Senso4s PLUS Digital Gas Cylinder Monitor image 1 Senso4s PLUS Digital Gas Cylinder Monitor image 2 Senso4s PLUS Digital Gas Cylinder Monitor image 3 Senso4s PLUS Digital Gas Cylinder Monitor image 4 Senso4s PLUS Digital Gas Cylinder Monitor image 5 Senso4s PLUS Digital Gas Cylinder Monitor image 6 Senso4s PLUS Digital Gas Cylinder Monitor image 7 Senso4s PLUS Digital Gas Cylinder Monitor image 8 Senso4s PLUS Digital Gas Cylinder Monitor image 9 Senso4s PLUS Digital Gas Cylinder Monitor image 10

Senso4s PLUS Digital Gas Cylinder Monitor

£79.99(inc VAT) £89.99
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  Product Description
The Senso4s PLUS is a precision digital gas cylinder monitor designed specifically for motorhomes, caravans, and campervans. This Bluetooth-enabled weighing device sits beneath your gas cylinder and measures consumption every 15 minutes, transmitting accurate data to your smartphone via the free Senso4s app. Compatible with all standard steel, aluminium, and composite gas cylinders from 18cm to 32cm diameter, the adjustable pull-out feet accommodate different cylinder sizes whilst maintaining the precision weighing accuracy of ±1%.

Motorhome owners and caravanners find the consumption forecasting particularly valuable during extended trips or wild camping. The app displays your gas level as both percentage and kilograms, plus calculates how many days your remaining gas will last based on your usage patterns. The device automatically pauses monitoring while you're driving to prevent inaccurate readings from vehicle movement, then resumes precise tracking once you're stationary. Push notifications alert you when levels drop below your chosen threshold, preventing those frustrating moments of running out of gas halfway through cooking dinner.

Built for touring life, the Senso4s PLUS handles gas cylinders up to 45kg total weight and raises your cylinder by just 29mm. The unit measures 198 x 179 x 29mm when closed, extending to 320 x 284 x 29mm when deployed. Battery life depends on usage frequency, and while you'll need to supply your own 3 x AAA batteries, the data exports before battery changes prevent losing your consumption history. The main limitation is that it monitors only one cylinder at a time, so twin-cylinder setups require separate units.

Please note that batteries are not included.

Senso4s PLUS Digital Gas Step 1
Step 1
Adjust Senso4s size to fit your gas cylinder
Senso4s PLUS Digital Gas Step 2
Step 2
Put the gas cylinder on the Senso4s device
Senso4s PLUS Digital Gas Step 3
Step 3
Use Senso4s mobile app


Senso4s mobile app


  • Always ready to cook/heat. Never end up with an empty gas cylinder unexpectedly. Cook or heat at your convenience.
  • Receive notification. Get notified on when your gas cylinder will run out of gas.
  • Plan your activities. Adopt your cooking/heating habits to your gas consumption.
  • One app. More devices. Having more than one Senso4s device? You can connect them all.

Senso4s PLUS Digital Gas Cylinder Monitor Features


  • One-size-fits-all. Compatible with all standard-sized gas cylinders.
  • Easy installation. Set up your Senso4s device in 3 simple steps (using Senso4s app) and never worry about it anymore.
  • Off the grid. No cloud, no Wi-Fi/cellular data, and no registration needed. Senso4s relies on local Bluetooth connection.
  • Design. Playful and trendy, yet fully functional patented design.

Specifications
  • Dimensions of the product (closed): (L x W x H): 198 x 179 x 29 mm
  • Dimensions of the product (extended): (L x W x H): 320 x 284 x 29 mm
  • Allowed gas cylinder dimension: 180 to 320 mm (outer base diameter)
  • Product net weight: 0.28 kg
  • Maximum weight load: 45 kg (total weight: gas + cylinder)
  • Minimum weight load: 3 kg
  • Safe overload: 90 kg
  • Measuring accuracy: ± 1 %
  • Maximum inclination of the device: 6°
  • Supply voltage: 3x AAA batteries (alkaline, LR03), 1.5 V (not included)
  • Battery lifetime: up to 18 months
  • Bluetooth (4.0) signal range: 20 m
  • IP Rating: IP44
  • Ambient temperature: -10 °C to +40 °C
  • Housing material: ABS / PC
  • EX Classification: II 3G Ex ic IIA T4 Gc (EX Zone 2, propane/butane)
  • Motion detection: Yes
  • Inclination detection: Yes
  • Ambient temperature monitoring: Yes


