iButton Data collector/reader L812, Stainless steel shell, durable, waterproof, shockproof, ... Tour Checking (Short wand)Model: L812Memory:2,000 records/8,000 recordsSize: 120*24.5 mmWeight: 180gPower ... , durable, waterproof, shockproof, antimagnetic, anti-disassemble. With genuine leather cup to protect the wand Working principle: ... bank, bus transfer and so on. iButton reader with 8000 records memory