This controller, with LED digital display, adopts high-quality components and fully automatic SMT process for good performance. It has 1 voltage detection channel and a set of relay switch output(normally open and normally closed). Features: LED digital display, mounting boss on the case, convenient and simple for user's needs. Procedures for intelligent control, realize over-voltage/under-voltage function. Wide range of working power: DC 8-35V; the voltage detection range is DC 0-99.9V. Adjustable input voltage detection sensitivity: 0.1-0.9s. The relay output timing range is 0-999s. To ensure stability, use industrial grade PCB board. Working Modes Selection: P-1: Delay Setting(set the delay time and pull time); P-2: Voltage Detection Control(detect the voltage to control the relay operation, initial release); P-3: Voltage Detection Control(detect the voltage to control the relay operation, initial pull); P-4: Over-voltage/under-voltage Control(voltage limit alarm). Specifications: Operating Power: DC 8-35V Voltage Detection Range: 0-99.9V 0.1V Detection Sensitivity: 0.1-0.9s Timing Range: 0-999s Contract Load: 10A/277V AC 10A/30V DC Contract Resistance: 100m1A 6V DC Machanical Durability: >10 millions Electricity Durability: >100,000 (10A-250V AC) Standby Current: 15mA/12V Min. Current(Close the Nixie Tube): 6mA/12V Relay Pull-in Current: 45mA/12V Operating Temperature: -40~85C Dimension: 78 * 53 * 30mm / 3.07 * 2.08 * 1.18in Weight: 74g / 2.61oz Package List: 1 * Time Relay Module