The HLA liquid level alarm series from See Water is designed to warn of potentially threatening liquid level conditions. The UL-listed series includes the HLA type 1 (indoor rated) liquid level alarm, the HLA-4X liquid level indoor/outdoor robust alarm, and the HLA-4X-X (models monitoring two to 10 liquid level alarm points). Applications include tank monitoring, sewage pump chambers, sump pump basins, lift stations and other liquid level monitoring. 888/733-9283; www.seewaterinc.com.