Garrett Metal Detectors Metal Detector GTI 1500 - Manual (Page 80)

Battery Life: (Approximate)
Alkaline: 25 hrs.
Carbon Zinc: 18 hrs.
NiMH: 20 hrs.
Humidity: 0 to 95% Non-condensing
Temperatures:
Operating: 0˚ to 10˚F.
Storage: -20˚ to 150˚F.
Construction:
High strength glass-filled nylon with han-
dle-mounted control/display panel.
Weight: (With 9 1/2-inch searchcoil) 
lbs., 2 ozs.
80 - Garrett Metal Detectors