There are two main types of coolant level probes: float-type and reed switch-type. Float-type probes have a float that rises and falls with the coolant level. When the coolant level is low, the float drops and triggers a switch, which sends a signal to the vehicle’s computer or other control unit. Reed switch-type probes have a reed switch that is activated by a magnet. When the coolant level is low, the magnet in the float activates the reed switch, which sends a signal to the vehicle’s computer or other control unit.
3-wire coolant level probes are more accurate and reliable than 2-wire coolant level probes. This is because 3-wire probes have a dedicated signal wire, which reduces the possibility of noise or interference affecting the signal.
3-wire coolant level probes are commonly used in a variety of vehicles and engines, including cars, trucks, buses, and construction equipment. They are also used in some industrial applications.
Here are some of the benefits of using a 3-wire coolant level probe:
- More accurate and reliable coolant level readings
- Reduced risk of noise or interference affecting the signal
- Compatible with a wider range of vehicles and engines
- Easy to install and maintain