Protimeter has developed this handy calibration device
Works with the 21-E and 18-ES electrodes
Extract rinse using Emulsifier Plus or Rinse Pro acid rinse
a brass one would not
non-marking wheels make stair climbing easy and do not scuff floors
Wagner Calibration Verification Block "L' Series Sebo Protimeter has developed this handyThe Wagner Calibration Verification Block "L' Series is used to verify the calibration of Wagner L Series Hand held Industrial Meters, including the L622, L620, L601 3, and the L722 Lumber Stack Probe, as well as our legacy hand held meters MMC205, MMC210, MMC220, and MMI1100, except for the L609. Wagner Meters handheld units are factory calibrated. With proper care, the meters stay in calibration. If the meter has been dropped or, for any reason, you