Quantity: one piece Error range: 0-20 grams Product size: length 8 cm x width 5 cm x height 2 cm Product weight: 92 grams Product accessories: 1 portable scale, 2 AA batteries, 1 manual Product material: ABS plastic shell + stainless steel hook + special high-strength nylon handle. Maximum load: 40 kg, the division value is 10 g, for example: 20.11 kg, 20.12 kg, 20.13 kg, etc. Weighing unit: kg (kg), lb (pound), catty, oz (ounce) four units (1kg=2 jin=2.2lb=35.3oz) Key description: 1. POWER: Power on/off key: Press this key to turn on/off 2. UNIT: Unit conversion key: Press this key to convert the unit between kg, lb, jin and oz 3. TARE: tare key/zero key/num lock key: Press this key to reset the reading to zero Instructions for use: 1. Open the back cover, install the battery correctly, press the "POWER" button, the display will show "8888" for 2 seconds, and then turn on the machine. At this time, the display will show 0.00 kg by default; 2. Press the "UNIT" key to switch the weighing unit between kg, lb, jin and oz, and select the weighing unit you want to use; 3. Hang the item on the hook and hold the handle with your hand (note: you cannot hold the scale body for weighing, which will increase the error), keep the hand-held scale vertical and stable, and when the red indicator light is on, the scale After the measurement is completed, the value displayed on the screen is the weight of the item; 4. In the weighing state, press and hold the "TARE" key for 2 seconds, the screen displays "L_on" to indicate that the lock function is turned on; press and hold the "TARE" key for 2 seconds, the screen displays "L_OF" to indicate that the lock function is turned off, suitable for continuous and rapid weighing; Features: 1. Large LCD screen (3x2 cm), the digital display is clearer and can better protect your eyes; 2. The unique energy-saving and power-reducing design of this product can effectively reduce power consumption, and only 2 AAA batteries can achieve the effect of 3 batteries of similar products; 3. This product adopts a new nano nylon handle with a maximum tensile strength of 60 kg, which is strong and durable. 4. The product is compact and fashionable, smaller than ordinary mobile phones and easy to carry. It is a product for traveling, fishing, grocery shopping, shopping, etc. Good quality product