This is the second time I've ordered one of these. I needed to monitor some stiff on my chinese mini excavator.The first one arrived dead. Tried multiple batteries. No response from the main display.Took a month to receive a replacement. Install was straight forward. The included velcro mount is adequate and perfect for my use.I ended up using the oil temp sensor to monitor hydraulic oil temp. No issues. Setting the spark pulse for my engine was easily described in the instructions.The battery life is poor. On my original unit, I was averaging 3 months per battery. We'll see if this one is any better.

Come tutti i contagiri induttivi il regime di rotazione non è aggiornato in tempo reale ma c'è un piccolissimo ritardo che se non sai che esiste nemmeno te ne accorgi. Avrei preferito trovare una batteria ricaricabile anziché una a pastiglia CR2032. Nel complesso molto soddisfatto.

Habe bei der Bestellung nicht darauf geachtet, leider ohne 12v Anschluss sonst ok.

Habe das Ding auf einen 3 Zylinder Außenborder funktioniert tadellos

Prodotto scadente, batteria che si esaurisce in fretta a meno che non viene tolta, il contagiri completamente svasato...

In 3 weeks, I have installed 4 batteries in this unit and they all fail or come close to failing within a few hours. The culprit is the backlighting. It defaults to ON and by the time it takes to scrolls through the menu options and turn the backlighting OFF the battery is already showing 30-40% down. I have not installed this unit, simply left it running on my desk to monitor the room temperature and the clock (they are both reasonably accurate).It would appear that the battery for this unit is inadequate for the purpose. A much, much more powerful battery is required.I am returning this unit.

This review is for the Runleader RL-HM0354-M5 multifunction meter. I bought this particular style because it comes with a mounting base that fits to a round bar - perfect for attaching to one of the mower control arms.I installed this in my Toro Timecutter 50 in model 75759 with Kawasaki 23 HP engine. It is a huge improvement over the very limited and basic Toro factory hour meter, but will not fit in the factory panel location without messy modification. However, it was very easy to attach this to one of the control arms. It should be easy to mount on many different machines. This Runleader unit will measure engine runtime anytime the engine is running, whether or not you are sitting in the seat, because it is triggered by sensing pulses from one of the spark plugs. It can be programmed with starting runtime hours in case you are replacing an older hour meter and want to preserve the total cumulative engine run time from a previous installation for instance. It can be programmed with countdown service interval timers to remind you when to change the oil and filter.The Runleader meter has a replaceable, common CR2032 coin cell battery, which is a real plus but unfortunately, you have to unmount it to get to the underneath of the display to change the battery! I knocked off one star for inconvenience there. The meter comes with some double-sided tape if you just want to slap it on a flat surface but this makes battery replacement extremely messy so I don't recommend that method of attachment.By comparison, the Toro brand factory hour meter is not resettable, does not measure anything except runtime, does not have a replaceable battery, and only measures runtime when you're actually sitting in the seat. It will not measure runtime if you leave the engine idling and get out of the seat for example, because it plugs into a factory harness that senses the seat interlock to start the timing.INSTALLATIONI have some annotated photos from my installation that should be very helpful to others.I had to drill a large hole in the plastic fairing adjacent to the right hand spark plug in order to put the temperature sensor ring terminal underneath the spark plug and route the temp sensor wire with connector to the outside of the fairing. The hole size is just large enough for the connector on the wire to pass through from the inside. The ring terminal itself is much larger and cannot be bent to allow the wire to come out parallel with the plug so don't try that. The rest of the installation was very straightforward. For the runtime and RPM sensor wire, I used five wraps around the right hand spark plug wire and secured them with the supplied tie wrap as shown in the photo. I routed the wires along the inside of the mower frame with one zip tie through an unused hole in the plastic body, and protected the wires using nylon spiral harness wrap for a very neat installation. There was some excess length in some of the wires so I folded them before wrapping. I zip tied the meter to the right hand inside control arm of the mower. I push the control arms out to park the mower to make readings and this works just fine.PROGRAMMINGTo save battery life, program the backlight to be off. After shutting down the engine, you also need to turn off the unit manually by pressing and holding both the m and s buttons simultaneously.RPM range should be set to 'r4' (0 - 6,000 RPM) for this Kawasaki engine, and the RPM pickup needs to be programmed to '1P1R' (1 pulse per rotation). This calibrated the RPM beautifully and exactly matched and external laser tachometer that I borrowed from my friend to verify the speed.As a matter of fact, once I installed this meter, I became aware that the factory throttle cable arm and linkage was not allowing for the full range of throttle control without some modification and adjustment. As it was delivered, it was only making about 3100 RPM on the meter. Once I got things adjusted and could make the full 3600 RPM that the Kawasaki engine is rated for, performance improved significantly, especially top mowing speed.I programmed the high temperature alarm to be 276° f, which seems to be above the highest operating temperature I encountered in the summer. Be aware that if you set this too low, the alarm will keep coming on and flashing the backlight wasting battery power even if you have backlight turned off.I set the RPM alarm speed to 3675 to alert me to any possible over revving while accounting for slight bumps when first hitting the throttle while the governor kicks in.I've used this meter for about 2 months on my new mower and I'm delighted with it so far. Hope you find the photos very useful.

Funktioniert und macht das was es soll.Habe die Ausführung mit Drehzahl und Temperaturmessung.Drehzahl und Temperatur habe ich mit einem kalibrierten Messgerät überprüft, liegt in einem brauchbaren Toleranzband.