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  • 657 1 Relative Humidity Temperature Transmitter - China

    price: contact company for price

    Product introduction

    657-1 type of transducer provides two 4-20 ma channel, used to produce two different signal output, the relative humidity of the output signal and the temperature of the output signal. The economical transmitter can provide plus or minus 2% accuracy of humidity and temperature accuracy + / - 1 ℉. 657-1 type transducer sensor consists of a high level of integration adopted by the polymer film type humidity sensor and an ultrathin membrane platinum sensors, in order to ensure high reliability and stability, and can be continuous use for several years. Stainless steel probe measurement for: 5/16 'x 10' (0.8 x 24.4 cm), use the following two alternative tools, easy to install on most of the pipeline system.

    Physical properties of

    Relative humidity range: 0-100%

    Relative humidity accuracy: + / - 2% (10-90% RH), plus or minus 3% (0-10%, and 90-100% RH)

    Operating temperature range: 32-158 ℉ (0-70 ℃)

    Temperature measurement range: 32-212 ℉ (0-100 ℃)

    Temperature accuracy: + / - 1 ℉ (plus or minus 0.5 ℃)

    Output: 2 channels, each of 4 to 20 ma, humidity channel for closed circuit

    Environmental temperature limit operation: 32-158 ℉ (0-70 ℃)

    Storage temperature limit: - 40-176 ℉ (40-80 ℃)

    Outer shell: ABS plastic

    Sensor probe: 5/16 'x 10' (0.8 x 24.4 cm) stainless steel probe

    Cable length: 48 inches (1.22 metres)

    Weight: 5.5 ounces (156 grams).

    The inventory models

    657-1 relative humidity/temperature transmitter

    No. A - 158 split flange installation tools

    No. A - 159 pipe installation gland.


    Company Contact:


    • Phone: 13120322487

    • Address: Yang Ming Square,10 Xiao Ying Rd.,Chao Yang Distri, Beijing, China

    • Email: Email


    Published date: July 16, 2013 -

    • Business Description: Beijing Jamedoorla Technology Co.,Ltd., founded in 2001, is a

      professional instrument supplier. Companies adhering to the world

      advanced technology level, it is Shared with clients continuously

      strengthen cooperation with foreign well known manufacturers, imported

      high quality instruments and recommend to the user. As the world's many

      famous instrument manufacturers in China agent (American DWYER, ARTI

      KANOMAX Japan plus field, RION) companies to provide relevant measure

      pressure, temperature and humidity, wind speed, noise, and other indoor

      environment testing instruments products. Widely used in hvac, clean

      room clean, biotechnology, electronic semiconductor chip industry, food,

      pharmaceutical, aerospace and other fields.

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