This electrical test kit includes the tools to troubleshoot common electrical problems. The r5099-kit electrical test kit includes a compact multimeter (r5099) ac voltage detector (r5110) receptacle tester (r5210) and carrying case (r9940) to keep your instruments protected and organized. Kit includes ul style""margin-top0px; padding-top 5px; padding-bottom 5px;"" reed r5099 compact multimeter with ncv autoranging digital multimeter with built-in non-contact voltage (ncv) detector and 4000 count backlight lcd display reed r5110 non-contact voltage detector with flashlight ac voltage detector with built-in flashlight and pocket clip reed r5210 receptacle tester with gfci check the status of and troubleshoot 3-wire circuits and gfci receptacles reed r9940 hard shell carrying case medium this hard shell carrying case protects items and is suitable for small to medium sized instruments. Applications ul style""margin-top0px; padding-top 5px; padding-bottom 5px;"" testing batteries testing household wiring testing electric motors testing power supplies