52mm Water Temperature Gauge
| Type | analogue water/coolant temperature gauge |
|---|---|
| Range | 40-120°C (450-23 ohm) |
| Size | 52mm |
| Power | 12V or 24V |
| Waterproof rating | IP65 |
| Works with | Wema temperature sensors |
| Face | black or white |
| Bezel | black or white plastic, or 316 stainless |
An analogue water (coolant) temperature gauge for keeping an eye on engine temperature and catching overheating early. It reads 40–120°C and works with Wema temperature sensors (450–23 ohms).
- 52mm gauge
- Range: 40–120°C (450–23 ohm sensor)
- 12V or 24V
- IP65
- Face: black or white; bezel: stainless, black or white
Pair it with the matching Wema temperature sensor so the range and resistance line up. If a temperature gauge is reading oddly, our guide on how to test an analogue resistance gauge → walks through the checks. Browse all temperature gauges →.
| Type | analogue water/coolant temperature gauge |
|---|---|
| Range | 40-120°C (450-23 ohm) |
| Size | 52mm |
| Power | 12V or 24V |
| Waterproof rating | IP65 |
| Works with | Wema temperature sensors |
| Face | black or white |
| Bezel | black or white plastic, or 316 stainless |
An analogue water (coolant) temperature gauge for keeping an eye on engine temperature and catching overheating early. It reads 40–120°C and works with Wema temperature sensors (450–23 ohms).
- 52mm gauge
- Range: 40–120°C (450–23 ohm sensor)
- 12V or 24V
- IP65
- Face: black or white; bezel: stainless, black or white
Pair it with the matching Wema temperature sensor so the range and resistance line up. If a temperature gauge is reading oddly, our guide on how to test an analogue resistance gauge → walks through the checks. Browse all temperature gauges →.
Fitting on 12V or 24V — and why a voltage regulator helps
A 12V system is never a steady 12V: it sags under load, rises to 14V or more on charge, and spikes as things switch on and off. The gauge sees all of it, so readings can wander with the state of the electrics rather than with what you’re measuring. A voltage regulator delivers a clean, steady voltage whatever the supply is doing — so the gauge reads consistently, the backlight stays even, and sensitive electronics are protected from spikes.
On a 24V system a dropping resistor is supplied to suit the gauge, but a regulator is the better option: resistors run hot, waste power and add a failure point at each gauge, whereas one regulator feeds the whole dashboard from a single clean supply (the 3A model runs up to 20 standard 52mm gauges, the 5A up to 38).
Why voltage regulators matter → · Browse voltage regulators →