Do you struggle with time management daily? Both children and adults face this challenge. Visual timers offer a powerful solution.Time perception difficulties affect everyone. Abstract clock numbers confuse young minds.
In today's fast-paced world, the need for efficient time management tools has never been more critical. Enter the Smart Timer, a revolutionary device designed to enhance productivity and streamline daily activities.
In the modern educational landscape, the use of technology in classrooms has become increasingly prevalent. Among the various tools available, the Classroom Timer stands out as a versatile and essential device.
In the realm of counting and recording, the Tally Counter stands as a quintessential tool. Whether in educational settings, sporting events, or inventory management, this device plays a pivotal role in ensuring accuracy and efficiency.
In today's fast-paced world, the need for precise timekeeping has never been more critical. The evolution from traditional analog clocks to digital clocks marks a significant leap in how we perceive and utilize time.
PURSUN Model PS-1688 is a professional-grade timer with 42 preset rules, multi-segment countdown, and parameter saving—designed for international chess/Go tournaments, advanced training, and federation events. It supports unequal player times, move count display, and mute function, meeting global competition standards.
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Compliant with FIDE, IGF, and Chinese Chess Association rules: 42 preset modes (e.g., 120min/40moves +30s, 60min-30s/step countdown) eliminate setup errors. The seesaw buttons switch players in ≤0.1s—perfect for blitz chess.
Coaches set multi-segment timing (e.g., 90min + 30min/20moves +10s/step) to simulate complex tournaments. The move count display tracks players’ speed, and parameter saving reuses custom modes for repeated training.
• Seesaw Buttons: Tilted side indicates active player; quick response for fast chess.
• Dual Screens: 1.8-inch LCDs with 5-level brightness (readable in sunlight: ≥300 nits).
• Back Rule Printing: 42 preset rules printed on the back—no manual needed during tournaments.
• Shell: ABS + PC composite (withstands 1.5m drops onto concrete).
• Screens: Anti-glare panels (readable under direct sunlight).
• Circuit: Industrial-grade chips (stable at -10°C–50°C for outdoor tournaments).
Parameter | Details |
Brand/Model | PURSUN PS-1688 |
Dimensions | 161mm (L) × 100mm (W) × 62mm (H) |
Weight | ~245g (with batteries) |
Display | Dual 1.8-inch LCD (5-level brightness) |
Preset Rules | 42 (chess, Go, Chinese chess, Shogi) |
Timing Functions | Multi-segment countdown, step delay, unequal parameters, move count display |
Custom Modes | 10 saved user-defined modes (00–41) |
Power Supply | 4×AA batteries or USB-C 5V/2A (fast charge) |
Sound | Muteable (3 volume levels + low-time beep) |
Connectivity | USB for firmware updates |
Certifications | CE, RoHS |
Covers global rules (FIDE, IGF) and regional styles. User-defined mode sets basic time, increment, and move limits freely.
• Unequal Parameters: Set different times for handicap matches (e.g., Player 1:90min, Player 2:60min).
• Firmware Updates: USB updates add new rules (e.g., 2024 FIDE changes).
• Mute Function: Ideal for online tournaments (avoids background noise in camera view).
• Tournament Support: On-site technical help for large events (national championships).
• Warranty: 36-month warranty for professionals + free annual calibration.
• Global Service: 20+ local centers (USA, Germany, Japan) for 3-day repairs/replacements.


Compliant with FIDE, IGF, and Chinese Chess Association rules: 42 preset modes (e.g., 120min/40moves +30s, 60min-30s/step countdown) eliminate setup errors. The seesaw buttons switch players in ≤0.1s—perfect for blitz chess.
Coaches set multi-segment timing (e.g., 90min + 30min/20moves +10s/step) to simulate complex tournaments. The move count display tracks players’ speed, and parameter saving reuses custom modes for repeated training.
• Seesaw Buttons: Tilted side indicates active player; quick response for fast chess.
• Dual Screens: 1.8-inch LCDs with 5-level brightness (readable in sunlight: ≥300 nits).
• Back Rule Printing: 42 preset rules printed on the back—no manual needed during tournaments.
• Shell: ABS + PC composite (withstands 1.5m drops onto concrete).
• Screens: Anti-glare panels (readable under direct sunlight).
• Circuit: Industrial-grade chips (stable at -10°C–50°C for outdoor tournaments).
Parameter | Details |
Brand/Model | PURSUN PS-1688 |
Dimensions | 161mm (L) × 100mm (W) × 62mm (H) |
Weight | ~245g (with batteries) |
Display | Dual 1.8-inch LCD (5-level brightness) |
Preset Rules | 42 (chess, Go, Chinese chess, Shogi) |
Timing Functions | Multi-segment countdown, step delay, unequal parameters, move count display |
Custom Modes | 10 saved user-defined modes (00–41) |
Power Supply | 4×AA batteries or USB-C 5V/2A (fast charge) |
Sound | Muteable (3 volume levels + low-time beep) |
Connectivity | USB for firmware updates |
Certifications | CE, RoHS |
Covers global rules (FIDE, IGF) and regional styles. User-defined mode sets basic time, increment, and move limits freely.
• Unequal Parameters: Set different times for handicap matches (e.g., Player 1:90min, Player 2:60min).
• Firmware Updates: USB updates add new rules (e.g., 2024 FIDE changes).
• Mute Function: Ideal for online tournaments (avoids background noise in camera view).
• Tournament Support: On-site technical help for large events (national championships).
• Warranty: 36-month warranty for professionals + free annual calibration.
• Global Service: 20+ local centers (USA, Germany, Japan) for 3-day repairs/replacements.
