BZ201-32 Industrial Socket Tester with Audible Buzzer
- Professional industrial socket tester for 32A commando sockets
When safety, compliance and speed matter, the Martindale BZ201 range delivers dependable first-line verification of industrial power supplies. The BZ201-32 Industrial Socket Tester with Audible Buzzer is purpose-built for testing 230V 32A IEC 60309 “Commando” outlets, giving electricians, maintenance engineers and site managers instant confidence in socket wiring integrity.
Designed for demanding environments, this robust industrial socket tester identifies wiring faults in seconds, confirms correct connections with a clear audible buzzer, and checks voltage levels - all in a tough, maintenance-free housing.
Why Choose the Martindale BZ201-32?
The Martindale BZ201 series includes both 16A and 32A models. The BZ201-32 is specifically fitted with a 230V 32A, 3-pin plug to BS EN IEC 60309-1, making it the correct choice for higher-current single-phase industrial applications.
If you are testing heavier-duty outlets used for high-load equipment, heaters or higher-capacity supplies, this Commando socket tester ensures fast and reliable verification.
Fast, Fail-Safe Fault Detection
The industrial socket tester uses three bright LEDs arranged to mirror the plug pin configuration. Faults are instantly indicated by the LED pattern, with up to 28 wiring fault conditions identified.
Unlike guesswork testing methods, the Martindale BZ201 adopts a fail-safe approach — if one or more LEDs fail to illuminate, a potential wiring fault is immediately clear. A lookup chart on the tester body allows quick diagnosis of common issues.
In addition, this Commando socket tester provides:
- High voltage indication: >270V ±5%
- Low voltage indication: <195V ±5%
- Earth-neutral voltage high indication: >30V nominal
This makes the industrial socket tester ideal for identifying potentially unsafe installations before connecting valuable equipment.
(Please note: like all standard socket testers, the Martindale BZ201 does not detect Earth/Neutral reversal)
Audible Buzzer for Instant Confirmation
One of the standout features of the Martindale BZ201 range is the integrated audible sounder.
The buzzer:
- Confirms correct wiring instantly
- Allows testing of sockets that are difficult to see
- Assists when outlets are positioned at height or in awkward locations
- Functions as a basic fuse finder — when the correct fuse is pulled, the buzzer stops
This makes the BZ201-32 industrial socket tester particularly effective for maintenance teams working in busy industrial or commercial environments.
Built for Industrial Environments
Manufactured with a tough ABS moulded housing, the industrial socket tester is:
- Durable and impact resistant
- Maintenance free
- Suitable for indoor and outdoor use (dry conditions)
- Rated CAT III 300V
The Martindale BZ201 is powered directly from the socket under test, consumes less than 2.5W, and enters standby after approximately 10 minutes.
Operating range:
- Temperature: -10°C to 40°C
- Altitude: Up to 2000m
- Humidity: Max 85% RH
Full technical specifications can be found in the official brochure.
BZ201-32 vs BZ201-16 – Which Do You Need?
Both models in the Martindale BZ201 series share the same intelligent testing features and safety performance. The key difference is the plug rating and intended application.
🟦 BZ201-32 Industrial Socket Tester
- 230V AC rms
- 32A 3-pin plug to BS EN IEC 60309-1
- Designed for higher-current industrial loads
- Physically larger Commando connector
🟦 BZ201-16 Industrial Socket Tester
- 230V AC rms
- 16A 3-pin plug to BS EN IEC 60309-1
- More widely encountered in general industrial and caravan applications
- Ideal for lighter-duty single-phase supplies
In UK industrial and outdoor settings, 16A blue IEC 60309 connectors are often more common for general use. However, where higher power is required, the BZ201-32 industrial socket tester is essential.
If you are testing 32A blue Commando outlets, you need the 32A Commando socket tester - not the 16A version.
Key Features at a Glance
- Quick and easy single-phase socket verification
- Designed specifically as an industrial socket tester
- Detects 28 wiring fault conditions
- Three bright LED indicators with simple fault codes
- Audible buzzer for instant pass confirmation
- High and low voltage indication
- Basic fuse finder capability
- Tough, no-maintenance design
- CAT III 300V safety rating
| Features | |
| Nominal operating voltage | 230V AC rms |
| Operating frequency | 50Hz |
| Power | From socket under test |
| Power consumption | <2.5W |
| Overvoltage | CAT III 300V |
| Operating environment | -10 to 40°C at max. 85% RH |
| Safety conforms to | BS EN 61010-1, CAT III 300V, Class II, double insulation |
| Dimensions | 91(L) x 80(W) x 38(D)mm |
| Weight | 195g |
| Warranty | 2 Years |
Essential First-Line Safety Tool
Socket testers are not a substitute for full installation verification, but as a first-line indicator they are indispensable. The Martindale BZ201 gives maintenance teams the confidence to identify unsafe conditions before installing or energising equipment.
For facilities management, hire companies, event power distribution, workshops, and industrial sites, a reliable industrial socket tester is a fundamental part of your electrical safety toolkit.
Order the BZ201-32 Industrial Socket Tester Today
Protect your team. Protect your equipment. Verify with confidence.
Choose the Martindale BZ201-32 industrial socket tester - the dependable Commando socket tester engineered for professional use in demanding 32A industrial environments.