株式会社第一科学

Welcome to Daiichi-Kagaku

Daiichi Kagaku is a distribution firm specialized in humidity measurement instruments.
Our ISO9001 certified management system surely ensures your satisfaction.

  • Need some advice for humidity measurement?
  • Looking for a sales agent in Japan?

Portable Humidity Calibrator “Humi Pump”

  • Concept

    Enables to Hygrometer Calibration ANYWHERE YOU DESIRE.

  • Features

    Daiichi Kagaku created the new humidity generation method.

    Volume method

    “Volume method is a patented technology which enables to generate humidity by controlling the ratio of dry air and saturated air.The operating handle makes this possible by adjusting the stroke volume of two cylinders, containing dry and saturated air.Humidity can be adjusted between 10 to 80 % range without power supply.Make humidity calibration simple and easy.”

  • Specification

    Humidity Generation Range 10 to 80 %
    Repeatability ±3 % about 10 to 70 % at the room temperature
    Time required to equilibrium Around 5 minutes
    Range of use 5 to 35 degC
    Range of storage Full water 5 to 40 degC
    Vacant water -10 to 50 degC
    Power Supply Not required
    Weight 7 kg
    Size (W)480 x (H)360 x (D)165 mm
    Accessories 3 Humi Packs, pure water, water supply bottle, Desiccating agent.

About us

We have six offices in Japan. We work closely with our local dealerships and customers all over the country. We have not only an extensive distribution network in Japan but also business connections with globally known manufacturers such as Hitachi.

Trade name Daiichi-Kagaku.Inc
Head office 2-12-13 Hongo, Bunkyo-ku, Tokyo 113-8450 Japan
Branch Office Ibaraki Branch office,
Nishi Tokyo Sales Office,
Kansai Sales Office,
Takasaki subbranch,
Nagoya subbranch
Establishment March 16, 1941
Capital 24,000,000 yens
President and CEO Ryosuke Shichi
Dealing banks Mitsubishi UFJ Bank , Sumitomo Mitsui Bank, Resona Bank