ArenaGear Sports Timer RM-501 ProAgility - One-Gate Agility Timer

Our review of the ArenaGear Sports Timer RM-501 ProAgility finds it best suited to coaches and trainers who need a simple, accurate one-gate timing solution for agility work and lap counting. The single clearest reason to choose this unit is its combination of precise 0.001 second timing and completely wireless operation, which makes setup and splits easy for high school football, hockey conditioning, and standard agility tests without the fuss of cables. It is a focused tool: excellent for one-line starts and lap timing, but not intended for two-gate dash timing.

Key Features

• One-gate timing: Ideal for drills and lap counting that start and stop at the same line, offering reliable single-gate measurements for events like the 5-10-5 shuttle and L-Drill.
• Wireless display: Any phone or tablet running the free app can receive times up to 400ft away, removing the need for on-court displays or cables.
• High accuracy: Records times to three decimal places (0.001 s), useful when small differences matter in combine-style drills and split timing.
• Long battery life: Runs 150+ hours on a single set of AA batteries, so it survives long practice days without frequent battery swaps.
• Memory retention: Saves the last 500 runs in memory so coaches can review recent attempts without relying solely on connected devices.
• Safety and portability: Eye-safe infrared beam and two included tripods make the unit easy to place and safe around athletes.

Who It's For

The RM-501 is aimed at coaches, trainers, and physical education programs that run one-gate drills such as the Illinois agility test, three-cone shuttle, four corners, the T test, and many football combine agility drills. It is also well suited to ice hockey lap speed training where lap counting and split times from a single line are needed.

Those who need to time straight dash runs or any drill requiring separate start and finish gates should look elsewhere or add a dedicated finish gate like the RM-501F; the RM-501 is not designed for two-gate dash timing. Power users who require integrated wired systems or display towers should also consider more complex setups.

Pros & Cons

Pros

• Completely wireless setup makes it fast to deploy across fields and rinks.
• Very accurate to 0.001 seconds, useful for tight agility comparisons.
• Large device-to-phone range lets multiple observers see times on their own devices within 400ft.
• Long AA battery life and 500-run memory reduce interruptions at practices.

Cons

• One-gate design means it will not time two-gate dash events without adding a finish gate.
• Relies on phones or tablets running the app for display, so users must manage device compatibility and app setup.

Specifications

Model	RM-501 ProAgility
Timing gates included	One gate (two tripods included)
Accuracy	0.001 second
Wireless range	Up to 400 ft to phones/tablets
Power	AA batteries, 150+ hours per set
Memory	Last 500 runs
Beam type	Eye-safe infrared

Our Verdict

The ArenaGear RM-501 ProAgility is a focused, easy-to-use one-gate timer that offers excellent value for teams and coaches who run single-line agility drills and lap timing. With precise 0.001 s accuracy, long battery life, and app-based displays for multiple phones, it streamlines practice timing. Buy it if you need portable, wireless single-gate timing; add an RM-501F finish gate only if you must time two-gate sprints.

Frequently Asked Questions

Can this unit time two-gate sprints?
No. The RM-501 is a one-gate timer for events that start and stop at the same line; add a compatible finish gate for two-gate timing.

How do athletes see the times?
Any phone or tablet running the free app within about 400ft receives and displays the time, and multiple devices can connect simultaneously.

Is the beam safe around eyes?
Yes. The unit uses an eye-safe infrared beam that will not harm human or animal eyes.