The 381a is a non-contact and contact temperature tester with laser sighting to confirm your target.

The 381a uses K-type thermocouples with sub-mini connector for contact measurements.

$74.95 USA Suggested List Price

Frequently Asked Questions

What does “distance to spot ratio” mean?
The laser spot needs to be showing inside the target area. An 8:1 “distance to spot ratio” means you are measuring a 1” diameter area at a distance of 8”.
How far can I measure?
Distance is unlimited. The size of the target area sets the limit on distance for accurate measurements. Example: If the area you wish to measure is 1 foot in diameter, then you will need to be within 8 feet to record an accurate temperature.
What is the smallest target I can read?
Approximately one-half inch in diameter.
What is emmisivity?
This is a ratio of an object’s infrared emission compared to a theoretical black body considered 1. Emissivity is always less than 1. Adjustable emissivity allows your non-contact thermometer to be adjusted to the surface you are checking to make readings more accurate.

Model 381a Specifications
Temperature Range	Non-contact: -4° to 572°F (-20° to 300°C) Contact:* -148° to 2192°F (-100° to 1200°C)
IR Accuracy @ 23°C and 0.95 emissivity	± 5°F (3°C) below 32°F (0°C) 32°F to 572°F (0°C to 300°C) ± 2% of rdg or ± 3.5°F (2°C) whichever is greater
Contact Accuracy	+(0.5% of reading + 3.5°F (2°C)
Distance to Spot Ratio	9:1
Response Time	500mS
Spectral Response	7 to 14um
Emissivity	0.95 Fixed
Laser Sighting	Output <1mW, Wavelength 645-660nm, Class II Laser
°F or °C	Selectable (slide switch in handle)
Contact or Non-contact	Selectable (slide switch in handle)
Display Hold	Yes
Operating Temperature	32°F to 120°F (0°C to 50°C)
Battery Type	9V