Ran out of fuel
People find out the tank is empty when the house goes dark. Now you get a warning in advance, with an estimate of how many hours are left.
Generator · monitoring
Your generator, under control
How much fuel is left, whether the generator started and when an oil change is due — as Telegram messages, even when you are away from home.
My generatorbot · online
Power went out. The house is on battery at 64%. The generator will start when the charge drops to 30%.
Generator started. 229 V, 18 L of 24 in the tank — enough for about 7 h.
Low fuel: 7 L (29%). At the current load, about 2.5 h left.
Generator did not start: the start command was sent but there has been no output voltage for 3 min. Check the fuel and the starter battery — 11.6 V.
Oil change due: 100 run hours since the last service. Book a service visit?
Why
Night Frost Service
Three situations we take off your plate
Failed to start
The starter battery goes flat and the auto-start fails. We warn you when the battery voltage drops below normal and tell you right away if the generator gives no voltage after a start command.
Forgot the oil change
Nobody counts run hours, so the engine wears out faster. The system counts them and reminds you about servicing.
What we monitor
Everything about your generator in one chat
Fuel
Tank level
Litres and percent, roughly how many hours are left at the current load, and a low-level warning.
Generator
Running or not
Start, stop, no voltage after a start command, run hours until service.
Grid and battery
With a hybrid inverter
Grid lost and restored, battery charge — read directly from the inverter over RS485.
Voltage and power
Proof it is actually producing power
A separate meter on the generator output: voltage, load in percent and an overload warning.
Enclosure
Temperature by the generator
Overheating in summer and frost in winter where the generator stands.
Starter battery
Voltage before a start
We warn you when the battery voltage drops below normal. This needs a thin fused wire to its terminals.
Fuel sensor
Fuel level sensor outside the generator tank
The ultrasonic sensor attaches with a magnet to a steel tank bottom. No drilling, no contact with the fuel, and no changes to the generator’s design.
We place the sensor on a flat, accessible part of the steel bottom — no ribs, seams or double walls — with coupling paste between the sensor and the tank. Ultrasound cannot see the bottom ≈5 cm of fuel, so the low-fuel alert is set with a margin. The sensor works from −15 °C, so an outdoor generator needs an insulated enclosure in winter. Water and sediment at the bottom, engine vibration and foam after refuelling cause errors, so readings are averaged. If the bottom is not accessible or the tank is plastic, we fit a float or capacitive sensor through the filler neck.
Run hours and service
Servicing on schedule, not from memory
Counter
Run hours are counted automatically
The controller sees when the generator produces voltage and keeps a counter. It may differ slightly from the generator’s own hour meter.
Reminders
Oil, filters, spark plugs (petrol)
We set the intervals to your generator manufacturer’s schedule. The reminder goes to you and to us, so our service team arrives on time.
History
Run log
How long the generator ran during each outage and how much fuel it used.
How we connect it
Three steps to peace of mind
- 1
Visit or photos
Generator, tank and distribution board — we size the kit to your setup.
- 2
Installation and calibration
Controller in the board, sensors, inverter connection, tank calibration.
- 3
Telegram alerts
To you and to us, so our service team arrives on time. We put the router on backup power or fit a 4G module in the controller, otherwise alerts arrive only once the connection is back.
A site visit costs from 1,500 UAH in Kyiv and from 2,000 UAH in Kyiv Oblast; this amount is credited towards the job.
Generator monitoring FAQ
How are generator run hours counted?
The controller counts the time the generator output has voltage and reminds you about servicing on the manufacturer’s schedule. The reading may differ slightly from the generator’s own hour meter.
Does it work without a hybrid inverter?
Yes. Fuel, run hours, generator voltage and load come from our own controller and a meter on the generator output. An inverter only adds grid and battery data.
Do you modify the generator?
Minimally. The fuel sensor sits outside the tank, the meter is in the board and temperature is measured in the enclosure. We only run a thin fused wire from the starter battery terminals and, for auto-start, a wire to the remote start input if there is one. Recoil-start generators without a battery are monitored without these two functions.
Which tanks suit the ultrasonic sensor?
Steel tanks with a 0.6–5 mm wall and a flat, accessible bottom. For a plastic tank or one without access to the bottom we fit a float or capacitive sensor.
What if there is no internet during an outage?
The controller runs on backup power, keeps counting fuel and run hours, stores important events and sends the alerts as soon as the connection is back. To get alerts right away we put the router on backup power; if the provider goes down too, we fit a 4G module in the controller.
How much does it cost?
It depends on the generator, the tank and whether you have an inverter. We give a preliminary price from photos. A site visit costs from 1,500 UAH in Kyiv and from 2,000 UAH in Kyiv Oblast; this amount is credited towards the job.
Contact
Tell us what needs doing and we'll get back to you during business hours
Send a request
Tell us about the job in a short form — from replacing a smart relay to a full rewire. We'll send a preliminary estimate within a day.