivity
Wi-Fi

Connectivity

The wireless communication protocol supported by the sensor for connecting to a device and transferring data.

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

See all specifications

Reviews (16)

Reviews

4.5
16
4.5
Review this product
  1. 13
  2. 4 stars
    0
  3. 1
  4. 2
  5. 1 star
    0
Review this product
  • sacrified_
    2
    2 out of 2 members found this review helpful
    sacrified_

    Verified purchase

    It has a significant deviation in measuring humidity and slightly in temperature. I use it in a home greenhouse where I have two other thermometers-hygrometers (one digital and one analog). While the humidity is 60%, the sensor shows 50% and the temperature is 15°C instead of 12°C. There is no option for calibration in the application, and the difference is not consistent, so one cannot say that we will always add the same amount to the reading.

    Translated from Greek ·
    Did you find this review helpful?
  • Ioannis_Samaras53
    2
    2 out of 2 members found this review helpful
    Ioannis_Samaras53

    Verified purchase

    Unfortunately, there is a significant deviation in room temperature. It's a shame. In order to read it correctly, you will need to be next to the heat-cooling source.

    Translated from Greek ·
    Did you find this review helpful?
  • john53
    5
    2 out of 2 members found this review helpful
    john53

    Verified purchase

    I have been using it for three months now in an application that I have created. It has relative accuracy and responds quickly to changes in humidity.

    Translated from Greek ·
    Did you find this review helpful?
  • eurisakella
    5
    7 out of 7 members found this review helpful
    eurisakella
    Store representative

    Verified purchase

    It works perfectly. With the tests I conducted, it is more accurate in measurements when it is positioned vertically rather than horizontally.

    Translated from Greek ·
    Did you find this review helpful?
  • Mironas_Tsolakidis
    5
    2 out of 2 members found this review helpful
    Mironas_Tsolakidis

    Verified purchase

    Overall, the sensor is reliable and measures accurately. It is unlikely to break easily as it is an auxiliary component of a temperature control system.

    Translated from Greek ·
    Did you find this review helpful?
  • Pegasus45
    5
    3 out of 3 members found this review helpful
    Pegasus45

    Verified purchase

    I have it in operation under monitoring. I am interested in humidity and the indication is excellent. As well as the temperature indication

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    1 out of 1 members found this review helpful
    Giorgos_Papandrianos

    Verified purchase

    Small and discreet. Its sensors work accurately

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    1 out of 2 members found this review helpful
    nikos_german7801

    Verified purchase

    For the money, it is the best there is

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    1 out of 3 members found this review helpful
    KTSi systems

    Verified purchase

    Flawless product.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    stelioskos

    Verified purchase

  • 5
    Michalis83

    Verified purchase

  • 5
    nektariosprasidis

    Verified purchase

  • 3
    cdhakis

    Verified purchase

  • 5
    G!annis
    Expert user

    Verified purchase

  • 5
    nickdionisiou

    Verified purchase

  • 5
    Balantis_Tagkas

    Verified purchase

  • sacrified_
    2
    sacrified_

    It has a significant deviation in measuring humidity and slightly in temperature. I use it in a home greenhouse where I have two other thermometers-hygrometers (one digital and one analog). While the humidity is 60%, the sensor shows 50% and the temperature is 15°C instead of 12°C. There is no option for calibration in the application, and the difference is not consistent, so one cannot say that we will always add the same amount to the reading.

    Translated from Greek ·
    2
  • Ioannis_Samaras53
    2
    Ioannis_Samaras53

    Unfortunately, there is a significant deviation in room temperature. It's a shame. In order to read it correctly, you will need to be next to the heat-cooling source.

    Translated from Greek ·
    2
  • john53
    5
    john53

    I have been using it for three months now in an application that I have created. It has relative accuracy and responds quickly to changes in humidity.

    Translated from Greek ·
    2
  • eurisakella
    5
    eurisakella

    It works perfectly. With the tests I conducted, it is more accurate in measurements when it is positioned vertically rather than horizontally.

    Translated from Greek ·
    7
  • Mironas_Tsolakidis
    5
    Mironas_Tsolakidis

    Overall, the sensor is reliable and measures accurately. It is unlikely to break easily as it is an auxiliary component of a temperature control system.

    Translated from Greek ·
    2
  • See all

Description & Specifications

Smart temperature and humidity sensor, for use with Sonoff TH10/TH16.

The Sonoff SI7021 sensor is designed for use with TH10/TH16 smart switches and S22 sockets, providing accurate temperature and humidity measurements. The temperature is measured from -40°C to +85°C with a resolution of 0.1°C and an accuracy of ±0.5°C, while humidity ranges from 0% to 99.9% RH with a resolution of 0.1% RH and an accuracy of ±3% RH (at 25°C). The sensor offers fast response and high interference resistance, ensuring reliable environmental monitoring.

Jack type output cable

The sensor features a 50 cm long Jack-type output cable, facilitating easy connection to compatible Sonoff devices. Its small size and lightweight of 26 g allow for easy placement anywhere.

