Di-Log DL9120 Advanced Multifunction Tester. The All-New Dl9100 Series Multifunction Tester Has Been Designed To Fully Comply With The Testing Requirements Of The 18Th Edition. Made In Britain, The Dl9100 Also Incorporates Many Of The Features That We Have Come To Expect With Modern Mfts And More. The Dl9120 Has Many Exciting New Features Including A Brand New Rgb Colour Changing Screen Visually Indicating Potential Pass/Fail Conditions, Type B Rcd Test, A Fully Automated Continuity & Earth Loop Auto Start With A Secondary Display To Capture The Recorded Results, 2/3 Wire High Current Loop With Intelligent Detection Identifying If The User Is Conducting A 2 Wire Or 3 Wire Loop/Pscc Measurement Without The Need For Selection And A Variable Rdc Test Feature To Dial In Bespoke Ma Values. The Dl9120 Offers Incredible Value For A Feature-Packed Mft Meeting All The Safety And Performance Requirements Of Bs En 61557. Residual Current Device.