Protimeter Hygrostick Humidity Sensor (Single Replacement POL4750) Base UOM:EACH How do I know it

How do I know it is the valve

that you can give them to your customers as a thank you

be careful to not over apply

Using Clearwater Rinse as your final extraction rinse allows you to get the carpet cleaner than with conventional acid rinses

What is the ball and spring inside

Protimeter Hygrostick Humidity Sensor (Single Replacement POL4750) Base UOM:EACH How do I know itProtimeter POL4750 Single Replacement Hygrostick Compatible with Protimeters MMS and MMS2 Moisture Meters Compatible with Protimeters Hygromaster Thermo Hygrometer Optimised for harsh environments Measure the relative humidity of building materials such as concrete floors Relative humidity range: 30 100% A ready to use replacement for the hygrosticks supplied with the MMS, MMS2 and Hygromaster instruments