Mechanical temperature controller / contact thermostat THERMASREG® ALTR with switching output (two-position controller). Applied for monitoring, controlling and limiting temperatures at pipes or vessels, e.g. in connection with hot-water or floor heating systems. The contact temperature controller THERMASREG® ALTR is built as one-step device, as adjustable temperature controller TR (external setting) or as adjustable temperature monitor TW (internal setting).

Surface contact temperature controllers THERMASREG® ALTR-1, ALR-3, ALTR-5, ALTR-7 including tension spring: