Adept's A1-TA is a Maximum Altitude Altimeter that measures and reports the highest above-ground altitude obtained during a rocket’s flight. The A1 is very small and light weight. It was designed specially for use in contest rockets, for use in schools in science and math studies, or for use in small diameter rockets or darts. The A1-TA is used in rockets that will reach at least 150 feet altitude. These altimeters may be used in any rocket configuration including multistage rockets, in which case maximum altitude information about a particular stage can be obtained by placing the device in the particular stage of interest. The A1 captures the highest altitude obtained during a flight to a maximum of 15,000 feet above local ground, limited to 12,000 feet above sea level. The maximum value obtained above the local ground-zero altitude is precisely measured and reported in one-foot increments. In order to measure the maximum altitude achieved by your rocket, the A1 uses a custom absolute pressure device to measure and report altitude values. It uses a 18-bit logarithmic analog-to-digital converter to measure the pressure versus altitude relationship over the altitude range. Once powered up, the A1 constantly measures the ground-level altitude and waits for a quick change upward. It then captures the maximum altitude obtained (above ground zero), then begins to report the maximum altitude value. The value is "beeped' out as a series of counts that can be heard easily, even when the unit is still inside the rocket. The A1 is a totally stand-alone device including the battery holder and arming mechanism. Nothing more is required, even the battery is included! Specifications: - Dimensions: .55" W x .62" H x 2.9" L (fits in BT-20) - Weight: 0.50 Oz. (14.2 gr.) with battery - Battery: 12-volt GP23A Alkaline Battery (included) - Battery Life: 10+ hours Adept Rocketry The Gold Standard in Rocket Electronics.(tm) |