Features:<br> High precision and stability.<br> 4 output voltage: 2.5v， 7.5v， 5v， 10v.<br> 4 switch control the reference voltage output.<br> Can use 23A or 27A battery for power supply， portable for use; can also use 2pcs 6F22 batteries for power supply.<br> Adopts multimeter pointed tip as output interface， suitable for probes of handheld meter and desk-top meter.<br> <br> Attention:<br> 1. This is a voltage reference， it can't be used as a current reference.<br> 2. Short circuit of output interfaces is not allowed.<br> 3. The input voltage is 14-20V， please notice the pole.<br> 4. After use， please heat engine for half an hour.<br> <br> Specifications:<br> PCB Color: Yellow / Green (Random)<br> Reference Voltage: 2.5V/7.5V/5V/10V<br> Power Supply: 23A or 27A Battery or 2pcs 6F22 Batteries (NOT included)<br> Input Voltage: 14-20V<br> Item Size: 50 * 33mm / 1.97 * 1.3in<br> Item Weight: 11g / 0.41oz<br> Package Size: 12 * 10 * 1.5cm / 4.72 * 3.94 * 0.59in<br> Package Weight: 14g / 0.5oz<br> <br> Note:<br> The color of PCB is sent randomly， please in kind prevail.<br> <br> Package List:<br> 1 * AD584KH Voltage Reference Module<br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>