MCU (Microcontroller Unit) LCD Hour Meter (LM Series)

Part Number Information
Part #: Price/Availability:
LM series hour meter Inquire

Honeywell’s MCU (microcontroller unit) LCD (liquid crystal display) Hour Meters, LM Series, are sealed digital instruments designed to monitor and record elapsed running time, normally displayed in hours and tenths of hours. These devices are used to log running time of equipment used in transportation applications to assure proper maintenance of expensive machines or systems. This maintenance typically involves replacing, changing, or checking parts, belts, filters, oil, and lubrication of heavy duty equipment, or running condition of engines, motors, and blowers, to name a few. These devices feature a 40-year memory data retention (without power) to provide customers with a long data retention capability within their desired application. The large 7 mm display eases readability and offers backlight options and a running indicator. Sealing to IP67 provides enhanced durability. The hour meter also features a long reset time to offer customers the protection against malfunction of reset. The LM Series offers customization options including the customer’s logo, Honeywell logo, or a black face, as well as numerous customizable port options. 


• Backlight and large 7 mm display ease readability
• Digital, micro control unit LCD
• Durable design of mounting assembly
• IP67 environmental sealing provides enhanced durability
• Customizable with customer’s logo, as well as numerous customizable port options
• Function types, including hour meter (measures time) or counter (measures number of instances, starts, etc.)
• Fast delivery of samples and products due to Honeywell’s integrated supply chain and global design center
• Shock and vibration resistance allow for use in a wide variety of tough applications
• UL/CE approvals


• Agricultural vehicles
• Blowers
• Engines
• Heavy-duty construction vehicles
• Heavy-duty trucks
• Material-handling equipment
• Mowers


Datasheet (PDF)