Specification: - Name: Tachometer - Backlight: 7 Colors - High Precision - Size: 85mm - Signal: Pulse - Working Voltage: 9-32VDC - Working Current: Not specified - Backlight: 7 Color backlight - Engine Hours: 0.0-99999.9H - Working Temperature: -30°C to 70°C - Storage Temperature: -40°C to 85°C - Waterproof and Dustproof Rating: IP67 - Functions: Current Tachometer/RPM and Hour Meter - Operation Mode: LCD Display, Stepper Motor - Compatible with: Car, Truck, Boat, Diesel Generator Engine, Gasoline Engine Features: - Waterproof Rating: IP67 - Excellent anti-fogging performance - Curved glass with anti-fog function - 316 Stainless steel bezel with curved glass - Easy installation via multi-plug socket connection - Backlight colors: Red, Yellow, Orange, Green, Blue, Purple, White; adjustable by user - Tachometer compatible with Car, Truck, Boat, Diesel Generator Engine, Gasoline Engine Package Included: 1 x Boat Tachometer 1 x Cable 1 x Installation Sensor Tachometer Gauge Sensor Specifications: 1. Name: Tachometer Gauge Sensor 2. Used for Gear Rotation Speed Measurement 3. Features stable signal, wide operating temperature range, compact size, and simple assembly 4. Signal Duty Factor: 47±5% 5. Output Signal: Sine Wave 6. Operating Temperature: -40°C to 85°C 7. Inductance Distance: Less than 1mm 8. Tooth Module: 2–6 9. Connection Type: Two-wire 10. Protection Rating: Waterproof IP67 Note: Two sensor models available: - 78.2mm x 18mm (L x W) - 78.2mm x 16mm (L x W) Package Included: 1 x Tachometer Gauge Sensor