This sale is for a NEW ECU  24 Volt Battery Voltage Detector Model VLD2 . 2-3/4" high, 2-1/4" wide, 1-1/2" thick.  
The ECU-VLD2 has built in sensor circuits to detect system voltage levels. 
The module will detect high voltage and low voltage. The ECU-VLD2 has 
relay output contacts. The module replaces two voltage detector relays in 
function.
APPLICATIONS: 
Standby Power Systems
Engine-Generators
Annunciator Panels
FEATURES:
• Completely self contained circuit detects 
both High and Low levels
• Allows easy interface to lamps, relays, 
horns, and other system components
• Adjustable High and Low voltage trip 
points
• Built in hysteresis eliminates lamp flicker 
and relay chatter
• Epoxy molded for superior in field reliability
• Low cost, easy installation