Are the sale prices already reduced prices?

Yes, our sale prices already include the corresponding discount.

Can discounts or promotional codes also be used for sale items?

Different rules apply depending on the discount or promotional code. These can be found in the respective promotion.

Which cables can be found in the B+B online shop?

We offer connection cables, compensation cables, copper cables, thermocouple wires, thermocouple cables and extension cables.

What are the advantages of a glass fibre cable?

Glass fibre cables are highly temperature-resistant and can withstand very high temperatures (up to 400 °C). This is the biggest advantage of glass fibre cables over other cable insulation materials such as PVC, silicone or PFA.

Are other lines or larger quantities available?

On request, we can offer numerous other cables, including in larger quantities.

Which cables are suitable for the respective application?

Please feel free to contact us by telephone, we will be happy to advise you!

What is the difference between a thermal cable and a compensation cable?

Compensation cables consist of so-called substitute materials, which have a different chemical composition than the materials of the corresponding thermocouple. The substitute materials have the same thermoelectric properties as the corresponding thermocouple within the permissible application temperature range for compensation cables. A thermocouple cable consists of the same metals as the thermocouple itself. Compensation cables are often less expensive than thermocouple cables.

What kind of types of gas probes does B+B have?

At B+B, you will find various gas probes that differ from one another in terms of their operating principle and thus their area of application. B+B Thermo-Technik GmbH's product range basically includes flue gas probes, a multi-hole probe and exhaust gas probes.

Can B+B produce customised items?

Yes, customised designs are available on request. Please note that due to the planning and implementation costs involved, we can only produce customised designs for orders with a minimum value of €500.00.

Where do you use exhaust gas probes?

Exhaust gas probes are used for monitoring and control in heating technology, buildings, industrial plants, combustion plants, vehicles and large vehicles such as tanks to monitor emissions and ensure efficiency and safety. They help to monitor compliance with environmental regulations and increase safety by controlling exhaust gases.

What are the special features of the flue gas probes from B+B?

B+B offers probes with a heated pistol grip. This heating reduces condensation. The handle also has a soot filter holder. B+B also sells probes for combustion plants (1. BImSchV), multi-hole probes and special probes for exhaust gas measurements on large vehicles, e.g. lorries, buses and tanks.

What are the key feastures of the flue gas probes?

The Firebird TGD flue gas probe has a screw-off coaxial probe tube, separate gas/pressure paths, a stainless steel protective tube and a moulded handle. The Eco TGD flue gas probe also has a moulded handle and impresses with its fast response time. In addition, a slotted hole is visible on the measuring tip. The Sigma flue gas probe, on the other hand, differs in particular in its heated handle, optional screw-off probe tube and R6 soot filter holder.

What delivery methods are available?

Shipping is generally handled by DPD.

Is there a minimum order quantity?

No. No minimum order quantity surcharge is applied in our online shop.

What payment methods does B+B offer?

We accept payments via PayPal, invoice (only for the B2B shop and only valid for Germany), prepayment, instant transfer (Germany and Austria), credit card (VISA and MasterCard).

Will I receive an order confirmation?

When you click on the Buy button, you will receive an order confirmation from us by e-mail.

Can new customers order on account?

In principle, it is possible for new customers to order on account. When you register, it may take a few minutes for your data to be entered into the system. Accordingly, the field for purchase on account may not be immediately visible after you register. This will be activated after a short time and is limited to domestic corporate customers.

How do I know if my goods have been dispatched?

As soon as the delivery is dispatched, you will receive a shipping confirmation by email with the DPD tracking number.

Can you deliver outside the EU?

This agreement can be made upon request.

How can I tell if an item is in stock?

There is a traffic light function that indicates whether an item is available. You can see the description of the individual traffic lights on the item.

As a retailer, am I eligible for a reseller discount?

Please feel free to contact us for your personal discount.

Do you deliver to another EU country without VAT?

