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GBS 01 - Details

Home --> Probes for Level of Water Well Tanks

Water level / well probe /
Tank contents meas. probe


Piezo-resistive pressure sensor with temperature compensation.
Welded, non-corrosive design with integral and additionally sealed water-proof connecting cable.
The pressure compensation is done via a a cable-integrated air path to the atmosphere. Possible cable length up to 300m. A special feature is the lateral flow resistanc, which prevents media ingress. Therefore only the cable has to be replaced in case of a corresponding defect, while the sensor is still unharmed.
Please specify cable length (up to max. of 500 m) when ordering



GBS 01

For simple and inexpensive applications. Suitable for permanent level measuring in tanks, rivers, lakes, drinking-water wells, drillling holes, waste water plants....

GBS 02

For measuring the level of fuel and other aggressive media. The sensor is highly precise, insentitve to lateral flow and offers optionally lightning protection and other output signals (e.g. 0-10V). For measuring of gasoline please order EX-protection.



Measuring ranges: 
        0.1 bar (100 mbar) to 25 bar = 1 to 250 m water column

Available ranges (bar): 0.1 0.25 0.4 0.5 0.6 1.0 1.6 2.5 4.0 6.0 10.0 26.0 25.0
 Overload (bar):  1 2 2 2 4 5 10 10 17 35 35 80 80

Output signal: 4-20 mA (others upon request)

Perm. impedance:

        4-20mA: RA (Ohm)< Uv (V) - 10V / 0.02 A)

        0.10V: RA (Ohm) > 100kOhm


Auxiliary energy: 10 ... 30 VDC (14..30VDC at 0-10V), others upon request

        GBS01: accuracy (% of span): < 0.5 (setting of cut off point) resp. accuracy (% of span): < 0.25 (BFSL)

        GBS02: accuracy (% of span): < 0.25 (setting of cut off point) resp. accuracy (% of span): < 0.125 (BFSL)

        The accuracy of the pressure ranges 0.1 and 0.25 bar correspond wth the type GBS 01

        Hysteresis (% of span): <0.1

        Repeatability (% of span): <0.05

        Stability per year (% of span): <0.2 (at reference conditions)

Operating temperature: -10..+60°C (GBS01) or -10..+85°C (GBS02)

Temperature coefficient: (% of span): < 0.02 % / K (for measuring range >0,4bar)

Filling: KN77, food safe 

Housing: Chromium-nickel alloy 1.4301 or 1.4571
        Male thread G 1/2" (= 1,27 cm) accessible after removal of plastic protection cap.

Probe dimensions: diameter 27 mm, length of metal body: approx. 115 mm (GBS01, approx. 147mm (GBS02) cable diameter approx. 7.5 mm

Electric connection: 10m stationary casted PUR cable (GBS 01) resp. FEP-cable (GBS02). Glass-fibre screen protects cable against tearing. (Extra long cable against upcharge - please specify when ordering)  

Special design-types against upcharge: 

GBS01:  extra long cable (PUR)

GBS02:  extra long cable (FEP, teflon)

Non-standard output signal: e.g. 0-10 V

Integrated lightning protection


Water level / well probe / tank contents measurement probe, basic price

Please order separately:

= data sheet as *.pdf

= instruction manual as *.pdf

deutsche Beschreibung

Price of the basic article, German V.A.T. incl : EUR 558.00

The net price of the basic article  GBS 01 is:  EUR 481.03 

Price German V.A.T. incl. plus shipping and handling (p.r.t. footnote of this page)