The Delmhorst TM-100 Moisture Meters TM-100W/CS is an instrument that features rugged construction to withstand even the toughest work conditions offering years of use. Delmhorst brings its characteristic quality and support to temperature monitoring. Not only does this device monitor temperature in the air, it can also take temperature readings inside of various building materials with the use of special Delmhorst electrodes such as the TS-102 Sensor