Size: 88 mm × 58 mm × 9 mm / 3.46" x 2.28" x 0.39". Display Type: Reflective Positive FSTN. Sound: 4 kHz resonance frequency Piezo-electric buzzer. Battery Life: Up to 5 years. Battery Type: 1 × CR2032 lithium coin cell, 3.0 volts.
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