With Lathem's wall clocks, the Master Control series can improve attendance, organize schedules and increase efficiency.

The LTR Series are compact and lightweight units incorporating CMOS microprocessor technology, providing extraordinary capability and flexibility. All program entries are easily and quickly made through the keypad on the master clock front panel.

The system can be programmed for three bell schedules, each capable of accepting 128 entries. A capacity of up to eight zones for "on" and "off" control lighting, heating, air conditioning and other equipment is built into the system. An internal, user-selectable lockout switch prohibits all entries from the keypad (except manual bells operation) unless a previously entered 4-digit code is used.

LTR Series Features

• Keypad allows convenient programming and changes to schedules.
  
• Internal security switch prevents unauthorized tampering.
  
• Seven weekly schedules for each circuit can be entered in advance and activated as needed. Each schedule can have up to 64 events.
  
• Each event includes the days(s) of the week, the circuit(s) and the time.
  
• Available with surface or semi-flush mount.
  
• Internal battery retains memory and timekeeping during power failures lasting up to 7 days.
  

A keypad allows convenient control of secondary wall clocks. There are options for minute advance and one hour advance. If desired, a 4-digit security entry code can be required by keypad to prevent tampering.

Mini-Master Features

• Controls virtually any type of secondary clock system.
  

• Keypad allows convenient control of secondary wall clocks.
  

• Designed for surface mounting, with hole plugs for easy wiring during installation.
  

• Daylight Saving time changes can occur automatically.
  

• An internal battery retains memory and timekeeping during power failures lasting up to 7 days.
  

• Display 12 or 24 hour format.