Features:

Reverse polarity protection design:
This temperature meter is designed with reverse polarity protection, positive and negative reversed will not burn, but the screen display nothing

Specifications:
LED Display: red 3Bit
Length of sensor: 0.5 meter
Probe thread: M6
Dimension: 48 x 29 x 2 3 mm
Cutting size: 45.5 x 26 mm
Display size: 35 x 18 mm
Display color: red
Case color: black
Test temperature rang: -30-800 degree
Temperature accuracy : +/- 0.3 degree
Supply voltage: DC12 +/- 2V
Power supply interface: DC12 +/- 2V
Refresh rate: about 500ms/ time
Operating temperature: -20 degree to 50 degree
Resolution: less than 100 degree is 0.1 degree, more than 100 degree is 1 degree
Protection: reverse polarity protection
Self power consumption:
Package includes:
2 x Temperature meters
2 x K-type temperature probes
2 x Black red 2-wires

Note:
Manual measurement, please allow little size errors.