TVT Temperature Measurement Terminal Tested

By: Derek Ward, Published on Jul 23, 2020

While Dahua and Hikvision get the most attention for China temp products, their domestic competitors such as Shenzhen TVT are rolling out offerings that are being relabelled by various companies such as Avycon, Invid and TVT. How well do they work?

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We tested the TVT TD-E2128-TM, examining:

  • How often did it miss elevated temperatures?
  • How accurate are measurements vs IR thermometer?
  • Can it measure taller and shorter people?
  • What environmental factors impact performance?
  • How well does it measure with hats and hair covering the forehead?
  • How well does mask detection work?

Executive *******

** *** *******, *** TVT **-*****-** ********** ****** elevated **** ************, ********* measuring ******** ** ~*°* below * ********** ** thermometer, **** ** ****** or ******* *********** ********** available ** **********. ********, one ***** ** ** quite ***** ** *** unit **** ** *** detecting ****** *.* ****** / **" ** *** device.

************, *** **** ********* was ****** ******* ** covering *** ****** ** the **** **** ***** or **** ******* *** face *** ****** ** recognize ******** **** ******* masks ****** **** **** enrolled ***** ******* ***.

Vs. ***** / ********* / ******

******** *******,*********, ******************** *********** *********, *** TVT **-*****-** ******** **** more ****** ********** *** had ******* ****** **** subjects ** ******* *******. Additionally, ** ***** **** American **********, *** *** terminal ***** *** * similar *****, ~$*,*** - $3,000 *** (********* *****).

*******, ***** *** ****** incorrectly ******** ************ ****** its ******* ********* *****, TVT ******** ***** ** move *******, ***** ** far ****** *** ******** but **** ********** *** users.

Vs. ******* / ****** ****

******** ** ********* **** *** ******* terminals** **** ******, *** TVT ***** ******** **** similar ****** ********* ****** but *** **** ************* of ******** ** ********* heights. ******* ** *** TVT ******** **** ***** American **** ** ************* higher **** ****** ****, ~$3,000 **. ~$*,***, *** even **** *********** ******** to ******* *******, ~$***.

Basic ********* / "**** ****" ***********

******* ** ***** *** Hikua *********, ** *** the *** ********, ******** simply ******** ** *.*-*.** (~1-1.5'), ***** *****. *** terminal ******** * ********** indicating ***** ******** ****** place ***** ****, **** the ****** ** *** forehead ****** ** *** "Temp ****" ***** *********** takes *****.

*******, **** **** ** a **************, **** ************ still ***** ** ********' foreheads *** *** ******* in *** **** **** In *** *******, ************ were ***** ** ** to ~*.*°* ******* ** the **** ****, ******* the ****'* ********* ******* the **** ***** ***** measured.

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*** ******** ************ **** typically ****** ~*.*-*.*°* ** an ****** ***** ******** thermometer **** ******** **** at ****** ************.

No ***** ****** *.* ****** / **"

**** ******** *** ****** the ********* ********, *** device **** *** **** readings, ****** ********* *** prompting ******** ** '****** stand ******', ** ***** below:

Missed ******** ************

** *** *******, *** device ********** *** ********** missed ******** ******** ************ as ~*°* ***** * handheld ** ***********. **** was **** ** ******** scenes ***** * ********* subjects ** ****** ** attempts.

***** *****, ******** **** low ***** ***** ************ (~100°F) **** ******** *°* lower ** * ***-******* controlled ********* (~**°*) *** in ** ***-*********** ***** (~70°F).

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****** ********** **** ** these **** **** ****** in ***** ****** ******** tests, *************** **** / ***************.

Ambient *********** / ******** ****** ** ***********

** ******* ********** ************, the *** ******** ******** measurements **** **** ****** its ~*.*°* (~*.*°*) *****, for ******* * ~**°* office. *******, ** * hotter *** **** ***** warehouse, ******** *********, **** subject ******** ~*.*°* ** more ******/***** **** ** Extech ** ***********.

