Amprobe UDM45 Ultrasonic-Distance-Meter - Manual (Page 9)

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Automatic power off: 30 seconds.
working temperature: 0°C to 40°C (32°f to 104°f)
Dimensions (h-p-l): 133 x 67 x 45 mm (5.2 x 2.6 x 1.8 in.)
weight (without battery): 88g (0.2 lb.)
 laser: en 60825-1:1994+A1+A2 Class 2
EMC: en 61326-1:2006 This product complies with requirements of the following european
Community Directives: 2004/108/eC (electromagnetic Compatibility) and 2006/95/eC (low
Voltage) as amended by 93/68/eeC (Ce Marking). however, electrical noise or intense
electromagnetic fields in the vicinity of the equipment may disturb the measurement circuit.
Measuring instruments will also respond to unwanted signals that may be present within the
measurement circuit. Users should exercise care and take appropriate precautions to avoid
misleading results when making measurements in the presence of electronic interference.
Distance
Unit of measure:
Meter or foot/inch
Range: 0.5 to 15m (1' 09" to 49')
Accuracy: ±(0.5% Rdg + 0.08 m (3 in.))
Test frequency: 40 khz (ultrasonic pickup)