Challenge Electronics Introduces


Piezoelectric Digital Smart Alarms

This new line of SMART-CONTROL-ALERT™ utilizes Microcontroller Technology offers distinct advantages over traditional analog alarms:

Improved Reliability

The Microcontroller significantly reduces the number of components required by the multiple analog circuits. As a result, the Potential Failure Modes and Effects Analysis score is substantially improved

Increased Stability

Voltage fluctuation, component tolerances, and temperature do not affect the Microcontroller, like they affect analog circuits which drift as much as 10%.

More Versatility, Fewer Parts

Programmable digital alarms achieve the following with a single device:

  • Multiple sounds: single tone, dual tone, tri tone – limited only by customer design
  • Time delay, time limit, priority alert.
  • Direct connections to sensors for alarm control
  • Control of functions or sounds via Hex/Binary/Frequency input signals
  • System interface to alarm via LIN/CAN/SPI/I2C BUS
  • Quick Design and Production Time

The universal Microcontroller circuit reduces new product design and production time from inception to delivery.


  • Microcontroller Sound Programming Technology
  • Reliable Solid State Piezoelectric Technology
  • Polarity and Voltage Surge Protected
  • Corrosion Resistant Stainless Steel Diaphragm
  • Extended Temperatures
  • Flame Retardant Plastic
  • IP-68; Water and Dust Proof Hermetically Sealed Alarm
  • NEMA 3R, 4X, or 12 with Gasket
  • RoHS, Lead Free Compliance


Applications for the

  • Agriculture
  • Appliances
  • Automotive
  • Communication
  • Construction Equipment
  • Electronics Equipment
  • Emergency Equipment and Vehicles
  • Fitness and Health Equipment
  • Gaming and Sport
  • Industrial Controls
  • Marine
  • Medical Equipment
  • Power Equipment
  • Security
  • Tools
  • Toys
  • Utility Vehicles

For additional information, please contact the Challenge Electronics Sales Department at

* SMART-CONTROL-ALERT is a Challenge Electronic trademark.