Look at this blog post on installation:
https://safiery.com/blog/lowest-installation-costs/
Configuration Guide | SC301 | SC302T | SC25Q | T001 | SC25QT |
| Main Battery | ✔ (internal) | ✔ (internal) | ✔ (internal) | ✔ (internal) | ✔ (internal) |
| Main Battery Shunt | ✔ | ✔ | ✘ | ✘ | ✘ |
| High Current Dedicated Shunt (like inverter) | ✔ | ✔ | ✘ | ✘ | ✘ |
| Second Starter Battery | ✔ Voltage for U1 or U2 | ✔ Voltage for U1 or U2 | ✘ | ✔ Voltage for U1, U2 or U3 | ✔ Voltage for U1, U2 or U3 |
| Tank with Voltage sensor | ✔ Voltage for U1 or U2 | ✔ Voltage for U1 or U2 | ✘ | ✔ Voltage for U1, U2 or U3 | ✔ Voltage for U1, U2 or U3 |
| Pressure Sensor | ✔ Voltage for U1 or U2 | ✔ Voltage for U1 or U2 | ✘ | ✔ Voltage for U1, U2 or U3 | ✔ Voltage for U1, U2 or U3 |
| AC Current Sensor | ✔ Voltage for U1 or U2 | ✔ Voltage for U1 or U2 | ✘ | ✔ Voltage for U1, U2 or U3 | ✔ Voltage for U1, U2 or U3 |
Cabin Air Quality | ✔ Voltage for U1 or U2 | ✔ Voltage for U1 or U2 | ✘ | ✔ Voltage for U1, U2 or U3 | ✔ Voltage for U1, U2 or U3 |
| Solar Performance Sensor (not solar measurement) | ✔ Voltage for U1 or U2 | ✔ Voltage for U1 or U2 | ✘ | ✔ Voltage for U1, U2 or U3 | ✔ Voltage for U1, U2 or U3 |
| Pitch (Forward and Backwards) | ✔ Voltage for U1 or U2 | ✔ Voltage for U1 or U2 | ✘ | ✔ Voltage for U1, U2 or U3 | ✔ Voltage for U1, U2 or U3 |
| Roll (Sideways) | ✔ Voltage for U1 or U2 | ✔ Voltage for U1 or U2 | ✘ | ✔ Voltage for U1, U2 or U3 | ✔ Voltage for U1, U2 or U3 |
| Current Measurement to 25A per channel (combine channels for greater than 25A circuit) | ✘ | ✘ | Up to 4 C1, C2, C3, C4 | ✘ | Up to 4 C1, C2, C3, C4 |
| Tank Measurement Ultrasonic with Resistance input | ✘ | ✔ Resistance for R1 or R2 | ✘ | ✔ Resistance for R1, R2, R3, R4 | ✔ Resistance for R1, R2, R3, R4 |
| Temperature Measurement (resistance) | ✘ | ✔ Resistance for R1 or R2 | ✘ | ✔ Resistance for R1, R2, R3, R4 | ✔ Resistance for R1, R2, R3, R4 |
| Battery Temperature | Included |