Tempo 262A 1310nm and 1550nm Dual Wavelength Laser Source is particularly useful for testing and maintaining telecommunications systems and other long wavelength singlemode fiber optic networks. The single output interface allows the user to perform fiber optic measurements at the 1310nm or 1550nm transmission windows by pressing a button, eliminating the need to disconnect and reconnect cables when changing wavelengths.

Tempo 252B Dual 850/1300nm LED Source performs multimode insertion loss and link loss measurements on local area networks, premises networks and Fiber Distributed Data Interface (FDDI)installations.

Tempo Compact DSP Butt-in Telephone Test Set is designed to operate safely in situations where telephone wiring may be carrying digital traffic, voltage feed to remote electronics or the hazardous voltages that result from fault conditions or misuse of the cable. This telephone test set when set to OFF mode, on connection to a circuit,the test set sounds an alarm to alert the user to the presence of voltages above 75V DC (nominal). Discontinued product - Suggested replacement by Tempo PE830

Tempo Alert 340 Butt-in Telephone Set is a high quality loudspeaker that provides clear sound output allowing the user to work without having to hold the test telephone. This Butt-in telephone set features Volume Boost that allows the user to increase the sound output of the loudspeaker when working in high noise environments. Discontinued product - Suggested Replacement by Tempo PE961