... Cooling system: Watercooled 11) Certificate: ISO9001,CE,CCS Certificate 12) Control unit type: Integral type 13) FOB price: FOB QINGDAO USD ... Voltage return time: ≤4s 24) Voltage modulation: ≤0.3% 25) Control system: a) Automatic alarm system: the unit has the acousto ... g) Air cleaner, fuel cleaner, oil cleaner h) On-board control panel i) MCCB air conservation switch j) 12 / 24V starting accumulator ...