Our office will be closed Monday 5/29/23 in honor of Memorial Day. Orders made this day will be processed 5/30/23.
RKI Humidity Filter Disk is needed when ordering the for Phosohine (PH3) sensor individually. The PH3 sensor utilizes a humidity filter to prevent unstable readings around 0 ppm. Sold 5 filters per pack.
Rki Replacement Ph3 Sensor Esr-A13D-Ph3, Rki Instruments Sc-04 Series Ph3 Single Gas Monitor 73-0079, Rki Replacement Hcn Sensor Esr-A13D-Hcn, Rki Gas Monitor, Rki Carbon Monoxide Replacement Sensor Es-1821