Frequently Asked Questions


What is Senso4s and how does it monitor gas bottles?
Senso4s is a digital gas cylinder monitoring system that tracks propane and butane levels in real time. The device sits underneath your gas bottle and weighs it continuously, then sends data to your smartphone via Bluetooth. You'll see exactly how much gas remains, track daily usage patterns, and get predictions for when you'll need a refill. The system works with standard Calor Gas, Flogas, and other UK propane/butane cylinders. It's particularly popular with caravan and motorhome owners who want to avoid running out of gas whilst wild camping or staying on sites without gas supplies.
Who uses Senso4s gas monitoring systems?
Caravan and motorhome owners make up the largest user group, especially those who wild camp or tour extensively around the UK and Europe. Many use it to monitor their main cooking gas and heating gas bottles separately. Camping enthusiasts with larger gas setups also find it worthwhile, particularly families who cook frequently on gas stoves and need reliable monitoring during extended trips. Some static caravan owners use it to track seasonal gas consumption patterns. Home users with outdoor gas heaters, BBQ setups, or backup gas cooking systems represent a smaller but growing segment.
What's the difference between Senso4s Basic and Plus models?
Senso4s Basic measures gas levels in stationary applications. It's designed for home BBQ use, static outdoor heaters, or caravans that stay put for extended periods. The Basic model costs less but doesn't compensate for movement. Senso4s Plus includes motion detection technology, which is essential for motorhomes and caravans that move frequently. The motion sensors automatically adjust readings to account for vehicle movement, road vibrations, and uneven parking spots. Plus models also include a refill notification feature when you connect a new gas bottle. Only the Plus version works reliably in moving recreational vehicles.
What gas cylinder sizes and brands does Senso4s work with?
Senso4s works with all standard UK propane and butane cylinders including Calor Gas (4.5kg, 6kg, 13kg, 19kg, 47kg), Flogas bottles, and most European gas cylinder brands. The device supports both propane (red bottles) and butane (blue bottles) with the same accuracy. The system handles cylinder weights up to 50kg total when full. Most common caravan gas bottles (6kg and 13kg Calor propane) work perfectly. You'll need to input your specific cylinder's empty weight and full weight during setup, which are stamped on every gas bottle.
How accurate are the gas level readings?

Senso4s provides readings accurate to within 100-200 grams when placed on solid, level ground. This translates to roughly 2-5% accuracy for most caravan gas bottles, which is sufficient for practical planning. The device measures every 15 minutes and stores the data locally. Your phone app updates whenever you connect via Bluetooth. Reading accuracy drops significantly on soft surfaces like grass, carpets, or sand, so you'll need a solid base like a concrete pad or wooden board.
What are the smartphone requirements and Bluetooth range?
Android phones need version 5.1 or newer with Bluetooth 4.0 capability. iPhones need iOS 8.2 or newer with Bluetooth 4.0. Most phones from 2015 onwards meet these requirements. Bluetooth range is approximately 10-15 metres in open air, less through caravan walls or around metal objects. You don't need to stay connected constantly - the device stores readings and transfers them when your phone comes within range. You can add multiple Senso4s devices to one phone, but the phone connects to one device at a time.
How long do the batteries last and what type do I need?

Expect 18 months of battery life with normal use under typical conditions. The device uses 3x AAA 1.5V alkaline batteries (not included). Don't use rechargeable or lithium-ion batteries as they provide different voltage characteristics that affect accuracy. Cold weather reduces battery life significantly - winter use in unheated caravans might give you 12-15 months instead of 18. A low battery icon appears in the app when replacement is needed. All stored measurements are lost when you change batteries, so export your usage data through the app beforehand if you want to keep it.
How much does Senso4s raise my gas bottle height?

The device adds 29mm to your gas bottle height. If you use the optional adapter (for certain cylinder valve types), total height increase is 34-35mm. This extra height can cause clearance problems in some motorhome gas lockers or caravan storage compartments. Measure your gas compartment before purchasing, especially if you have limited vertical space. Some users need to modify their gas locker or switch to shorter cylinders to accommodate the device.
Can multiple people access the same Senso4s device?

Yes, multiple smartphones can connect to the same Senso4s device, but only one phone connects at a time. Each person needs to install the Senso4s app and add your device using its unique MAC address (printed on the battery cover sticker). This works well for couples or families where both people want to monitor gas levels independently. The person who connects first gets access - if someone else wants to connect, the first person needs to disconnect.
How do I set up a new gas cylinder with Senso4s?
Use the Setup Wizard in the mobile app, accessed through an icon in the bottom left corner of your device's home screen. The wizard guides you through entering your gas cylinder's empty weight and full weight (both stamped on the cylinder), cylinder type, and gives your bottle a recognisable name. If you can't find the weight specifications on your cylinder, contact your gas supplier - they'll have the exact figures for your bottle type. Accurate weight data is essential for correct gas level readings. Senso4s Plus models include a refill notification feature that simplifies setup when connecting freshly filled cylinders.
EAN-13 : 4045659519219
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If you’ve changed your mind about keeping your purchase, please return it in its original condition with proof of purchase and we’ll exchange or refund it. Unless faulty, this should be within 100 days of receiving your order. By original condition, we’d expect this to mean that you’ve kept packaging and labels, and that the item is undamaged and unused.

For further information of how to return your item, please visit the "Returning an Unwanted/Faulty/Damaged Item" section on our Help Page.
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