Hydrides represent the first steps of interstellar chemistry. Sulfanylium (SH<SUP> </SUP>), in particular, is a key tracer of energetic processes. We used ALMA and the IRAM 30 m telescope to search for the lowest frequency rotational lines of SH<SUP> </SUP> toward the Orion Bar, the prototypical photo-dissociation region illuminated by a strong UV radiation field. On the basis of previous Herschel/HIFI observations of SH<SUP> </SUP>, we expected to detect emission of the two SH<SUP> </SUP> hyperfine structure (HFS) components of the N<SUB>J</SUB> = 1<SUB>0</SUB>-0<SUB>1</SUB> fine structure (FS) component near 346 GHz. While we did not observe any lines at the frequencies predicted from laboratory data, we detected two emission lines, each ~15 MHz above the SH<SUP> </SUP> predictions and with relative intensities and HFS splitting expected for SH<SUP> </SUP>. The rest frequencies of the two newly detected lines are more compatible with the remainder of the SH<SUP> </SUP> laboratory data than the single line measured in the laboratory near 346 GHz and previously attributed to SH<SUP> </SUP>. Therefore, we assign these new features to the two SH<SUP> </SUP> HFS components of the N<SUB>J</SUB> = 1<SUB>0</SUB>-0<SUB>1</SUB> FS component and re-determine its spectroscopic parameters, which will be useful for future observations of SH<SUP> </SUP>, in particular if its lowest frequency FS components are studied. Our observations demonstrate the suitability of these lines for SH<SUP> </SUP> searches at frequencies easily accessible from the ground.< Réduire