Innovating Underground Locating Since 1933
Call Us We Can Help!  (800) 782-6614

Now, with a re-vamped circuit, the already popular Goldak
Model 777 has become even more of a must-have for anyone
serious about slab leak detection.

3X the Sensitivity
Low-Noise and Maximum Sensitivity
Pin-Point Waterleaks Better!
Proven Water Leak Detection For Over 40 Years
Fill Out the "Upgrade" Kit Online Form,
Include All Contact Information and 777 Serial #
Purchase Upgrade Kit for $299.00 + Shipping
You Will Receive a Pre-Paid Shipping Pack For
You to Ship Your 777 Back to Us
Place Your 777 in the Shipping Pack and Drop
Off at the Nearest US Post Office
We Will Upgrade Your 777 Into a 777 MAX
We Will Ship It Back to You in 72 Hours
777 MAX Product
Specification Sheet