Description

The Hayoda (Japan) Oil Temperature Gauge KBO-TR (150°C, 6 m, 4-switch, 4–20 mA) is an enhanced version of the Hayoda KBO gauge, adding a 4–20 mA analogue current output for SCADA integration alongside four microswitch contacts. The 4–20 mA signal allows continuous temperature monitoring in digital control systems without the need for additional transmitters. It is used on modern transformer installations requiring full remote monitoring.