You are here: PRODUCTS / Electric Strikes / Fire and smoke protection / Fire protection / Model Range 142U Model Range 142U effeff 142U security door strikes are tested and approved locking devices for fire protection doors. Model series 142U fire protection door strikes are innovative product developments for the model series 142. Alternative use is permissible as a basic rule. Electric strike 142URFaFix® adjustment range, Monitoring contact, Fail-locked,… Electric strike 142UElectric strike FaFix® adjustment range, Fail-locked, TVS diode Electric strike 142UFElectric strike Fail-locked, TVS diode