KUS Marine Oil Temperature Sensor / Transmitter Type 3 – Precise Measurement for Engine & Transmission Oil with 120°C Alarm
Effectively protect your valuable powertrain from thermal overload! The original KUS oil temperature sensor (Type 3) continuously measures the exact heat build-up in your engine oil or transmission lubrication system. It converts the temperature values into the standardized analog resistance range of 300 to 23 ohms. This makes it the perfect, reliable sensor partner for all analog and digital KUS oil temperature gauges (50–150°C) at the helm.
What sets the advanced Type 3 model apart is that the sensor features an integrated, separate warning contact (alarm switch). As soon as the oil reaches the critical threshold of 120°C, the contact closes automatically. This allows you to activate a separate red warning light or an acoustic KUS warning buzzer in the cockpit—in addition to the temperature gauge—to prevent an impending loss of the lubricating film in a timely manner.
⚠️ Important note on sensor compatibility & thread selection:
This temperature sensor provides the standard KUS characteristic curve of approximately 300 ohms at 50°C to 23 ohms at 150°C. Please select the exact thread size for your engine block or marine transmission from the drop-down menu above:
- M14 x 1.5 thread (metric fine-pitch thread, integrated 120°C alarm)
- Thread M16 x 1.5 (metric fine thread, built-in 120°C alarm)
- 3/8" - 18 NPT (American tapered pipe thread, built-in 120°C alarm)
Advantages & Technical Highlights at a Glance:
- Integrated 120°C warning contact: Maximum motor protection through simultaneous analog measurement and visual/audible alarm triggering (2-pin connection).
- Robust brass housing: Excellent thermal conductivity for extremely fast response times during sudden temperature spikes, as well as absolute resistance to aggressive, hot oils and chemicals.
- Fully encapsulated IP67 protection class: The sensor head and connection contacts are completely dust- and watertight—optimally protected against splashing water, oil, and bilge moisture.
- Universal marine use: Fully compatible with all engine oils, transmission oils, shaft lubricants, and hydraulic fluids in 12-volt and 24-volt onboard systems.
🛠️ Accessory tip from Tenten-Boats:
Don’t forget the right gauge! Order the visually perfectly matched, saltwater-resistant KUS analog oil temperature gauge (52 mm) right along with it to ensure seamless lubricant monitoring in your cockpit.
Technical Data (Specifications):
| Property | Specification / Value |
|---|---|
| Manufacturer / Brand | KUS |
| Sensor Type | Type 3 (Analog Measurement + Digital Alarm Contact) |
| Output Signal (Resistance) | 300 – 23 ohms Characteristic curve (KUS temperature standard) |
| Measuring Range | +50°C to +150°C |
| Alarm threshold | 120°C ± 3°C (integrated warning contact) |
| Housing Material | High-quality, thermally conductive marine brass |
| Protection rating | IP67 (waterproof and dustproof at the connector head) |
| Item information | Value |
|---|---|
| Manufacturer: | KUS |
| Category: | KUS Instruments |
| SKU: | 33101 |
| Shipping weight: | 0,20 kg |
| Item weight: | 0,10 kg |