The PosiTest CMM IS is a non-destructive concrete moisture meter designed for in-situ relative humidity (RH) testing in accordance with ASTM F2170. Featuring reusable smart probes, Bluetooth connectivity, and a combined sleeve and probe design, it simplifies installation without the need for consumables. The meter provides accurate and repeatable readings, with fast acclimation and reduced testing time. The probes remain powered on and broadcasting via Bluetooth while in situ for up to three weeks, ensuring continuous monitoring. The device is solvent, acid, oil, water, and dust resistant, making it durable for various field conditions.