The very first MP Micromanometer sold was on 11th October 1982, model MP5KD. It was a digital instrument. At that time MP5KA analogue instrument was also in production. After a period of time it was quickly established th......The very first MP Micromanometer sold was on 11th October 1982, model MP5KD. It was a digital instrument. At that time MP5KA analogue instrument was also in production. After a period of time it was quickly established that digital instruments were more in demand. A year later a new model appeared on the scene, MP3KDS. This instrument not only measured pressure but also measured velocity in m/sec with the aid of a pilotstatic tube which was a real bonus to the HVAC industry. In 1987 the auto zero micromanometer appeared on the market, which meant that the instrument will zero even when pressure was applied to the instrument and it was a runaway success. By this stage all the MP range of instruments were exported all over the world and supplied to customers such as: ALNOR BP BSRIA Esso HVAC Engineers Neotronics Pharmaceuticals Universities These instruments were manufactured in Oxford, England. Sadly in 1991 the manufacturing of these instruments ended and two new companies emerged: DP Measurement and Associated Instruments Repairs.