Electrical Testing ServicesLearn MoreOne stop for your electrical safety equipment needs, cleaning, and electrical testing services. Dielectric testing for our electrical testing laboratory.Ashcroft GaugesLearn MoreChoose from our Ashcroft gauges. Options include glycerin liquid filled pressure gauge types. Ashcroft gauge repair and calibration is also available.Hot SticksLearn MoreJM stocks Salisbury and Hastings electrical hot stick items. JM can rent, repair, wax, test, and inspect your high voltage shotgun + telescopic hot stick.Emerson Hart 475 Communicator ...Learn MoreRent the Emerson Hart 475 Communicator from JM Test's rental division. Rental options include rental SKUs like 475FP1EKLUGMTS, 475HP1EKLUGMTS, and more.