This LED DC voltage indicator circuit is a voltmeter, rather than simply a battery tester. As such it may measure voltages as low as 3V. It utilizes venerable LM741 operational amplifiers applied as ...

There are many applications where the accuracy of a digital or analogue (bar graph) is not required but something better than a simple low/high indicator is desirable. A battery charge level indicator ...

A rugged high-visibility voltage detection tool delivers visual and audible alerts to improve operator safety when ...

Fig 1. This voltage regulator circuit (a) uses green LEDs as both the stabilization elements and as the voltage indicators at the front-panel switch (b). Fig 2. The addition of resistor R4 to the ...

February 1, 2012 -- HDE's DVI-100 and DVI-500 Series Digital Voltage Indicators are designed to be used on both transmission and distribution systems in overhead and underground applications. The ...

These medium-voltage indicators flash with enough illumination to allow safe viewing from outside the enclosure through an access window These medium-voltage indicators flash with enough illumination ...

HDE's DVI-100 and DVI-500 Series Digital Voltage Indicators are designed to be used on both transmission and distribution systems in overhead and underground applications. HDE's DVI-100 and DVI-500 ...

All safety -- especially electrical safety -- is personal to employees. Little else matters to them unless electrically safe work conditions can be created and maintained through their work ...

APEM's Dual Icon indicators use green and red filters combined with vivid LED lighting to produce a 120° viewing angle.

Cree, Inc. announces the availability of brighter Cree® XLamp XT-E and XM-L High-Voltage LEDs to provide manufacturers more efficient, cost-effective components. Cree, Inc. announces the availability ...