Why Choose Model 991?

Reliable Precision – Delivers highly accurate validation ensuring temperature stability within ±0.01°C, giving you confidence in every reading.

NPL-Designed Blackbody – Engineered in collaboration with the National Physical Laboratory (NPL), guaranteeing consistent and dependable performance during routine checks.

Portable & Lightweight – Designed for easy on-site use, the Model 991 eliminates the need for bulky equipment, making it the ideal choice for field and clinical environments.

Cost-Effective – A budget-friendly solution offering professional-grade accuracy without the expense of a full laboratory setup.

Effortless Operation – Intuitive and easy to use, the Model 991 requires no specialised training, perfect for quick and efficient checks in busy medical settings.