Russia did an order mixed with different model such as Infrared thermometer , Soldering iron and multimeter
for the infrared thermometer it is 13 laser points, we have two model such as ST390 and ST490 for choice
the outlook of this two items is same, but function is a little different , Pls take a look the below for the difference:
|
Measuring Range (ST390+) |
-50 °C to 390°C / -58°F-734°F |
|
Measuring Range (ST490+) |
-50 °C to 490°C / -58°F-914°F |
|
ST390+ / ST490+ |
-50°C(-58°F) to 0 °C(32F)±3°C |
|
High Low Temp. Alarm |
only for ST490+ |
|
Emissivity(pre-set 0.95) |
0.10~1.00 adjustable only for ST490+ |
