Features: 1.Pc shell, fire-resistant and heat-resistant 2.Led high-definition screen, digital display panel is more intuitive 3.Silver contacts, stable performance, anti-oxidation, high work efficiency 4.Large capacity pins at the bottom, made of copper galvanized material, with high melting point, strong oxidation and corrosion resistance, and good conductivity 5.There are 4 delay modes: Power on delay mode, delay release mode, cycle delay mode, and cycle delay count setting Parameters: Product name: time relay (14 pin/4 open/4 close) Model: h3y-4 Voltage: dc12v, 24v, 220v (optional) Time range: 0.1s-99h Time error: 1% Power consumption: max.1.5va Environmental temperature: -25~75 & 8451; Allowable voltage range: 90-110% of rated voltage Working mode: Y: power on delay C: delayed release X: loop delay Lc: number of cyclic delays Mode setting: long press the s1 button on the left for 3 seconds, and the mode will automatically switch in a loop after flashing. Stop at the desired mode and release the button. After 5 seconds, stop flashing and save Time base setting: long press the s2 button on the right for 3 seconds, and the time base will automatically switch in a loop after flashing. Stop at the desired mode and release the button. After 5 seconds, stop flashing and save Number setting: Left click to switch modes Package include: Time relay*1 Base*1