The “Ardy” Receiver | 223 kHz
The Ardy analog receiver has proven to be the most economical and easiest to use for simple underground non-metallic line and septic tank locates.
Team the AR-1 with the ATP-12 flushable transmitter for dependable septic tank locating. The signal from the ATP-12 is very distinct and won’t be confused with any source of interference.
And it’s affordable – only $651 (in a kit with hard case and 3 ATP-12s)