Trail Tech 742EH4 TTO Digital Water Temperature Gauge 16mm Radiator Hose Sensor

The Trail Tech 742EH4 TTO Digital Water Temperature Gauge is a compact, surface-mount meter designed to keep you informed of your water-cooled engine's coolant temperature at all times. The included 16mm in-line radiator hose sensor installs directly into your coolant system for accurate, real-time temperature readings without requiring any permanent engine modifications.

Designed and engineered by powersport enthusiasts, the TTO series is Trail Tech's smallest available meter, measuring just 50 x 25 x 14mm, with a backlit LCD display featuring large, easy-to-read digits. The display is clearly visible from virtually any angle or lighting condition, making it ideal for on- and off-road use.

Key Features:

• Current and Maximum Temperature Display — monitors real-time coolant temp and records peak temperature
• Internal Battery — no external wiring or power connection required; rated for approximately 5 years of use
• Compact Ultra-Thin Design — measures 50 x 25 x 14mm; one of the smallest meters available
• Backlit LCD Screen — 24 x 14mm display is legible in all lighting conditions
• Dual Mounting Options — installs via peel-and-stick adhesive or bolt-on mount (screws not included)
• 16mm Radiator Hose Sensor Included — designed for water-cooled engines with 16mm I.D. hose connectors
• Built-In Clock — additional clock function included
• Lightweight Construction — physical weight of only 1.3 oz (39.3 grams)

The Trail Tech 742EH4 is part of the TTO mini maintenance meter lineup, available in black, orange, and red to complement your build. It is a straightforward, wire-free solution for monitoring engine coolant temperature on dirt bikes, ATVs, UTVs, and other water-cooled powersport applications.