Provides permanent record
The Wahl Breaker WB140 is a self-adhesive temperature-recording label featuring a silver-gray indicator that turns permanently and irreversible black in less than one second with ±1 percent accuracy, traceable to NIST. It is designed to warn of possible component failure or overheat of circuit breakers, motors, and electrical equipment. It provides a permanent record of overheating and continuously monitors 24/7 with no interruption due to power failure of battery exhaustion.
Wahl Instruments Inc.