{"id":44074,"date":"2024-12-06T10:37:28","date_gmt":"2024-12-06T09:37:28","guid":{"rendered":"https:\/\/beteccontrols.nl\/producten\/co2-transmitter-hdh\/"},"modified":"2026-05-24T11:58:18","modified_gmt":"2026-05-24T09:58:18","slug":"co2-transmitter-hdh","status":"publish","type":"product","link":"https:\/\/beteccontrols.nl\/en\/products\/co2-transmitter-hdh\/","title":{"rendered":"CO2 Transmitter HDH | produal"},"content":{"rendered":"
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HDH Transmitters \u2013 Precision in CO2 and Temperature Measurements<\/strong><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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The HDH transmitters<\/strong> are specifically designed for measuring<\/strong> and controlling<\/strong> carbon dioxide concentration (CO2)<\/strong> and temperature<\/strong> in indoor spaces<\/strong>. These advanced sensors ensure accurate measurements, essential for applications in ventilation and air handling systems where air quality and temperature are crucial.<\/p>\n

With the ABCLogic™ self-calibration method<\/strong>, possible long-term Sensor drift<\/strong> is eliminated, ensuring reliable and stable performance<\/strong> over the long term. In addition, the controller settings<\/strong> and option limits<\/strong> can be easily adjusted using the ML-SER<\/strong> tool, ensuring flexibility<\/strong> and convenience<\/strong>.<\/p>\n

features<\/h3>\n
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  • Measurement of CO2 concentration and temperature for precise air quality control.<\/li>\n
  • ABCLogic™ self-calibration for accurate measurements without long-term drift.<\/li>\n
  • Settings and option limits adjustable via the ML-SER tool for flexible configuration.<\/li>\n
  • Ideal for ventilation and air handling systems in commercial and industrial environments.<\/li>\n<\/ul>\n

    The HDH transmitters<\/strong> provide reliable measurement and control solutions<\/strong> for optimal control of air quality<\/strong> and temperature<\/strong>, with a long service life and minimal maintenance requirements.<\/p>\n<\/div>\n

    Technical data<\/h2>\n
    \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    Additional measurements<\/td>\nNo additional measurements<\/td>\n<\/tr>\n
    Power supply<\/td>\n24 Vac\/dc (22…28 V), < 2 VA<\/td>\n<\/tr>\n
    Time constant<\/td>\n< 2 minutes<\/td>\n<\/tr>\n
    CO\u2082 measuring range<\/td>\n0…2000 ppm<\/td>\n<\/tr>\n
    CO\u2082 measuring accuracy<\/td>\ntyp. \u00b140 ppm + 3 % of value<\/td>\n<\/tr>\n
    Temperature measuring range<\/td>\n0…50 \u00b0C<\/td>\n<\/tr>\n
    Temperature measuring accuracy<\/td>\n\u00b10.5 \u00b0C<\/td>\n<\/tr>\n
    CO\u2082 output<\/td>\n0…10 Vdc, 2 mA<\/td>\n<\/tr>\n
    Temperature output<\/td>\n0…10 Vdc, 2 mA<\/td>\n<\/tr>\n
    Relay output<\/td>\nNone<\/td>\n<\/tr>\n
    IP protection class<\/td>\nIP20<\/td>\n<\/tr>\n
    Ambient temperature<\/td>\n0…50 \u00b0C<\/td>\n<\/tr>\n
    Ambient humidity<\/td>\n0…85 %rH<\/td>\n<\/tr>\n
    Product dimensions<\/td>\n87 x 86 x 30 mm<\/td>\n<\/tr>\n
    Mounting<\/td>\nOn the wall or on a flush-mounting box (screw hole spacing: 60 mm)<\/td>\n<\/tr>\n
    Material<\/td>\nABS plastic<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    Available versions<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    Model<\/th>\nDescription<\/th>\n<\/tr>\n
    Category<\/th>\nModel<\/th>\nDescription<\/th>\n<\/tr>\n
    HDH-PIR series<\/strong><\/td>\nHDH-PIR (1135240)<\/td>\nCO\u2082 + temperature + presence<\/td>\n<\/tr>\n
    HDH-RH-PIR (1135250)<\/td>\nCO\u2082 + temperature + humidity (%rH) + presence<\/td>\n<\/tr>\n
    HDH-M-PIR (1135260)<\/td>\nCO\u2082 + temperature + presence + modbus<\/td>\n<\/tr>\n
    HDH-M-RH-PIR (1135270)<\/td>\nCO\u2082 + temperature + humidity (%rH) + presence + modbus<\/td>\n<\/tr>\n
    With display (N models)<\/strong><\/td>\nHDH-PIR-N (1135241)<\/td>\nCO\u2082 + temperature + presence + display<\/td>\n<\/tr>\n
    HDH-RH-PIR-N (1135251)<\/td>\nCO\u2082 + temperature + humidity (%rH) + presence + display<\/td>\n<\/tr>\n
    HDH-M-PIR-N (1135261)<\/td>\nCO\u2082 + temperature + presence + modbus + display<\/td>\n<\/tr>\n
    HDH-M-RH-PIR-N (1135271)<\/td>\nCO\u2082 + temperature + humidity (%rH) + presence + modbus + display<\/td>\n<\/tr>\n
    Passive models<\/strong><\/td>\nHDH-Passive<\/td>\nCO\u2082 and temperature, with passive temperature measurement (e.g. Pt1000 Sensor) for simple applications<\/td>\n<\/tr>\n
    Accessories and options<\/strong><\/td>\nPotentiometers<\/td>\nActive (HD-PU) and passive (HD-P)<\/td>\n<\/tr>\n
    Indication LEDs<\/td>\nFor CO\u2082 level (HD-AL3)<\/td>\n<\/tr>\n
    Relay output<\/td>\n(HD-R)<\/td>\n<\/tr>\n
    Configuration tool<\/td>\nML-SER for settings and calibration<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

