Arctic Hayes Stem Thermometer (AH02) The Arctic Hayes Stem Thermometer is fast and accurate for professional and domestic use. With a stainless steel probe, it's suitable for liquids, semi-solids and solids, making it useful for plumbing diagnostics, heating system checks, catering environments and laboratory use. With a wide operating range of -55°C to +330°C, the thermometer is versatile across many applications. The Max/Min function helps monitor temperature fluctuations, a data hold function locks a reading in place for easy note-taking, and the selectable °C/°F display makes it easy to use whatever the preference. Compact and robust, the thermometer comes with a protective probe sheath, a low battery indicator, and is CE, UKCA, EMC and RoHS compliant. Supplied with a long-life 3V CR1220 battery, it's ready to use straight out of the