This is possible if a valid VAT identification number is provided.

Are packaging costs included in the shipping costs?

Yes, they are included in the shipping costs.

Do the prices displayed in the B2B shop include VAT?

The prices displayed in the B2B shop are net prices.

Do the prices listed in the B2C shop include VAT?

The prices displayed in the private customer shop (B2C shop) are always gross prices (regardless of whether domestic or international) including German value added tax, plus shipping costs.

Is there a free shipping threshold for Germany and other countries?

There is one for Germany starting at €300 gross. There is no free shipping threshold for other countries.

Can I have alook at my shopping basket again later? Is it saved?

As a logged-in user, your data and shopping basket are stored in your customer account and will be available to you the next time you log in. However, items will be automatically removed after 2 months.

Error message regarding VAT during registration

When registering in the B2B shop, an automatic query of the VAT ID is run in the background on the server of the Federal Central Tax Office in order to validate it. Unfortunately, this server is often unavailable, which is why you receive the error message ‘VAT number ID invalid’. Please contact us directly or wait a few minutes until the server is available again.

Do I have to register as a user to place an order in the B+B online shop?

Yes, it is always best to register. This allows you to view your orders and payment options, as well as add orders back to your shopping basket with a single click. You will then have a comprehensive overview of your account and your orders.

Not every company allows orders to be placed via the online shop. What options are available?

You can place an order in the following ways:by Fax: +49 (0)771 8316-50 by E-mail: info@bb-sensors.com

An item needs to have a ‘neutral’ or ‘personalised’ label. Is that possible?

Please enquire directly with us regarding this matter.

What types of accessories does B+B supply?

Our range of accessories can be divided into three categories: cables, turned parts, and other accessories. The latter category, "other accessories," in particular, offers a wide range of product groups. Here, we offer, for example, plastic housings, wall mounts, and (sintered) filters.

Where are the turned parts being manufactured?

Most of the turned parts are manufactured at our site in Donaueschingen (Germany).

Out of what materials are the turned parts made of?

The material may also vary depending on the turned part. We offer a wide selection ranging from various stainless steels to brass. You can find the materials in the specification tables for the respective items.

Can B+B produce customised items?

Yes, customised designs are available on request. Please note that due to the planning and implementation costs involved, we can only produce customised designs for orders with a minimum value of €500.00.

For which items is there a separate wall mount?

Wall mounts for the B+B rain detector and the B+B brightness sensor can be purchased in our online shop.

Which turned parts does B+B supply?

We cover a wide range of products, from connection heads to bayonet caps, double spigots, screw-in sleeves, screw-in nipples, screw-in spigots, compression fittings, protective sleeves and probe housings.

Can B+B produce customised items?

Yes, customised designs are available on request. Please note that due to the planning and implementation costs involved, we can only produce customised designs for orders with a minimum value of €500.00.

What is the accuracy of the FLW-122?

The FLW-122 achieves an accuracy of <3% of the measured value. However, this is highly dependent on the evaluation electronics used.

Which flow sensors is the module compatible with?

The module is compatible with FS5/7 and OOL flow sensors.

Which parameters are recorded for air quality measurement?

Air quality measurements primarily record pollutants such as particulate matter, nitrogen dioxide, ozone, carbon monoxide, sulphur dioxide and volatile organic compounds (VOCs), as well as climatic parameters such as temperature, humidity and CO₂ concentration, in order to assess both outdoor and indoor air quality.

What does the installation of this sensor look like?

When installing the duct sensor, the sensor tube should point downwards to prevent measurement errors due to the self-heating of the electronics. It should be noted at this point that the sensor has a certain degree of pressure resistance at the head, but is not suitable for use with compressed air at higher pressures. If the sensor is to be used outdoors, a weatherproof housing is recommended. The operating instructions for our duct sensor also include a drilling template for installation.

Can B+B produce customised items?

