Schedule up to 40 bell events with adjustable 1–99 second ring durations for precise school routines. The unit runs on AC 220 V with 16 A thermal current rating and offers a long mechanical life for dependable daily use. An LCD with internal backup retains display settings while latitude/longitude simulation allows automatic time adjustments for special schedules. Compact plastic housing (approx 8.6 × 7.4 × 4.2 cm, 0.12 kg) mounts easily and can be reset via terminal shorting when required.

Model	Qs-Tx04
Colour	White
Material	ABS Plastic
Rated control power (Voltage)	220 V AC
Conventional thermal current (Ith)	16 A
Control circuit category	AC-15
Number of programmable settings	40 groups
Belling time range	1 s to 99 s (per event)
Timing accuracy	±1 second/day
Mechanical/electrical life	Mechanical: 30,000 cycles; Electrical: 10,000 operations