Hi, Ms.Naing Naing Oo
For the Fluke 1555 model show on display as Fluke 1550 C unit, please send it back to Fluke we will do a one to one replacement for you.
Please kindly send the faulty unit to Fluke Singapore as the following address.
Attention to Mr.Eric Ng
Regional Sales Manager
Industrial Group
Fluke South East Asia Pte Ltd
1 Clementi Loop
#06-02/03/04
Singapore 129808
Mobile: +65 9767 1221
Email : eric.ng@fluke.com
Thanks.
Best regards,
Shan Shan MA