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Lobby / ********* ******

**** ****** ******* ***** or ****** *********, *** testing ****** *** *** issues. *****, **** ******** were ******** ******* **** exterior *****, *** *** terminal ******** **** ************ as ** ******** *** objects ****** *** *******. Second, ******* ****** *********, the ******** ********** ****** to **** ************ ** all, ****** ******* "**** temperature ****** ** *********."

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** ******** ******* *** available ** ******* ***** issues.

Wide ******* ****** ***** ********

** *** *********** ******** height ** *.** ****** (~4'9"), *** *** ******** measured ******** ** ******* ranging **** ~*'*" ** 6'2" ****. *******, ************ outside *** "**** ****" were ******** ***** **** those ******** ******* ********* to ***'* ***************, ** ~0.1-0.2°F.

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**** ****** ***** ** wider ******** ** * number ** ***** ********* we **** ****** (*****, Sperry ****, ******), ****** not ** **** ** Dahua ** *********.

Limited ************* *******

*** *** ******** *** web-GUI *** *** ************* options, *********** ******** * user **** ** *** an ***** ********* *** low *********** ****. ***** is ** ****** ** compensate *** *******/************* ************ or *** ** ****** like ***** ***** ** Hikvision ** *****.

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Hats *** **** ***** ***********

******* *** ******** ** used *** *********** *********, the ****** **** **** a *******’* *********** **** with * *** ** hair ******** **, ********* in ***** *********** ************.

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Mask ********

***’* **** ********* ** easily ******* **** * subject ****** *** ***** half ** ***** ****, such ** **** * hand, ***, **** *****, or ****** ***. ************, if *** *** ** coffee ** ***, *** device **** ****** * subject **** ** ******** temperature.

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Slightly ****** **** ******** ** ******

*** *** **-*****-** ******** is ******** ****** **** other *********** *********, **** as *** ********* ****** and *** ****** *” model, ***** *****.

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Glasses *** ***** ****** ****** *********** ********

**** ********* ***** *** facial *********** ** ***, we *** ** ****** users ******* ***** *** without ** ***** *** them ** ** ******** recognized. ***** ******** ******* masks **** *** ********** when ******* ****, *** sometimes, ******* **** ******** user ******** ********.

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Made ** *****

*** *** **-*****-** ** made ** *****.

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US **********

*** *** ******** ** relabeled ** ******** ****** in *** **, ********* Avycon (******-**), ***** (***-************), *** ***** (*****), ******* *** ~$*,*** to *,*** *** ******. TVT **** *** **** a ****** ** *******.

*** *******, ********* *** version *** *** *********** from ** *****-******* *****, the ***** ***** ******* shows **** ******* ***** * TVT *** (**:**:**). ************, *** ******** and ****** ******** *** nearly ********* ** ***** used ** *** *** model **** ** *** testing.

Firmware/Software ****

** ****** *** *** TD-E2128-TM **** ******** ******* 5.0.1.0 (****), ****** ******* 20200516, *** ******** ******* 1.4-1422322M2.

Comments (3)

**** ******* ** ***** is * *** ** determine ** ***** ******* fall ***** **** *** by *** ** ****** HiSilicon?

***** **#*,

*** *** ****** **** utilize * ********* ****, as *** ******* ***. It ** ***** *** in *** ****** ** the *****, ***** ** day.

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****** *** ******** **** point **. ***** ****** be ******** **** ****** to ***** *** ********* US ****** **** ******* to *** **** ***.

***** ******* ******* ******* from ********* ************* **** similar ** *** ********* on *** ******* ********* applications *** *********. * know ** * ********* apps *** * **** installed *** **** ** the **** ****** (*** and ***** ****). ** far * **** **** MIPS ***** ****, ***, Face++, *** ******* ******* applications. ***** **** *** TVT ****** ********** ***** Chinese ******* **** *** Heimann ****** ** ***** be **** ** **** more ***** ************ **** I ****** *** ********* face *********/*********** **** / APIs. * ******* *** key ********** ** ***** generic ******* *** *** sensor, *** **** ********* algorithm, *** *** *********** processing/compensation *********.

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