RuuviTag - 4-in-1 - Temperature, Humidity, Motion and Air Pressure SensorAvailable in 3x Versions Standard 4 in 1 (temperature, humidity, air pressure, and motion sensing) Pro 3 in 1 version that is IP67 water resistant version (temperature, humidity and motion sensing) Pro 2 in 1 version that is fully waterproof IP68 and IP69K (temperature and motion sensing) PDF comparison Pairs with a Victron Energy Cerbo GX This product is a great way to add this type of data to your Victron Cerbo GX system. Check out this Victron

it does a much better job of keeping the desired temperature without variances in temperature

Mounts underneath the passenger side slider door (see illustration for details)

Josh's Installation Method

One of the bolt locations has a factory threaded insert (M8)

Note that both F45S and F80S lengths are listed in options below

All non-corrosive marine grade metals

if you want a large capacity tank

Direct port for integration with a Cerbo GX or other GX device

such as a generator or shore power connection

surge up to 2200 watts

Here is a photo gallery of us installing a Maxxfan into a Promaster with these shims

All sales are final on clearance items