Extech mo270 wireless combination pin pinless moisture meter extech mo270 the extech mo270 wireless combination pin pinless moisture meter has detachable pin pinless sensors to transmit data to the display so that readings can be viewed from a remote location up to 20m 65ft from the measurement point the wireless sensor affixes to a telescoping handle 1 2m 4ft for measurements in ceilings or in hard to reach areas the meter can connect to multiple sensors on individual channels and has