Socket & See RCD PRO Professional RCD Tester
The Socket & See RCD PRO is a professional RCD tester designed for electricians, inspectors, contractors, and maintenance engineers who need fast and reliable RCD testing on-site.
Suitable for testing Type A and Type AC RCDs and RCBOs, the RCD PRO combines automatic testing, ramp testing, polarity checking, and hands-free operation in one compact and durable unit. It is ideal for domestic, commercial, and industrial electrical testing applications.
Built for everyday site use, the tester features a rugged rubber overmould, a large backlit display, and simple glove-friendly controls. The compact design makes it easy to carry between jobs while still offering advanced testing functions normally found on more expensive multifunction testers.

Why Choose the Socket & See RCD PRO?
- Tests Type A and Type AC RCDs and RCBOs
- Automatic 30mA RCD test sequence
- Ramp testing for nuisance tripping diagnostics
- x½, x1, and x5 testing capability
- Automatic 0° and 180° phase angle testing
- Built-in polarity test pad for PME systems
- Hands-free testing function
- Audible pass and fail alerts
- Voltage present and polarity indication
- Auto power-off function for battery preservation
- Designed for professional electrical testing work

Fast and Accurate RCD Testing
The automatic 30mA test sequence helps speed up routine testing by carrying out x½, x1, and x5 tests automatically at both 0° and 180°. Results can then be viewed using the recall function, helping electricians work more efficiently during inspection and testing procedures.
When connected to the mains, the tester automatically checks socket polarity and supply voltage. If unsafe wiring conditions are detected, the RCD PRO provides a clear warning using a flashing red LED and an audible alert. Testing is disabled until the issue is corrected, helping improve safety during use.
Built for Site Conditions
The Socket & See RCD PRO is designed for regular use in demanding working environments. The durable rubber casing helps protect the tester against knocks and everyday wear, while the large backlit screen improves visibility in darker areas such as plant rooms, loft spaces, and distribution boards.
The smooth rotary selector and large buttons make operation simple, even while wearing gloves.
Let‘s Auto-Test with the Socket & See RCD PRO!
Join Andrew as he demonstrates how easy it is to test a 30mA Type A RCD using the auto-test sequence.

Ideal Applications:
The Socket & See RCD PRO is suitable for:
- Electrical installation testing
- Periodic inspection and testing
- RCD and RCBO verification
- Maintenance and fault finding
- Domestic electrical work
- Commercial electrical testing
- Industrial maintenance inspections
- Diagnosing nuisance RCD tripping
❓ Frequently Asked Questions (FAQ)
Q1: What types of RCDs can the Socket & See RCD PRO test?
A. The tester is designed to test the most commonly used Type A and Type AC RCDs and RCBOs.
Q2: What is the automatic 30mA test function?
A. The automatic 30mA test sequence carries out x½, x1, and x5 tests automatically at both 0° and 180°, reducing the need to manually change settings during testing.
Q3: What is ramp testing used for?
A. Ramp testing helps identify nuisance tripping problems by gradually increasing leakage current until the RCD trips. This allows electricians to identify the exact trip current of the device.
Q4: Can the RCD PRO detect reverse polarity?
A. Yes. The built-in polarity test pad helps identify dangerous reverse polarity conditions on PME systems that may not be detected by standard socket testers.
Q5: What is the hands-free testing function?
A. The hands-free function allows the tester to begin testing automatically once connected to the circuit, making distribution board testing quicker and more convenient.
What comes with the Socket and See RCD PRO?
- Socket & See RCD PRO Professional RCD Tester
- Instruction Manual
- Mains Lead with 3 x 4mm Connectors
- Magnetic Hanging Strap
- 4 x AA Batteries
Deep Dive
The Socket & See RCD PRO combines the convenience of a compact socket-style tester with advanced testing features often found on larger multifunction testers.
The built-in ramp testing function is especially useful for electricians carrying out fault-finding work or investigating intermittent nuisance tripping issues. By gradually increasing leakage current, the tester helps identify weak or faulty RCD performance more accurately.
The hands-free mode is particularly useful when working directly at distribution boards using a suitable three-wire test lead set. Once connected, the tester automatically begins testing without needing to repeatedly press the test button.
Fully compliant with BS EN 61010, BS EN 61557, and BS EN 61326 standards, the Socket & See RCD PRO is designed to meet the requirements of professional electrical testing across the UK.