The HP21 is a versatile hand-held indicator that displays relative humidity, temperature and a calculated parameter such as the dew or frost point, based on the measurements of a HygroClip 2 plug-in probe.
The HP21 indicator has an extensive set of settings and functions that can be configured and enabled by the user with the ROTRONIC HW4 software. In spite of its sophistication, the HP21 can still be used just as a simple humidity and temperature indicator. Whether you decide or not to take advantage of its full potential, the HP21 will let you have it your way.
You will receive next day UK delivery to your door when ordering from Sunbelt Rentals Test & Monitoring . All weekday orders confirmed before 3:00 pm will be delivered to you the next day. If you do not receive delivery by the requested delivery time we will refund your delivery charge in full.
Deliveries are made through our own delivery vehicles and by National Couriers.
Next day delivery is our standard service however, please enquire for any of the following which we will endeavour to provide at extra cost:
In addition to nationwide delivery we also ship to EU and worldwide, please call our Customer Services team on our number above for prices.
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*Applies to Mainland UK excluding certain hard to reach areas such as the Highlands, if you are unsure please contact us for clarification.
If you do not have a credit account with Sunbelt Rentals Test & Monitoring , you may be required to pay a security deposit and be subject to a credit check. Please feel free to contact us and we will do our best to accommodate your needs.