Yes, customised designs are available on request. Please note that due to the planning and implementation costs involved, we can only produce customised designs for orders with a minimum value of €500.00.

Which protective filter is used with the duct sensor?

The humidity sensor comes with a 25 µm PE sintered filter as standard. Other filters and special hydrophobic filters are of course available as optional accessories.

What types of duct sensors are available from B+B?

The channel sensors can be individually configured using three different components: the measured variable (temperature, temperature and humidity), the output signal (0...10 V or 4...20 mA) and the version with or without display.

What are duct sensors and what are they used for?

Duct sensors have been specially developed for installation in ventilation or air conditioning ducts. They measure the air temperature and/or humidity directly in the air flow, thus providing precise data for control and monitoring systems.

Can B+B produce customised items?

Yes, customised designs are available on request. Please note that due to the planning and implementation costs involved, we can only produce customised designs for orders with a minimum value of €500.00.

Level controller board | 12...15 V DC max. 65 mA | 11...14 V AC max. 80 mA

Article number: SHOP WLSW-12V

€65.68

excl. VAT plus shipping

Delivery time: 2-3 working days after receipt of payment (advance payment) or conclusion of contract

Operating voltage

Save money with our volume discounts
1 piece each	€65.68
from 3 piece each	€63.69
from 5 piece each	€61.70
from 10 piece each	€59.71

Quantity (piece)

Individual product request

Print article

Do you have questions about this article?

Then we look forward to hearing from you.

B+B Chat +49 (0) 771 8316 - 0 shop@bb-sensors.com

Description:	Level controller board
Relay:	NC contact 250 V AC / 30 V DC / 5 A; NO contact 250 V AC / 30 V DC / 2 A
Switching capacity NO contact:	230 V AC/ 8 A; 30 V DC / 8A
Switching capacity NC contact:	230 V AC / 8 A; 30 V DC / 8A
Impedance switching point:	15...80 kΩ, adjustable via individual potentiometers
Interference suppression:	Normally open contact suppressed by varistor
Dimensions:	(LxWxH) 95 x 75 x 30 mm
Operating voltage:	12...15 V DC max. 65 mA, 11...14 V AC max. 80 mA
Measuring voltage:	max. 5 Vss
Measuring current:	max. 250 µA
Scope of delivery:	Including connection cable and instructions
Weight:	0.26 kg

The level controller board 12 V DC makes the level control of conductive liquids, such as rain or tap water possible.

The level controller board enables the level control of conductive liquids such as tap water, rainwater or condensate. The level in the container is measured using electrodes. These are attached to the container wall as contact surfaces. Another option is to attach stick electrodes that protrude into the container. With two independent stages, the level controller board enables the simultaneous monitoring of the minimum and maximum liquid level and the control of two different actuators, for example a filling valve and a pump.

Typical areas of application

Machinery and plant engineering
Environmental measuring technology
Process automation

Title	File name	File Size	File extension	Date	Download
Bedienungsanleitung Niveauregler-Platine WLSW-12V	Bedienungsanleitung_Niveauregler-Platine_WLSW-12V	1813kb	pdf	2025-07-02 07:40
Operation manual level controller WLSW-12V	Operation_manual_level_controller_WLSW-12V	1616kb	pdf	2025-07-02 07:40

Technical details

Description:	Level controller board
Relay:	NC contact 250 V AC / 30 V DC / 5 A; NO contact 250 V AC / 30 V DC / 2 A
Switching capacity NO contact:	230 V AC/ 8 A; 30 V DC / 8A
Switching capacity NC contact:	230 V AC / 8 A; 30 V DC / 8A
Impedance switching point:	15...80 kΩ, adjustable via individual potentiometers
Interference suppression:	Normally open contact suppressed by varistor
Dimensions:	(LxWxH) 95 x 75 x 30 mm
Operating voltage:	12...15 V DC max. 65 mA, 11...14 V AC max. 80 mA
Measuring voltage:	max. 5 Vss
Measuring current:	max. 250 µA
Scope of delivery:	Including connection cable and instructions
Weight:	0.26 kg

Product description

The level controller board 12 V DC makes the level control of conductive liquids, such as rain or tap water possible.

