... very popular product on the market. Small-sized, durability, and low power consumption are its biggest advantages. With unique ... items, locations, and activities. With a simple touch, the WM-5000E2 reader reads touch memory buttons, which are memory chips housed in ... 140gOperating Temperature -45° to +85°CStorage Capacity 7200 touch memory button readsBattery 3.0 V Lithium battery, long life ...