Usage Tips:1. The meter can be referred to as a universal analog input display meter. It can be used with various sensors with analog output to display the actual physical quantity. Such as temperature transmitters, frequency converters, motor speed, pressure, liquid level, concentration, etc. 2. The instrument supports current input or voltage input. 3. Default adaptation: 0-10V, 2-10V, 0-20mA, 4-20mA. By adjusting the bias and gain parameters, it can be adapted to other inputs within the range of 0-10V or 0-20mA. 4. The default display is in percentage. You can also set your own display range through F0-2 ~ F0-4. 5. The instrument with a 485 interface supports communication between meters, making it convenient to achieve multiple displays. Model options: Standard version: HXDSBOXAH- With RS485: HXDSBOXA-485 With relay output: HXBOXAI-RL Standard version and RS485 version: rated power supply voltage range DC6~25V, power consumption 24V/40mA Relay output version: rated power supply voltage range DC8~25V, power consumption 24V/50mA Power supply with reverse connection protection and surge protection Color: gray Material: plastic Size: 79 x 43 x 25mm Package Contents: 1 x Digital display meter Note: Light and different displays may cause slight color differences between the item in the picture and the actual product. Allowable measurement error is +/- 1-3cm.