Instruct: Classify the given Amazon review as either positive or negative.
Query: NOT up to the standards of the original

Beware these must have been farmed out to China for production as they have significantly less range than what was on the market as "The Reporter" just a year or more ago. Having owned several reporters and always being pleased we were disappointed when a set of batteries corroded a unit. We bought a replacement package and were shocked that the effective range could no longer work where we had the original system set up. This was approx 300' and now they cannot reach 100'!!! We bought an additional sensor and it to cannot achieve over 100'. The sensors have been downgraded somehow as I've set it up to work with either the old or new base station and the range stinks with either. I understand that advertised ranges are a pipe dream (1200' for this unit) but there is no reason a replacement unit should be of inferior quality to the original.