How do I order a new sensor? Post author By gm5-devp Post date September 3, 2021 Contact your local Fieldpiece supplier and have them order part number “RHD1” Carefully insert the new sensor and replace snoot. The sensor can be inserted in two different configurations, either of which will allow the DR58 to function correctly. ← How long does the sensor last? → Why does my MG44 read – – – – ?