Trumsense®'s products are exported to above 45 countries, whose sensors have been integrated into more than 6,000 projects worldwide. It is in an absolute international leading position in various fields.
The WS02 and WS03 series of non-contact liquid level sensors manufactured by Trumsense feature an NPN normally open output:
1: When water is present, the output is low;
2: When water is absent, the output is high.
