Tel: 800-854-8530 (USA),
Tel: 951-699-2437 
Fax: 951-695-7246

A Division of Electro-Numerics, Inc., 42213 Sarah Way, Temecula, CA 92590, USA

MileMarker Raceclock
Models MM-01 & MMC-01
Super-bright 6" High LED Digits to Display
 Elapsed Time at Mile Marker Locations

Electro-Numerics MileMarker race clock mile marker race timer 

MileMarker Raceclocks use super-bright outdoor LEDs with 6" (152 mm) height and a 60 viewing angle for maximum visibility by runners at mile marker locations along the race course. The MileMarker features a rugged polyethylene plastic case with an integral carrying handle and built-in controls to start timing or selecting a preset time. Internal sealed batteries provide up to 10 hours of continuous operation on a single battery charge. An external battery charger with a charge indicator is included.

MileMarker Raceclock Model MM-01 is primarily intended for use in North America. It features a 120 Vac, 60 Hz battery charger and a US power cord set.


MileMarker Raceclock Model MMC-01 is CE certified and is primarily intended for international use. It features a switching battery charger suitable for 90 to 264 Vac, 50/60 Hz AC power. It is available with different power cord sets for use in different countries. CE certification covers safety according to IEC requirements, electromagnetic immunity (EMC), and electromagnetic emissions (EMI). Please see our MMC Declaration of Conformity.

MileMarker Raceclocks offer fewer features but are more economical than the full-feature LM Series Raceclocks (flip digits) or XL Series Raceclocks (LED digits) by Electro-Numerics.


  • Display:
    Five, high-intensity red, 6" (152 mm) tall LED digits readable in bright sunlight. Digits are comprised of discrete LED's arranged in a 7-segment format and provide a 60 total viewing angle. LED colons are provided for separation of hours, minutes and seconds.


  • Time Measurement:
    Timing to 9 hours, 59 minutes, 59 seconds (9:59:59) with roll-over to 0:00:00. Time may be preset to synchronize milemarker clocks with the finish-line clock.


  • Construction:
    Rugged, tamper-proof, impact-resistant polyethylene case with smooth edges and integral carrying handle. Red acrylic viewing window. Recessed rear controls.


  • Electronics:
    Solid state, microprocessor controlled, with a quartz crystal for timing accuracy. Controls for On/Off, digit select, and digit set provided at rear of clock.


  • Power:
    Sealed, lead-acid batteries provide up to 10 hours of continuous operation on a single battery charge (typical). A plug-in wall-mount battery charger with charge indicator is provided. Charger available for 120 Vac, 60 Hz power (non-CE version) or 90-264 Vac, 50/60 Hz power (CE version). MM01 & MMC-01 Battery Replacement Procedure.


  • Dimensions & Weight:
    Case size: 31" W x 11" H x 5-1/2" D (78 x 28 x 13 cm).
    Weight: 12 lbs (5.4 kg).


  • Warranty: 12-months


Tripod Stand, Model TS03

This rugged, lightweight, 6-foot aluminum stand is easy to set up and supports the clock for maximum viewing along the race course. An optional nylon carrying bag is available.

  Electro-Numerics MileMarker race clock mile marker race timer on tripod stand

Carrying Case, Model MM-01C

ATA designed case constructed polyethylene allows heavyweight protection in a lightweight case. Meets Air Transportation Association Specification 300, Category 1. Constructed with aluminum edging and recessed handles and latches. The internal high-density foam is cut out for the clock and battery charger.

Carrying case for Electro-Numerics race clock sports timers


Raceclock Sports Timing of Division Electro-Numerics, Inc.
42213 Sarah Way, Temecula, CA 92590, USA
Tel: 800-854-8530 (USA), 951-699-2437;  Fax: 951-695-7246;  sales@electronumerics.com