Hi,
We have actually never sold the Zip Level.
The Zip Level is made in the US whereas
Nivcomp is made in Germany.
I think in the early days the Zip Level was significantly more expensive and therefore we never imported it, favouring the Nivcomp instead. I believe they are now fairly equal on price and features but cannot be sure.
We have great links with the manufacturer and have dealt with them for years.
In terms of reliability, they are incredibly stable. I can honestly count on one hand the number we have had to send back to be serviced.
Although interestingly there is a user on this forum that actually had one fail, I think back in 2020 and this is the last one I can remember having an actual product issue we had to send back. This customer was just very unlucky that it developed a fault.
Another customer had one from around 2013/14 where the hose had split but I believe that was through storage / poor usage. As I say almost no trouble.
If anyone is interested, the product can be seen here:
https://www.laser-level.co.uk/nivcomp-ni0001-h25-hs.html
Mark Roberts
Laser Levels Online