8122 
The 8120 Series represents the most practical and convenient solution for the two channel temperature measurements.
8124 
The 8120 Series represents the most practical and convenient solution for the two channel temperature measurements.
8126 
The 8120 Series represents the most practical and convenient solution for the two channel temperature measurements.
Working Reference Standard 
Rugged, accurate and reliable working standard. Excellent stability and repeatability. High purity homogenous wires and insulating material.