SI-TEX SST-110 Sea Temperature Gauge - No Transducer

The SI-TEX SST-110 Sea Temperature Gauge is a waterproof analog instrument purpose-built for saltwater anglers who need reliable surface temperature readings to locate fish and understand water conditions. Unlike transducer-based systems, this no-transducer model offers simplicity and affordability without sacrificing the large, clearly visible display that matters when you're focused on the water ahead of you.

The standout feature is the oversized four-digit LCD display measuring 4.3 inches by 4.3 inches by 3.5 inches—legible from 15 to 20 feet away without needing to leave the helm or crane your neck. This visibility matters during fast-moving conditions or when multiple crew members need quick reference to temperature data. The rugged, water-resistant construction handles the salt-air environment that corrodes lesser instruments, making it a practical choice for serious offshore and inshore operations where equipment must endure repeated washdowns and splashing without degradation.

This gauge suits recreational weekend anglers and professional charter captains alike. Inshore fishermen use sea surface temperature to identify thermoclines and current breaks where redfish, tarpon, and permit concentrate. Offshore crews monitoring temperature changes can adjust trolling depth or location to follow pelagic species or avoid dead zones. The SST-110 delivers the core functionality—accurate temperature sensing in a format that doesn't require external transducers or complex integration, making it ideal for retrofits or secondary temperature monitoring on boats already equipped with electronics.