401 Mechanical and electrical stopwatchDetailed product description：

401 Mechanical stopwatch is used to measure the continuous and triggering time of any mechanical contact, measure the action time (suction, release, conversion) of various relays, switches, and contactors, and with additional devices, convert the measured signal into a switch signal to measure various time parameters Anti electromagnetic interference

401 mechanical electric stopwatch is used to measure the continuous and triggering time of any mechanical contact, measure the action time (suction, release, conversion) of various relays, switches, and contactors, and with additional devices, convert the measured signal into a switch signal to measure various time parameters Anti electromagnetic interference
Measurement range: 0.01S-60S
Accuracy: ± 0.006S (seconds) (1 measurement, power frequency standard 50Hz)
Power supply: 110/220V ± 10%, 50Hz
Weight: Approximately 4Kg,
Portable size: 120 × 125 × 195mm