BRT LB02G (Upgraded New Version) 2/3/4-wire 0-20mA 0-10V Signal Generator. Max output range: -10V to 10V, 2/3/4-wire 0-22mA sink or source signal. Voltage output can be exactly 0.00V. Output ranges include 0-20mA, 4-20mA, 0-22mA, 0-1V, 0-5V, 0-10V, 0-2.5V, 0-3.3V, -5V to 5V, 1-5V, 2-10V, and are switchable and adjustable. Display modes: actual current/voltage signal value, 0.0-100.0, 0.0-50.0 (Hz), switchable. User can set 9 fast signal output points for convenient debugging. Features battery capacity status indicator and battery voltage display. Supports 24V operating power supply via wiring terminals and 5V from USB port, suitable for indoor or outdoor industrial use. Built-in 1000mAh 3.7V rechargeable battery with automatic charge cutoff when fully charged. Output accuracy is user-calibratable with 0.01V and 0.01mA resolution. LED display shows output signal value accurately. Adjustment steps include fine and coarse modes, switchable. Includes short-circuit protection and reverse polarity protection circuits. Compact, user-friendly design with precise encoder knob for signal adjustment. Default output range is 0-10V and 0-20mA; user can adjust to ranges such as -10V to 10V or 4-20mA. Color: black + gray. Material: plastic. Package includes: 1 x Signal Generator, 1 x USB Cable (random color), 4 x Alligator Clips, 1 x Screwdriver (random color), 1 x English Instruction Manual. Only the listed items are included. Note: Lighting and display differences may cause slight color variation between image and actual item. Measurement error allowance: +/- 1-3cm.