GREMLIN Monitor
$300 one-time purchase
The monitor is yours to keep. You own the equipment outright from day one.

Heating Oil Tank Monitoring
A GREMLIN tank monitor measures how much heating oil is left in your tank and shares the reading with you and with NOCO. Check your level and usage from your phone, skip the trip to the basement, and help us plan your next delivery before you run low.
REQUEST A GREMLIN MONITORSee how much heating oil is left in your tank.
Track how much oil you've been using over time.
View an approximate date for your next oil delivery. Applies to Automatic delivery customers only.
Reach NOCO directly from the app when you need us.
No stairs, no squinting at the gauge. Check your tank from anywhere.
Readings are sent over your home Wi-Fi or a 4G LTE connection, depending on the model.
A NOCO technician fits the monitor into an available opening on your above-ground heating oil tank. Installation typically takes less than 10 minutes.
Using ultrasonic technology, similar to sonar, the monitor bounces a sound signal off the surface of the oil to determine how much is left.
The reading is sent wirelessly over Wi-Fi or a cellular connection, depending on your model, generally once a day.
You see your level in the app, and our team uses the same readings to spot tanks that need oil and schedule deliveries more efficiently. Applies to Automatic delivery customers only.

A small device on your tank makes a big difference in how you manage your heating oil, and how well we can plan for you.
Daily readings help us see when your tank is getting low so we can plan a delivery before you run out. Applies to Automatic delivery customers only.
Knowing how much oil you have makes it easier to plan ahead and head into heating season with confidence.
Especially helpful if basement stairs, reaching your tank, or reading a traditional gauge is a challenge.
Battery powered and designed to run for years, backed by a two-year manufacturer warranty.
Buy your GREMLIN monitor once, then keep it connected with a low annual service charge.
$300 one-time purchase
The monitor is yours to keep. You own the equipment outright from day one.
$69.99 / year, plus tax
A low annual service charge, billed once a year in addition to the one-time purchase of your monitor.
No strings attached. If you ever switch to another fuel company, your GREMLIN monitor is still yours to keep, and we'll cancel the annual service charge immediately.
Prices shown before applicable sales tax.

GREMLIN gives you and our team a clear view of your oil level. It's a monitoring tool, not automatic delivery or a guarantee your tank can never run empty, so here's what to keep in mind.
Fill out the form and a NOCO representative will reach out to go over the rental and purchase options and schedule your installation.