Name: NEW! – Ohaus Explorer Semi-Micro Balance – Trade Approved
SKU: 12304
Availability: instock
Rating: 5 (1 reviews)

NEW! – Ohaus Explorer Semi-Micro Balance – Trade Approved

Our Price: £4,753.00 – £8,234.00 + VAT (£5,703.60 - £9,880.80 inc VAT)

Built For Sophisticated, Professional Weighing

Add Calibration Certificate

Description

OHAUS Explorer Plus™ Certified Semi-Micro: OIML Class I Legal-for-Trade Compliance for High-Value Materials

The OHAUS Explorer Plus Semi-Micro ‘M’ series (e.g., EXP125M/AD) is the definitive choice for businesses that require the highest level of certified accuracy in commercial transactions. With OIML R76 and EN 45501 Class I approval, these balances are Legal-for-Trade certified, making them mandatory for high-value compounding, pharmaceutical dispensing, and certified purity verification.

These certified models retain all the advanced automation (Motorized Leveling, Ionizer, Auto-Doors) while providing the legal security demanded by regulated commercial environments.

Certified Feature Set: EXP Semi-Micro ‘M’

The M-certified models ensure every transaction is legally compliant while benefiting from superior automation:

Feature	OHAUS Explorer Plus ‘M’ (EXP…M) Certified	Trade Compliance Benefit
Legal Approval	OIML R76 & EN 45501 Class I	Guarantees compliance for all high-accuracy commercial weighments.
Verification Interval (e)	1 mg	Defines the legal step size, protecting your business in transactions.
Setup Security	Motorized Levelling System	Ensures the precise physical setup required to maintain Class I legal accuracy.
Data Integrity	Password Protected and 100k Internal System Log	Provides a tamper-proof, time-synced audit trail for legal documentation.
Operation	Automatic Draftshield Doors and Built-in Ionizer	Speeds up workflow while maintaining the environmental stability critical for certified sub-milligram accuracy.

Commercial Security and Guaranteed Accuracy

For high-stakes commercial tasks, the Explorer Plus ‘M’ model provides essential security:

Certified Applications: Essential for certified compounding and legal dispensing of high-value or regulated chemical components.
Fast Compliance: Despite the extreme accuracy, stabilization times are fast (e.g., ≤5 seconds for 0.01 mg readability).
Connectivity: Robust communication options support integration with regulatory and inventory systems.

Please download the dedicated datasheet for full model verification details for the Explorer Plus ‘M’ Certified Semi-Micro Balances.

Downloads

We endeavour to deliver your goods to you as fast as we can. A large percentage of our orders are delivered in 3 - 5 working days (all mainland UK postcodes except IV, AB and KW) but some goods can take longer if they are delivered direct from the manufacturer or if the item is made to order. Please note, IV, AB and KW postcodes and non-mainland UK including Northern Ireland can take longer. Please give us a call if your order is urgent to verify the delivery time or see if a faster delivery is possible (additional costs may apply for larger orders).

The following delivery charges may apply per order:

£12.00 + VAT – Mainland UK
£30.00 + VAT – UK non-mainland

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Frequently Asked Questions

Please see below for answers to frequently asked questions.

Are readability and accuracy the same thing?

No, although they are both useful measures of weighing equipment performance. Readability refers to the smallest increment of weight that scales or balances will display. A readability of 0.5g, for example, means the scale would display an item of 10.503g’s weight as 10.5g and an item of 10.805g as 11.0g.

Accuracy is a measure of the possible difference between the displayed weight and an item’s real weight. It is often displayed as a percentage. An accuracy of +/- 1% means the scale could measure 100g as anywhere between 99g and 101g.

Do I need a calibration certificate?

A calibration certificate proves the accuracy of your weighing equipment. It is very likely that if accuracy matters in your workplace, certification will be required by your industry regulators. They are straightforward to get hold of though. Just ask our team.

Do I need a "Verified For Trade Use" scale?

If you are trading or transacting anything by weight, you will probably need to demonstrate your weighing equipment is verified for trade use. This gives your customers confidence in your business and will make sure buying and selling run smoothly. We can help get you with relevant approvals for your equipment.

How often should I have my scales calibrated?

The answer will vary depending on how your equipment is used. As a minimum, we typically recommend once a year but our team can provide advice based on your individual circumstances.

Which class of test weight should I use?

The International Organization of Legal Metrology (OIML) has established standards for the classification of calibration test weights. Varying from E0 & E1, which are the most accurate to M2 which are commonly used for calibrating platform scales, floor scales and other industrial weighing instruments.

As a rough guide we have listed desired accuracy against class below.

+/- 0.1% – UNclassed Proof Load Test Weights
+/- 0.05% – M3 (Check/calibrate coarse scales)
+/- 0.005% – M1 (Check/calibrate standard scales)
+/- 0.0015% – F2 (Check/calibrate portable balances)
+/- 0.0005% – F1 (Check/calibrate precision balances)
+/- 0.00015% – E2 (Check/calibrate analytical balances)

The choice of weight class depends on the intended use and the level of accuracy required for a particular application. If you’re unsure, talk to our team who can advise you on the right class for your equipment.

How to pack a scale for shipping

If you’re sending a scale back to us for recalibration, it is ideal to use the original packaging. If this is not available choose a sturdy well-padded box to avoid shocks. Where possible, protect the load sensor by removing the weighing pan and any under-pan support and pack these separately in the box. You may be able to use the equipment’s locking pins or screws too.