ShotTimerMK1

Standard headphone-style mic jack accepts a clip-on lavalier mic, letting you position the sensor right at the muzzle or on your body — not just wherever the box sits.

0.96" OLED with yellow header and blue body. Results come up on five pages — 1ST SHOT (draw time), AVERAGE, SPLITS, TOTALS, and BATTERY — with times in seconds to two decimals and a battery percentage in the corner of every page.

Hold Stop for 2 seconds to set the sound threshold — tap Start to raise it in steps of 10 (0–500, default 150), tap Stop to save. Hold Start for 2 seconds for a live mic test mode. No app, no Bluetooth, no fumbling.

Runs on a 9V USB-C rechargeable lithium battery — about 16 hours per charge, no proprietary cable. A built-in battery gauge shows the percentage left, learns your battery's real capacity, and gives LOW and CHARGE warnings well before it runs out.

Custom-designed two-part enclosure (shell and lid) printed in multi-color PLA+ — tough, impact-resistant, and available in multiple tactical colorways. M2 socket head cap screws for clean, secure assembly.

Records up to 60 shots per string, and your last string is saved through power-off — tap Stop at power-on to bring it back. Echoes and ringing steel under 0.10 s after a shot are ignored.

Full status indicator — solid white during the random 3–8 second wait after pressing Start, blinks while the clock runs and it's listening for shots, then turns off when you press Stop. Also stays solid in test mode and the threshold screen. Bright enough to illuminate your bag when digging for gear.

Latching power button lights up blue the moment the timer is on — clear status at a glance, even in bright daylight. The enclosure has a raised guard structure around the button to keep it from getting bumped on in your range bag or pocket. Press once to power on, depress to power off.