The Trumeter 7954 is a multi-function digital time relay, offering 8 operating modes which can be easily configured on the 3 digit LCD display. The 7954 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 7954 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 7954 is tamper-proof due to the key lock feature, meaning 100% reliable operation. Features: Compact 17.5mm DIN rail mountable 3 digit LCD for easy programming Tamper proof with key lock feature Wide timing range: 0.1 seconds to 999 hour Multi-function: 8 non-signal and signal based functions Multi-voltage: 24 to 240VAC/VDC Option to select up/down counting CE, UL and cUL approved Operating Modes: ON Delay Cyclic OFF/ON Cyclic ON/OFF Signal ON/OFF Signal OFF Delay Interval Signal OFF/ON