ALT57 is a compact digital altimeter that fits in a standard 2 1/4” panel cutout and permits to install a precise and versatile altimeter also in instruments panel with small space available. It’s simply to use, with user-configurable units, altimeter alert function, sensor calibration function, all in much more compact and light instrument than traditional altimeters.

Main features:

• Wide 4-digit LCD with coated screen
• Units settable in feet or meters
• Barometric reference settable in inHg or hPa (mBAR)
• Altitude alert
• Alarm out for altitude alert
• Solid-state pressure sensor

Technical specifications:

• Standard mounting 2 1/4” (57mm)
• Anodized aluminium case
• Dimensions: 60 x 60 x 40.5 mm
• Weight: 130 g
• Operational temperature range: -20~+70°C
• Supply voltage: 10 to 30 V=, 50 mA
• Altimeter range: -1000 ~ +20000 ft
• Altimeter resolution: 10 ft