85mm Tachometer with Hourmeter
- Unit price
- / per
Diameter: 85mm
Type: tachometer with integrated LCD hour meter
RPM range: 0-4000 or 0-8000 (0-3000 on special order, min 25)
Signal source: W terminal or inductive sensor
Signal type: 2- and 4-cycle; square or sine wave
Power: 12V or 24V (24V via dropping resistor or voltage regulator)
Backlight: red or amber
Waterproof rating: IP67
Face: black or white
Bezel: black or white plastic, or 316 stainless
An 85mm rev counter with a built-in LCD hour meter, so you can read engine speed and track total running hours from one gauge. Stocked in 0–4000 and 0–8000 RPM versions; a 0–3000 RPM version is available as a special order (minimum 25 units — ask us).
It takes its signal from a W terminal (alternator) or an inductive sensor, and handles both 2- and 4-cycle engines and square- or sine-wave signals — so it works with most petrol and diesel set-ups once the signal source and pulses-per-rev are set correctly. Because that varies from engine to engine, it's worth reading the tachometer setup guide and the tachometer FAQs before fitting, or having it wired by someone familiar with engine instrumentation.
- 85mm (3⅜") tachometer with integrated LCD hour meter
- 0–4000 or 0–8000 RPM (0–3000 on special order, min 25)
- Signal from a W terminal or inductive sensor
- Works with 2- and 4-cycle engines, square or sine-wave signals
- 12V or 24V (24V via dropping resistor or voltage regulator)
- IP67 — sealed against dust and water
- Red or amber backlight, wire-selectable
- Choice of white or black face, with a stainless, white or black bezel
Running 24V? Use a dropping resistor, or feed the dashboard from a voltage regulator → for a steadier supply. Browse all gauges and displays →.
The gauge has a 5-pin connector:
Blue — 12V negative (ground)
Red — 12V positive (fused, via the ignition or a separate switch)
Black — signal source: the alternator W-terminal, or an inductive sensor
Orange — red backlight
Yellow — amber backlight
Connect either the Orange or the Yellow wire for backlighting — the wire colour matches the backlight colour. The backlight is dimmable. The gauge runs on a 12V or 24V supply directly.
1. Cut an 85mm diameter hole in the panel. You will need a minimum clearance of 55mm behind the panel to fit the gauge. The panel can be 1–20mm thick.
2. Remove the fastening ring, insert the gauge through the panel from the front, then fit and tighten the fastening ring from the rear.
3. Connect the wiring as shown in the wiring diagram, selecting either the Orange or Yellow wire for your preferred backlight colour.
4. Securely connect the plug into the port at the back of the gauge.
5. Calibrate the gauge to your engine's speed ratio — see the tachometer wiring & installation page and the tachometer FAQs for the full procedure.
85mm Tachometer with Hourmeter
- Unit price
- / per
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Diameter: 85mm
Type: tachometer with integrated LCD hour meter
RPM range: 0-4000 or 0-8000 (0-3000 on special order, min 25)
Signal source: W terminal or inductive sensor
Signal type: 2- and 4-cycle; square or sine wave
Power: 12V or 24V (24V via dropping resistor or voltage regulator)
Backlight: red or amber
Waterproof rating: IP67
Face: black or white
Bezel: black or white plastic, or 316 stainless
An 85mm rev counter with a built-in LCD hour meter, so you can read engine speed and track total running hours from one gauge. Stocked in 0–4000 and 0–8000 RPM versions; a 0–3000 RPM version is available as a special order (minimum 25 units — ask us).
It takes its signal from a W terminal (alternator) or an inductive sensor, and handles both 2- and 4-cycle engines and square- or sine-wave signals — so it works with most petrol and diesel set-ups once the signal source and pulses-per-rev are set correctly. Because that varies from engine to engine, it's worth reading the tachometer setup guide and the tachometer FAQs before fitting, or having it wired by someone familiar with engine instrumentation.
- 85mm (3⅜") tachometer with integrated LCD hour meter
- 0–4000 or 0–8000 RPM (0–3000 on special order, min 25)
- Signal from a W terminal or inductive sensor
- Works with 2- and 4-cycle engines, square or sine-wave signals
- 12V or 24V (24V via dropping resistor or voltage regulator)
- IP67 — sealed against dust and water
- Red or amber backlight, wire-selectable
- Choice of white or black face, with a stainless, white or black bezel
Running 24V? Use a dropping resistor, or feed the dashboard from a voltage regulator → for a steadier supply. Browse all gauges and displays →.
The gauge has a 5-pin connector:
Blue — 12V negative (ground)
Red — 12V positive (fused, via the ignition or a separate switch)
Black — signal source: the alternator W-terminal, or an inductive sensor
Orange — red backlight
Yellow — amber backlight
Connect either the Orange or the Yellow wire for backlighting — the wire colour matches the backlight colour. The backlight is dimmable. The gauge runs on a 12V or 24V supply directly.
1. Cut an 85mm diameter hole in the panel. You will need a minimum clearance of 55mm behind the panel to fit the gauge. The panel can be 1–20mm thick.
2. Remove the fastening ring, insert the gauge through the panel from the front, then fit and tighten the fastening ring from the rear.
3. Connect the wiring as shown in the wiring diagram, selecting either the Orange or Yellow wire for your preferred backlight colour.
4. Securely connect the plug into the port at the back of the gauge.
5. Calibrate the gauge to your engine's speed ratio — see the tachometer wiring & installation page and the tachometer FAQs for the full procedure.