After over 80 years, Nilsson Electrical Laboratory has closed their doors and is no longer making cathodic protection related products.  If you're in the market for a Nilsson instrument, we suggest the following alternatives:

 

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A Nilsson model 400 soil resistivity meter:
44550 aaa miller400a
M.C. Miller model 400A		 44550 d miller400d
M.C. Miller model 400D		 tink44 2
T&R model SR-2

 

 

 

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A Nilsson model 830 current interrupter:
12815 a c130M.C. Miller model CI-30 12820 a jr1 
M.C. Miller model JR-1

 ci 50 kit resized
T&R model CI-50

 

 

 

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A Nilsson model 715 pipe and cable locator:
tinker42 2   
T&R model 505 Go-Fer		     fisher tw 6a 2
Fisher model TW-6

 tinker18a 1 1
T&R model PD