The BL 40 H from Gann is a made in Germany trade professional timber moisture meter set including a heavy-duty sliding hammer electrode. It is designed to be used for checking the moisture content of timber framing in new construction builds or renovation work. This type of moisture meter is what is used by council and local body building inspectors for a pre-lining check. The heavy duty M18 stainless sliding hammer, which connects to the BL H 40, enables the user to measure deeper into the timber, not just With a fast measurement time and for ease of operation, the large centre located measure button allows the user to rapidly measure the moisture content with the push of the button. A replacement pack of pins is supplied as backup in case a probe is bent or broken. An optional M18 stainless sliding hammer, which connects to the BL Compact S meter via a connection kit, enables the user to measure deeper into the timber, not just the surface moisture reading.