The worm gear drive technology and cast aluminum housing of the HM Series protects the clock mechanism from natures harshest elements such as wind shear, snow and ice.

HMR

The HMR employs an innovative transmission and reversible motor that will advance the hands 10 times speed for correction. A Master Clock Controller will provide automatic time corrections for daylight saving and power outages. The HMR is also compatible with 970 Series manual controls.

HMDR

The HMDR is a double face version of the HMR. A single mechanism drives back-to-back clock dials with spacing between 10” and 24” with appropriate shaft selection.

HMI

The HMI minute impulse advances incrementally each minute utilizing a single direction motor. An MC3-MI Master Clock Controller is required for operation and provides automatic correction. The HMI will not drift when employed in countries that do not regulate power line frequency or installations that may have generator backup power. An MC3-MI Master Clock with the 4 circuit expansion switches allows user to remotely adjust up to 4 clocks independently during installation or repair.