... Work is more reliable with good quality.specification1.time range:5',15',30',60',75',90',120', ... 180'2.time tolerance:±6%3.temperature:-10-1254.working angle ... start-stops, half-way stop and time error. According to customers' requirements, the time tolerance can be 5% - 15 ... %. Our current product line covers the range of 0-720 minutes mechanical ...