Features

  • Temperature measurement range: -40°C to +85°C
  • Temperature resolution: 0.1°C
  • Temperature accuracy: ±0.5°C
  • Humidity measurement range: 0% to 99.9% RH
  • Humidity resolution: 0.1% RH
  • Humidity accuracy: ±3% RH (at 25°C)
  • Power supply: 2.2 to 3.6 V
  • Output cable: Jack
  • Cable length: 50 cm
  • Weight: 26 g


Manufacturer

Manufacturer Details

Warnings & Safety Information

Specifications

Type
Temperature, Humidity
Air Quality
No

Air Quality

Includes sensors that, in addition to temperature and humidity, also monitor air quality.
Connection Method
Wired

Connection Method

Wired

Ability for wired transfer of measurement data and communication with other devices.
Cable Type
Yes

Cable Type

For wired data transfer or power supply in cases where the cable also includes a corresponding plug (e.g. USB)
Cable Length
0.5 m
Battery
No

Additional Features

Plug
Jack

Plug

The sensor's plug for wired connection with other devices or meters.
Temperature Range
-40°C to 85°C

Temperature Range

The minimum and maximum temperature range of the sensor.

Smart Attributes

Connectivity
Wi-Fi

Connectivity

The wireless communication protocol supported by the sensor for connecting to a device and transferring data.

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

Reviews (16)

4.5
16
4.5
Review this product
  1. 13
  2. 4 stars
    0
  3. 1
  4. 2
  5. 1 star
    0
Review this product
  • sacrified_
    2
    2 out of 2 members found this review helpful
    sacrified_

    Verified purchase

    It has a significant deviation in measuring humidity and slightly in temperature. I use it in a home greenhouse where I have two other thermometers-hygrometers (one digital and one analog). While the humidity is 60%, the sensor shows 50% and the temperature is 15°C instead of 12°C. There is no option for calibration in the application, and the difference is not consistent, so one cannot say that we will always add the same amount to the reading.

    Translated from Greek ·
    Did you find this review helpful?
  • Ioannis_Samaras53
    2
    2 out of 2 members found this review helpful
    Ioannis_Samaras53

    Verified purchase

    Unfortunately, there is a significant deviation in room temperature. It's a shame. In order to read it correctly, you will need to be next to the heat-cooling source.

    Translated from Greek ·
    Did you find this review helpful?
  • john53
    5
    2 out of 2 members found this review helpful
    john53

    Verified purchase

    I have been using it for three months now in an application that I have created. It has relative accuracy and responds quickly to changes in humidity.

    Translated from Greek ·
    Did you find this review helpful?
  • eurisakella
    5
    7 out of 7 members found this review helpful
    eurisakella
    Store representative

    Verified purchase

    It works perfectly. With the tests I conducted, it is more accurate in measurements when it is positioned vertically rather than horizontally.

    Translated from Greek ·
    Did you find this review helpful?
  • Mironas_Tsolakidis
    5
    2 out of 2 members found this review helpful
    Mironas_Tsolakidis

    Verified purchase

    Overall, the sensor is reliable and measures accurately. It is unlikely to break easily as it is an auxiliary component of a temperature control system.

    Translated from Greek ·
    Did you find this review helpful?
  • Pegasus45
    5
    3 out of 3 members found this review helpful
    Pegasus45

    Verified purchase

    I have it in operation under monitoring. I am interested in humidity and the indication is excellent. As well as the temperature indication

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    1 out of 1 members found this review helpful
    Giorgos_Papandrianos

    Verified purchase

    Small and discreet. Its sensors work accurately

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    1 out of 2 members found this review helpful
    nikos_german7801

    Verified purchase

    For the money, it is the best there is

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    1 out of 3 members found this review helpful
    KTSi systems

    Verified purchase

    Flawless product.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    stelioskos

    Verified purchase

  • 5
    Michalis83

    Verified purchase

  • 5
    nektariosprasidis

    Verified purchase

  • 3
    cdhakis

    Verified purchase

  • 5
    G!annis
    Expert user

    Verified purchase

  • 5
    nickdionisiou

    Verified purchase

  • 5
    Balantis_Tagkas

    Verified purchase

  • sacrified_
    2
    sacrified_

    It has a significant deviation in measuring humidity and slightly in temperature. I use it in a home greenhouse where I have two other thermometers-hygrometers (one digital and one analog). While the humidity is 60%, the sensor shows 50% and the temperature is 15°C instead of 12°C. There is no option for calibration in the application, and the difference is not consistent, so one cannot say that we will always add the same amount to the reading.

    Translated from Greek ·
    2
  • Ioannis_Samaras53
    2
    Ioannis_Samaras53

    Unfortunately, there is a significant deviation in room temperature. It's a shame. In order to read it correctly, you will need to be next to the heat-cooling source.

    Translated from Greek ·
    2
  • john53
    5
    john53

    I have been using it for three months now in an application that I have created. It has relative accuracy and responds quickly to changes in humidity.

    Translated from Greek ·
    2
  • eurisakella
    5
    eurisakella

    It works perfectly. With the tests I conducted, it is more accurate in measurements when it is positioned vertically rather than horizontally.

    Translated from Greek ·
    7
  • Mironas_Tsolakidis
    5
    Mironas_Tsolakidis

    Overall, the sensor is reliable and measures accurately. It is unlikely to break easily as it is an auxiliary component of a temperature control system.

    Translated from Greek ·
    2
  • See all
1,99 €
14,00 €   shipping cost