The future of installation testing is here The 1650 Series Multifunction Testers1650 Series Safer, easier installation testing. Robin and Fluke joined forces in 1999 to become the largest supplier of hand-held test and measurement equipment in Europe. These breakthrough products are the result of a combined experience of over 50 years in instrument design and development. The 1650 Series testers verify the safety of electrical installations in domestic, commercial and industrial applications. They can ensure that fixed wiring is safe and correctly installed to meet the requirements of IEC 60364 and BS 7671 16th Edition IEE Wiring Regulations. The unique ergonomic design, low weight, and padded neck-strap to free your hands, make operating a 1650 Series multifunction tester a pleasure. With easy-to-operate controls and a large display with exceptionally wide viewing angle, its also comfortable and safe to use. Select from two models 1652 1652: Performs all basic installation tests including continuity/insulation/loop impedance, RCD tripping time, RCD tripping current level and RCD auto-testing 1653: As 1652 but with earth resistance and phase sequence measurement. Has internal memory and a PC interface for documentation and reporting 1653 (see back page for a comparison chart) 1 Phase/Earth Voltage warning indicator 2 On/off button 8 3 Press to test button 4 1 4 Function buttons to assist easy navigation 5 5 Memory mode button 6 6 Scroll memory locations button 3 7 Backlight button 7 2 8 Test lead resistance zero button