    The HDH transmitters<\/strong> are specifically designed for measuring<\/strong> and controlling<\/strong> the carbon dioxide concentration (CO2)<\/strong> and temperature<\/strong> in room spaces<\/strong>. These advanced sensors provide accurate measurements, essential for applications in ventilation and air handling systems, where air quality and temperature are crucial.<\/p>\n","protected":false},"featured_media":44075,"template":"","meta":[],"pwb-brand":[7215],"product_brand":[],"product_cat":[6101,5193],"product_tag":[9232,9227,9230,9228,9231,9224,9229,9225],"class_list":{"0":"post-44074","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"pwb-brand-produal","7":"product_cat-room-temperature-controllers","8":"product_cat-sensors-controllers","9":"product_tag-hdh","10":"product_tag-hdh-m-pir-2","11":"product_tag-hdh-m-pir-n","12":"product_tag-hdh-m-rh-pir","13":"product_tag-hdh-m-rh-pir-n","14":"product_tag-hdh-pir","15":"product_tag-hdh-pir-n-hdh-rh-pir-n","16":"product_tag-hdh-rh-pir","18":"first","19":"instock","20":"shipping-taxable","21":"purchasable","22":"product-type-simple"},"brands":[{"id":7215,"name":"Produal","slug":"produal"}],"_links":{"self":[{"href":"https:\/\/beteccontrols.nl\/en\/wp-json\/wp\/v2\/product\/44074","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/beteccontrols.nl\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/beteccontrols.nl\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/beteccontrols.nl\/en\/wp-json\/wp\/v2\/media\/44075"}],"wp:attachment":[{"href":"https:\/\/beteccontrols.nl\/en\/wp-json\/wp\/v2\/media?parent=44074"}],"wp:term":[{"taxonomy":"pwb-brand","embeddable":true,"href":"https:\/\/beteccontrols.nl\/en\/wp-json\/wp\/v2\/pwb-brand?post=44074"},{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/beteccontrols.nl\/en\/wp-json\/wp\/v2\/product_brand?post=44074"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/beteccontrols.nl\/en\/wp-json\/wp\/v2\/product_cat?post=44074"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/beteccontrols.nl\/en\/wp-json\/wp\/v2\/product_tag?post=44074"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}