
Watchman Sonic Advanced
Watchman Helpline - 02838364415
Losing Echo on the receiver? Please make sure Dip Switch 2 is UP (waveguide mode) and this narrows the beam
Please find below the link to Watchman Sonic Advanced support page which includes FAQs and Step-by-step Installation videos:
Watchman Sonic Advanced Support Page
PROTECT YOUR OIL! With the Watchman Sonic Advanced, you can monitor your oil tank contents 'at a glance' from your home, no need to walk outside to the tank. In the event of the oil level in the tank dropping at an unusual rate the receiver will emit an audible alarm.
How it works
The transmitter sits on top of the tank and, using ultrasonic level measurement techniques, constantly measures the level of oil in the tank.
It then transmits that information to the receiver, which is plugged into an electric wall socket, located in a convenient place within the house.
The height of the liquid is displayed on an LCD screen on the receiver. The householder can monitor the level of oil in their tank from inside their home.
When the level of oil in the tank gets below 10%, the fuel dispensing pump symbol appears, indicating to the householder that it is time to order some more oil.
Upgrade to a smart monitoring system with the USB Receiver. This lets you transform your Watchman Sonic Advanced, into a smart Wi-Fi tank level monitor. Enables you to control your oil levels through a smartphone app without being tied to a single location. The SENSiT USB receiver and app alerts you of low levels, sudden drops, predicted run out and consumption monitoring notifications directly to your phone. The SENSiT even works with Alexa, so when asked 'How much oil is in my Tank?', she will be able to let you know!
Product Features:
- Quick and easy to install
- Suitable for steel or plastic tanks
- 200 metre transmitters to receiver range
- Measure tanks up to 3 metres in height
- Audible alarm when oil levels run out
- Sudden Drop Alarm (ON/OFF)
- Waveguide mode (ON/OFF)
- Unique serial number
- Works with the USB Receiver to make the Watchman Sonic Advanced, a Smart monitoring system
Important — please read
Please ensure the product you are ordering is the correct size and suitable for the purpose. Special order, bespoke and non-stock tanks are not returnable. If you order a tank and find it is too big, too small, or unsuitable for your requirements, it can be expensive to return. Our cancellation & returns policy explains this in more detail — see Terms & Conditions.
Delivery charges
Our shipping costs cover most of the UK. However, parts of England, the Scottish Highlands and Islands (including areas north of the Glasgow / Edinburgh border), Isle of Wight, Channel Islands, Isle of Man, Anglesey, Western Isles, Shetland Islands, Orkney Islands, Isles of Scilly, Northern Ireland and the Republic of Ireland may cost more.
Please call before ordering if the delivery postcode is listed below. There may be additional shipping costs.
- AB
- BT
- CA
- CT
- DD
- DG
- EH
- FK
- G
- GY
- IM
- IV
- JE
- KA
- KW
- KY
- LD
- LL
- ML
- PA
- PH
- PO 30–41 Isle of Wight
- SA
- SY
- TD
- TN
- TR
- ZE
- Southern Ireland
Looking to avoid shipping charges?
All our tanks are available for collection ex works. Our suppliers are based all over the UK — please call if you wish to collect.
Overseas orders
International orders are welcome. Payment is by IBAN / SWIFT / BIC, MoneyGram and letters of credit. We regret that credit cards are not accepted for international orders.
A purchase order is required; we will then create a pro-forma invoice, and tanks are ordered on clearance of funds.
If you require additional export documentation — for example a Certificate of Origin, or commercial invoices certified by the Chamber of Commerce — you must notify us before completion of your order, as we will have to invoice cost and admin charges to the order.
Please call if you have any questions: +44 (0)1643 703358
Offloading
Unless a HIAB delivery has been booked at additional cost, it is the customer’s responsibility to offload with suitable equipment on the day of delivery. A failed delivery may result in additional charges.
We recommend that installers, plant hire and installation materials — excavators, aggregates and so on — are not booked until you are in receipt of the goods. Tanks Direct cannot be held responsible for costs incurred due to unforeseen delays; please see our terms for more details.
Any questions about your delivery? Contact the Sales Team on 01643 703358.
Looking to return an item?
If you wish to return goods, please complete the form on this page to provide further information.
Once your request is approved, a valid Returns Authorisation Number (RAN) will be issued to initiate the returns process along with information on how & where to return your order along with any costs involved.
Please DO NOT return any goods without this authorisation. Goods cannot be accepted without this.
Returns are not accepted at our Minehead Office, please wait until we contact you before returning any goods.
Please click here to request a return of one of our products.
Talk to a
specialist
Sizing, regulations, installation. Our team has been answering these questions for over 25 years.
Why Tanks-Direct
22 years. 100,000+ tanks. Specialists, not generalists.
Nationwide delivery
GB and Northern Ireland covered. HIAB and crane offload available. Highlands and Islands quoted on request.
WRAS & BS EN compliant
Every potable tank is independently certified. Documentation supplied with each delivery.
Best-price guarantee
4.6/5 on Feefo from 1272 verified reviews. We price-match any genuine like-for-like quote.
Specialist advice
Trade-grade phone and email support, Mon-Fri 8am-5pm. Site visits for orders over £2,500.


