digital electric program timer switch 1.wall mounting 2.8/10/16 groups /day 3.220VAC ... , neon lights,electrical bells, electric cooker, water heater, oven, booster, sprayer,bottler, heater, agriculture facilities and broadcasting equipments ect.Featureswall hanging ... Control Range:1min~168h ·Timing error <±2s/day(25°C±1°C)·Temperature:-10°C~+50°C · Relative Humidity<95%·Dimension:92×56×38mm Weight ...