A1: Factors do affect speed testing
Battery: 1. Low battery. 2. Please use alkaline battery instead of heavy duty battery.
CO2 or gas smoke: In case of too much smoke causing the inaccuracy, please stay your muzzle 10cm away from the shooting hole of chrono when use CO2 airsoft gun shooting
Over measures range: chronograph measures muzzle velocity from 30 m/s ~ 400 m/s (90 ft/s ~ 1200 ft/s)
You can find replacement on product> replacement.
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Please insert USB power, then press and hold power botton for 5 seconds to turn on AC5000. Please follow the instruction shows on LCD.
The condition of "ADC Error 2" would be solved.
Shooting over 10 shots continuously is required, when you do the ROF test.
Acetech chronograph can be used to test with air gun pellet.
Chronograph measures muzzle velocity from 30 m/s ~ 400 m/s (90 ft/s ~ 1200 ft/s)