High accuracy 0.025%+1/2 digits, high reliability and stability. Have full-function operating mode, user can enter any value through digits buttons, the calibrator can output signal directly. 2200mAH re-chargeable battery inside, very suitable and convenient to use it in applications indoors or outside industrial site. Signal output & simulation: 0-10KHz frequency, 4-20mA source or passive signal, 0-11V, 0-110mV, 20-400, standard R, E, S, K, J, B, T, N type thermocouple, PT100, PT1000, CU50, 24V outputs, etc. Measurement ranges: 0-10KHz frequency, 0-30V, 0-150mV, 0-999.9, standard R, E, S, K, J, B, T, N type thermocouple, PT100, CU50, 24V, 0-24mA, etc. High resolution color LCD display, have back light for different lighting conditions, large screen clear display. Fast response, no delay in signal source simulation and signal testing or measurement. Have battery charging and status bar. User can check the battery status easily. Can be used as signal generator, frequency calibrator, multifunction process calibrator and digital multimeter. Have description in Hz, V, mV, mA, RTD, TC, Step, and keys, it enables user to operate it easily. Frequency signal, DC voltage, mV small signal, resistance signal, dc current, thermocouple, RTD thermal resistance signal output and measurement, it equals to a process calibrator and digital multimeter. AD, DA, reference voltage, OP circuits are used to all high accuracy, high performance and high stability Colour:As Shown Material:plastic Package Contents: 1 x LB02A Process Calibrator Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.