Anton APM 145 differential pressure meter features, wireless data transfer to the Sprint mobile app, infrared port for data printing, saved test logs for timed let-by/stabilisation, tightness, flue draught, working and operating pressures, standard spigot connections, backlit hi-res colour display, push button zero, auto power off and rubber boot with built-in magnet, and tilt stand/hanging hook. 3 x AA alkaline batteries supplied.