The PU2/4 Proving Unit is a portable, simple to use battery operated voltage tester. It has an approx. output of 500v, designed to proof test all neons on Drummond MTL7 Test Lamps, Martindate VI-13700/G and other Low/Medium Voltage Testing Devices.
PU2/4 Proving Unit features:
2 x 9V Batteries, 6LF22, MN1604 or equivalent
500V nominal open circuit voltage, high frequency pulsating d.c. 4KHz nominal
10 x 10 for recommended operating force of 280 gms nominal, decreasing with excessive applied force
Neon indicates unit operating and voltage available at output terminals
-5 to + 45 degrees C
Moulded A.B.S Grey