Probe holder for calibration of HMD60/70 Series transmitters

During calibration, the probe holder facilitates keeping the HMD60/70 Series transmitter and hand held meter probe tips next to each other. This is important to ensure same environmental conditions for both. The probe holder is attached to the enclosure of the HMD60/70 transmitter and holds the reference probe parallel to the HMD60/70 probe. Compatible only with the HM46, HMP76 probe of HM70 meter, and HMP46 probe of the HMI41 meter.