The Palintest Kemio Heavy Metals from Halma plc - handheld testing brings lab-grade control to water plants

Reviewed: ad hoc news Lifestyle & Consumer desk. Edited and checked on 2026-06-26, 10:00. Details in the imprint.

The Palintest Kemio Heavy Metals sits in the palm like an oversized smartphone, its screen glowing softly while a plant technician watches the countdown for a lead test on a sample of tap water. One thumb press starts the measurement, a quiet beep confirms the result and the tiny instrument replaces a whole bench of chemical glassware.

What Kemio aims to solve

Kemio Heavy Metals from Halma’s Palintest division is a handheld electrochemical analyser designed for rapid on-site testing of toxic metals such as lead, cadmium and mercury in water samples. The device targets water utilities, industrial plants and laboratories that need verification testing close to the process rather than waiting for central lab turnaround.

The unit uses disposable sensor strips and pre-programmed test methods, so operators follow a guided workflow with minimal training. According to Palintest, Kemio can deliver quantitative readings in just a few minutes and is validated for applications such as checking drinking water supplies, process water and wastewater discharges.

How the device works in hand

Product manager Dr. Hannah Morgan describes Kemio as “lab-grade measurement in a handheld form factor”, pointing to its touch interface built for gloved operation and IP-rated shell for damp plant environments. The housing feels robust rather than delicate, with a slightly textured back that avoids slipping when the instrument is carried around metal walkways.

In use, an operator draws a small sample into a beaker, dips the sensor strip and then inserts it into Kemio’s port, watching the progress bar march across the display. Instead of juggling reagents, color charts and stopwatches, the user gets a numeric mg/L value and a simple pass-or-fail status against configured limits, which can be quietly reassuring during routine compliance checks.

Strengths and trade-offs

Compared with traditional wet-chemistry kits, Kemio’s electrochemical approach reduces operator subjectivity because it does not rely on visually comparing colour intensity. That helps in noisy, busy plants where lighting varies and technicians may be working at odd angles or on cramped platforms.

On the other hand, the analyser depends on proprietary sensor strips, so ongoing consumable costs become part of the total ownership calculation for utilities already working under tight budgets. Kemio focuses on specific heavy metals rather than broad spectrophotometric screening, which means it complements rather than replaces existing laboratory analysis for full regulatory reporting.

Where it is used and available

Palintest reports deployments of Kemio instruments across drinking water utilities, food and beverage plants and industrial sites that must maintain strict discharge limits for metals. For operations managers, the practical appeal lies in being able to test at the point of risk, whether at a borehole head or a discharge pipe, without lugging samples back to a distant lab.

The system is sold primarily through Palintest’s own sales network and regional distributors, with pricing typically discussed directly with customers rather than posted as a public list. While specialist instrument retailers in Europe and Asia carry Palintest products, Kemio Heavy Metals remains a professional tool rather than a consumer item, and availability is focused on industry procurement channels.

Halma context and share listing

Halma, headquartered in Amersham in the United Kingdom, groups Palintest with other environmental and safety technology businesses that monitor water quality, industrial safety and healthcare equipment. These subsidiaries feed into a broader narrative of life protection and hazard detection that Halma highlights in its reporting to investors.

Net-net, Halma shares (ISIN GB0004052071) are listed on the London Stock Exchange, where the Halma share price is tracked as part of the FTSE 100 Index.

This article was AI-assisted and editorially reviewed. Product information without guarantee; prices and availability may change at short notice. No investment advice, no buy or sell recommendation. Stock-market transactions involve risks up to total loss.