Professional chronometer THOMS TF-T500 — 3-line display, 10-hour timing

The THOMS Time Master TF-T500 professional chronometer offers precise multi-line time measurement with a three-line display and up to 10 hours of timing range. It stores measurements in grouped dual-partitioned memory (500 entries) and supports Bluetooth data transfer to computers and smartphones, making it suitable for professional timing tasks that require recallable records and extended measurement duration.

Advantages

The TF-T500 provides 1/1000 second measurement resolution and can record up to 10 hours. Its 500 dual-partitioned memory entries are organized by groups so data from different periods can be retrieved. The device supports Bluetooth transfer of recorded data in Excel format and is compatible with Apple iOS (8.0 and later) and Android (4.4 and later). Additional functions include a programmable pacemaker (5–240 beats per minute) with up to 10 memories, pulse frequency measurement with memory, countdown timer up to 9:59:59, power-saving and mute modes, low battery indicator, and a non-slip watch lens (1.8-inch display).

Suitable for

• Sports timing and training sessions
• Event and competition timekeeping
• Laboratory and production timing tasks
• Medical or fitness pulse monitoring with pacemaker function

Key specifications

• Category: Chronometers
• Model: TF-T500
• Maximum measurement time: 10 hours
• Measurement accuracy: 1/1000 second (display supports 1/100 second readout)
• Display: three-line, 1.8 inch screen
• Memory: 500 dual-partitioned entries with grouped recall
• Connectivity: Bluetooth; exports data in Excel format
• Countdown timer: up to 9:59:59
• Pacemaker: programmable 5–240 beats per minute, up to 10 memories
• Water resistance: up to 3 bar
• Battery: CR2450 (3 V) lithium
• Dimensions (L×W×H): 8.38 × 6.60 × 2.03 cm
• Weight: 96 g
• Patent: ZL201720554780.3

How to use

Power the unit with a CR2450 3V lithium battery and turn it on using the power button. Use the start/stop and split controls to record times and store entries in the device memory. Access stored groups to recall previous measurements. To transfer data, enable Bluetooth on the chronometer and pair it with a compatible smartphone or computer running iOS 8.0/Android 4.4 or later; export records in Excel format. Set the countdown timer or programmable pacemaker as needed using the device controls. Observe the low battery indicator and replace the battery when prompted.

Usage recommendations

For reliable results, avoid exposing the chronometer to pressures exceeding 3 bar and replace the CR2450 battery before long events. Use the Bluetooth export feature to back up recorded data regularly and ensure your smartphone or computer runs the required OS versions for compatibility.