TM-902C K Type Digital thermometer -50°C 1300°C Made in Taiwan or China?

Welcome to our Forum, extension and content sharing platform of Electrical Test and Measurement Product Reviews Blog.

Registration this is Free, we accept contributors of 17 years old and above. We do not accept registration with Gmail

Active since 7 June 2012

Copyright Notice: Entire ITTSB.EU content & images they are copyright protected. - Forum search engine disabled to Guests - No need of you using Adblock software.

Special meters: Temperature | Distance | Data loggers > Temperature Thermocouple (Sensor) K Type, Pt100, Pt1000

overvolt:
TM-902C this is originally electronic design of Lutron Taiwan, and is available for more than twenty years.
Oldest revision this had adjustable Cold-junction with external pot.

Modernized revision this has automatic Cold-junction compensation.

Thermometer specification:
Temperature range: -50ºC to 1300ºC
Resolution: 0.1ºC, 1ºC
Accuracy: 0ºC to 1300ºC (+0.75% +1ºC)
Working temperature: 0ºC to 50ºC
Storage temperature: -30ºC to 60ºC
Power supply: 9V battery (not included)
Weight with battery: 104g
Connection: mini K type (flat pins)
Size: 20x70x105mm

Price point starts from 2.5 Euro, TM-902C + One Thermocouple wire for 250C max (sensor bead type).
(But you may add to it better ones and professionally made probes: Immersion type / surface type etc etc ..)

What kicked my curiosity about this TM-902C / Lutron branded, is the label at the back.
By 99% this has identical format with the label of RST FG-100 which this is a soldering tip thermometer. ;)
https://www.ittsb.eu/forum/index.php?topic=1873.0

And now they are good chances both to come out from the same factory.
And here comes the NEW question: Made in Taiwan or China?

Kiriakos GR:
I think that Lutron Taiwan it did last production of TC-902, then Chinese copycat engaged and copied this design.
Lutron Taiwan this when away from TC-902 and changed the exterior design of their newer thermometer too.

TM-902C this is recent copycat production, of unknown Chinese factory. :P

Its true, copycat labeling this is identical to RST FG100, and this is an interesting detail.

Regarding true Lutron back side product labeling, I did find images that prove that is much different.
a) TC-902 Year 2004
b) Lutron dual K-type thermometer Year 2010?

Lutron back in time started by using two rear labels, serial code + tiny gold label = Made in Taiwan
This was 90s style of labeling :)

Second detail regarding authenticity, its the damn cheap K-type PCB connector that all Chinese copycat using.