T-PROBE dual-frequency Transmitters also provide two models of D/ PD(to be Compatible with Digitrak Eclipse),The dual-frequency transmitter is the same size as the standard transmitter, and it can be set to transmit in dual-frequency mode (sending signal at both 1.5-kHz and 12-kHz frequencies) or in single-frequency mode (sending signal at 12 kHz)
●The dual-frequency mode provides a depth range of approximately 12.2m(D model) and 18 m (PD model) at either fre-quency, and is recommended in areas where rebar, wire mesh, or other metal (passive) inter-ference may be encountered.
●The single-frequency mode (12 kHz) provides a depth range of approximately 12.2m(D model) and 18 m (PD model) and is intended for use in areas of active interference. 
