618263 Trumeter 8 FUNCTION DIGITAL TIMER RELAY - Trumeter 7957, The Trumeter 7957 is a multi-function digital time relay, offering 18 operating modes which can be easily configured on the 3 digit LCD display. The 7957 features a wide timing range of 0.1 second to 999 hours to suit all applications with a clear indication of the changeover relay status via the front panel LCD. The 7957 comes in a compact 17.5mm DIN-Rail mountable case and can accept a wide range of operating voltages for most installations. In addition, the 7957 is tamper-proof due to the key lock feature, meaning 100% reliable operation. Trumeter 7957 18 FUNCTION DIGITAL TIMER RELAY