The level controller board enables the level control of conductive liquids such as tap water, rainwater or condensate. The level in the container is measured using electrodes. These are attached to the container wall as contact surfaces. Another option is to attach stick electrodes that protrude into the container. With two independent stages, the level controller board enables the simultaneous monitoring of the minimum and maximum liquid level and the control of two different actuators, for example a filling valve and a pump.

Typical areas of application

Machinery and plant engineering
Environmental measuring technology
Process automation

Downloads

Title	File name	File Size	File extension	Date	Download
Bedienungsanleitung Niveauregler-Platine WLSW-12V	Bedienungsanleitung_Niveauregler-Platine_WLSW-12V	1813kb	pdf	2025-07-02 07:40
Operation manual level controller WLSW-12V	Operation_manual_level_controller_WLSW-12V	1616kb	pdf	2025-07-02 07:40

Other customers also bought

Level controller 230 V/AC in housing with operating panel

Art.Nr.: SHOP WLS-GEH230V

From €126.45

Liquid level probe for level controller

Art.Nr.: SHOP ELEKT-PEND

From €67.49

FAQ

Versand

Der Versand unserer Produkte erfolgt per DPD gemäß ICC-Incoterms®2010:

EXW B+B Thermo-Technik GmbH Donaueschingen Incoterms®2010

Zahlung

Zahlungsmöglichkeiten:

Wir akzeptieren die folgenden Zahlungsarten:

Kreditkarte (Visa und MasterCard):
Weltweit

PayPal:
Weltweit

Vorauszahlung (Banküberweisung):
Weltweit

Bitte beachten Sie: Bei Zahlung per Vorkasse erfolgt die Lieferung nach Zahlungseingang.

Sofortüberweisung:
Germany and Austria

Rechnung (Netto 30 Tage):

Deutsche Firmenkunden,

Schweiz

Sichertheit

Frequently asked questions & answers

What shipping methods does the B+B online shop offer?

We generally offer standard shipping via DPD. You can also pick up your order yourself or ship with your own tracking number. You can select the option you prefer during the ordering process.

Can products be returned?

You find more information about this topic on our rights of withdrawal page.

Which payment methods are being offered?

You can pay with PayPal, credit card (VISA and MaserCard), payment in advance, Sofortüberweisung (direct banking) and in some cases invoice. You can find more information on the page shipping and payment.

Can B+B produce customized items?

Yes, at B+B we can manufacture customised items for you with a minimum order value of €500.00.

Subscribe to newsletter

Subscribe to the B+B newsletter and never miss any news again

Never miss out on current offers and sales
Be informed in good time about new products, product series and instructions
Always stay up to date

Certifications

Thank to the latest research, development and manufacturing technologies, as well as DIN EN ISO 3001:2015 and DIN EN 61340-5-1 certifications, we produce our products in accordance with the highest quality standards.

Calibration service

The B+B calibration laboratory is accredited by the German Accreditation Body (DAkkS) in accordance with DIN EN ISO/IEC 17025:2018 for the thermodynamic measurement parameters of temperature and relative humidity.

Individual manufacturing

You tell us your application and we will supply you with the right product for measurement and monitoring. We place particular emphasis on close cooperation in order to guarantee optimal product development in live with your requirements.

Location

B+B Thermo-Technik GmbH is based in the town Donaueschingen south-west Germany. From here, B+B quality products are distributed worldwide.

Level controller board | 12...15 V DC max. 65 mA | 11...14 V AC max. 80 mA

Do you have questions about this article?

Similar articles

Other customers also bought

FAQ

Subscribe to the B+B newsletter and never miss any news again

Certifications

Calibration service

Individual manufacturing

Location