Optional Receptacles for SU2200/3000 - L5-20, 5-20, 5-15
By APC

This is a optional BackPlate used with the SU2200, SU2200XL, & SU3000 UPS - ***Will not work for any other UPS especially the Rackmount versions*** - ... 

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3-LED Plug-in Circuit Tester Wiring Status of 120V Outlet 5-15
By Tripp Lite

Tripp Lite's instant-read CT120 circuit tester detects wiring stability in standard 120 volt AC wall sockets. Simply plug the circuit tester into a receptacle and view the lighted 3 lamp status display for verification of correct wiring, open ground, open neutral, open hot, hot-ground reversal and hot-neutral reversal fault conditions. ... 

Environmental Management System
By APC

The APC Environmental Management system is a browser-accessible 1U rackmountable appliance that allows monitoring of a broad range of environmental and related conditions. While monitoring of one temperature, one humidity and one vibration sensor ship as standard, this flexible system allows you to add sensors to suit your needs. ...