Proving Units

A proving unit is a portable device that’s designed to be used as a two-pole tester, to verify the safe operation of voltage testers such as Multimeters and clamp meters and the accuracy is maintained. As we strongly advise to calibrate such products, when used in combination with a proving unit peace of mind will be made to ensure accuracy is maintained between calibration intervals. Proving units can test voltages from AC and DC instruments, whilst reducing the risk of a shock or arc flash by validating the testing equipment.

What are the different types of Proving Unit?

As we know the proving units are portable making them easy to transport and use in many environments, however, there are many varieties of proving units to accommodate the vast voltage ranges of electrical equipment. For example, low voltage proving units such as the Martindale PD240 can test voltages up to 240V, great for residential appliances. If you need something capable of testing high voltage testers, then the Martindale PD690 kit is a great option by testing voltages from 12V to 700V and with a proving unit accompanied by a voltage tester in a neat carry pouch.

Proving unit can supply a range of voltages to the two-pole voltage testers to ensure a thorough test at the applied voltages. An LED light is the sign that the two-pole voltage tester is functioning correctly, allowing you to proceed with your job. Like most devices in a toolbox or bag they can be susceptible to dust, water and general knocks, that’s why it’s important to maintain a testing schedule of your voltage testers. As these aspects can affect the accuracy of voltage testers and if inaccuracies aren’t noticed then this is when safety is in doubt. RS Components offers an in-house calibration service (RSCAL) prior to delivery, but also offers a yearly service for these products.

Why Choose RS Components for a Proving Unit?

Whether you’re an electrician or another professional, then RS Components has a comprehensive range of Proving Units and Proving Unit Kits to choose from leading brands such as Martindale, Fluke, Black Star and Megger. On hand advice from our technical experts to aid your decisions and our inhouse calibration service. See more about our calibration services here.


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Nombre de résultats par page
Description Prix Test Current Rating Output Voltage Display Type Battery Type Calibrated Power Source Dimensions Weight Height Length Maximum Operating Temperature Minimum Operating Temperature Model Number p Plug Type
N° de stock RS 704-7740
Référence fabricantSP 200
MarqueSocket & See
114,92 €
Each
Unité
36mA 50 → 690V - AA - Battery 130 x 65 x 49mm 350g 49mm 130mm +40°C -10°C SP-200 -
N° de stock RS 704-8712
Référence fabricantSP 200
MarqueSocket & See
183,37 €
Each
Unité
36mA 50 → 690V - AA RSCAL Battery 130 x 65 x 49mm 350g 49mm 130mm +40°C -10°C SP-200 -
N° de stock RS 192-5870
Référence fabricantRSVIPD150
MarqueMartindale
293,96 €
Each
Unité
- 700V LED AA RSCAL Battery, Mains 205 x 67 x 27mm 130g 27mm 205mm +40°C -10°C - -
N° de stock RS 781-8785
Référence fabricantVIPDLOK138
MarqueMartindale
314,00 €
Each
Unité
3.5mA 50 → 600V ac/dc LED - RSCAL Mains 205 x 67 x 27mm 130g 27mm 205mm +55°C -10°C - -
N° de stock RS 782-4430
Référence fabricantVIPDLOK138
MarqueMartindale
266,00 €
Each
Unité
3.5mA 50 → 600V ac/dc LED - - Mains 205 x 67 x 27mm 130g 27mm 205mm +55°C -10°C - -
N° de stock RS 865-4756
Référence fabricantRSVIPD150
MarqueMartindale
222,00 €
Each
Unité
3.5mA 700V LED AA - Battery, Mains 205 x 67 x 27mm 130g 27mm 205mm +40°C -10°C - -
N° de stock RS 144-5458
Référence fabricantRSVIPDLOKPRO150
MarqueMartindale
440,87 €
Each
Unité
- 690V LED - RSCAL Mains - - - - - - - UK GS38
N° de stock RS 706-8589
Référence fabricantMTL20/PD
204,00 €
Each
Unité
28mA 50 V ac/dc, 100 V ac/dc, 200 V ac/dc, 400 V ac/dc - - - Mains 213 x 112 x 72mm 350g 72mm 213mm +55°C -10°C - -
N° de stock RS 180-9301
Référence fabricantMTL15PD
292,00 €
Each
Unité
3.5mA 700V ac LCD AA RSCAL Battery 84 x 143 x 50mm 400g 50mm 84mm +40°C -10°C - -
N° de stock RS 735-6091
Référence fabricantPD440
MarqueMartindale
171,00 €
Each
Unité
- 440V - AA RSCAL Battery 143 x 84 x 50mm 400g 50mm 143mm +40°C -10°C PD440 -
N° de stock RS 781-8760
Référence fabricantRSVIDP138
MarqueMartindale
236,00 €
Each
Unité
3.5mA 440V LED AA RSCAL Mains 205 x 67 x 27mm 130g 27mm 205mm +55°C -10°C - -
N° de stock RS 704-7750
Référence fabricantVIP150 / SP200
MarqueSocket & See
144,18 €
Each
Unité
3.5mA 50 → 690V LED AA - Battery 130 x 65 x 49mm 350g 49mm 130mm +40°C -10°C - -
N° de stock RS 716-1086
Référence fabricantRSPD690
MarqueMartindale
158,00 €
Each
Unité
- 700V - AA RSCAL Battery 143 x 84 x 50mm 400g 50mm 143mm +40°C -10°C PD690 -
N° de stock RS 193-5337
Référence fabricantMARPD690SX
MarqueMartindale
133,00 €
Each
Unité
200mA 690V ac LED AA - Battery 150 x 80 x 35mm 350g 35mm 150mm +40°C -10°C PD690SX -
N° de stock RS 782-4437
Référence fabricantRSVIDP138
MarqueMartindale
188,00 €
Each
Unité
3.5mA 440V LED AA - Mains 205 x 67 x 27mm 130g 27mm 205mm +55°C -10°C - -
N° de stock RS 146-2603
Référence fabricantPRV240FS
MarqueFluke
164,00 €
Each
Unité
- - LED AA - Battery 7.4 x 2.8 x 11.7mm 230g 11.7mm 7.4mm +50°C -10°C PRV240FS -
N° de stock RS 193-8692
MarqueRS PRO
62,20 €
Each
Unité
0.03mA 12 → 1000V ac/dc LCD AAA - Battery 73 x 34 x 240mm 237g 240mm 73mm +55°C -10°C - -
N° de stock RS 180-9209
Référence fabricantMTL15PD
222,00 €
Each
Unité
3.5mA 700V ac LCD AA - Battery 84 x 143 x 50mm 400g 50mm 84mm +40°C -10°C - -
N° de stock RS 146-2609
Référence fabricantPRV240FS
MarqueFluke
210,00 €
Each
Unité
- - LED AA RSCAL Battery 7.4 x 2.8 x 11.7mm 230g 11.7mm 7.4mm +50°C -10°C PRV240FS -
N° de stock RS 193-5357
Référence fabricantMARPD690S
MarqueMartindale
158,00 €
Each
Unité
200mA 690V ac LED AA RSCAL Battery 150 x 80 x 35mm 350g 35mm 150mm +40°C -10°C PD690S -