{"id":162,"date":"2025-11-17T16:38:41","date_gmt":"2025-11-17T16:38:41","guid":{"rendered":"https:\/\/hamtechtechnologies.com\/?post_type=product&p=162"},"modified":"2025-11-17T16:38:41","modified_gmt":"2025-11-17T16:38:41","slug":"zmpt101b-ac-voltage-sensor","status":"publish","type":"product","link":"https:\/\/hamtechtechnologies.com\/index.php\/product\/zmpt101b-ac-voltage-sensor\/","title":{"rendered":"ZMPT101B AC Voltage Sensor"},"content":{"rendered":"

The ZMPT101B AC Voltage Sensor Module<\/strong> is a compact, high-accuracy voltage measurement board designed for single-phase AC voltage sensing up to 250V<\/strong>. It features the ZMPT101B precision voltage transformer<\/strong> and a high-accuracy operational amplifier circuit<\/strong>, enabling clean and stable signal sampling for microcontrollers.<\/p>\n

This module outputs a sine-wave signal<\/strong> centered around a DC bias, making it easy to interface with analog-to-digital converters (ADC). The onboard potentiometer allows you to adjust the output amplitude<\/strong> without affecting the signal’s center value, giving flexible calibration for your application.<\/p>\n

It is widely used in energy meters, power monitoring, smart home systems, voltage protection circuits, IoT data logging<\/strong>, and custom AC measurement projects.<\/p>\n

\n

Key Features:<\/strong><\/h2>\n
    \n
  • \n

    Voltage Measurement Range:<\/strong> AC 0\u2013250V<\/p>\n<\/li>\n

  • \n

    Voltage Transformer:<\/strong> Precision ZMPT101B<\/p>\n<\/li>\n

  • \n

    Output Signal:<\/strong> Sine wave (biased around mid-point DC level)<\/p>\n<\/li>\n

  • \n

    Sampling Circuit:<\/strong> High-precision op-amp with compensation<\/p>\n<\/li>\n

  • \n

    Supply Voltage:<\/strong> 5V\u201330V<\/strong><\/p>\n<\/li>\n

  • \n

    Adjustable Sensitivity:<\/strong> Onboard multiturn potentiometer<\/p>\n<\/li>\n

  • \n

    Output waveform amplitude adjustable<\/strong> without shifting center value<\/p>\n<\/li>\n

  • \n

    Filtering Option:<\/strong> Add a capacitor (~105pF) at OUT to remove DC bias<\/p>\n<\/li>\n

  • \n

    PCB Dimensions:<\/strong> 49.5 \u00d7 19.4 mm<\/strong><\/p>\n<\/li>\n<\/ul>\n

    \n

    Applications:<\/strong><\/h2>\n
      \n
    • \n

      AC mains voltage monitoring<\/p>\n<\/li>\n

    • \n

      Smart energy meters<\/p>\n<\/li>\n

    • \n

      IoT home automation systems<\/p>\n<\/li>\n

    • \n

      Over\/under-voltage protection circuits<\/p>\n<\/li>\n

    • \n

      Real-time energy monitoring<\/p>\n<\/li>\n

    • \n

      Power quality analysis<\/p>\n<\/li>\n

    • \n

      Industrial automation<\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

      A high-precision AC voltage sensing module based on the ZMPT101B transformer and onboard amplifier ideal for safe measurement of AC mains up to 250V for Arduino, ESP32, and IoT energy-monitoring systems.<\/p>\n","protected":false},"featured_media":261,"comment_status":"open","ping_status":"closed","template":"","meta":{"postBodyCss":"","postBodyMargin":[],"postBodyPadding":[],"postBodyBackground":{"backgroundType":"classic","gradient":""}},"product_brand":[],"product_cat":[120,22,119],"product_tag":[122,124,123,121],"class_list":{"0":"post-162","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-power-energy-monitoring-modules","7":"product_cat-sensors","8":"product_cat-voltage-sensors","9":"product_tag-ac-voltage-sensor","10":"product_tag-energy-monitoring","11":"product_tag-mains-voltage-detection","12":"product_tag-zmpt101b","14":"first","15":"instock","16":"taxable","17":"shipping-taxable","18":"purchasable","19":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/product\/162","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/comments?post=162"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/media\/261"}],"wp:attachment":[{"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/media?parent=162"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/product_brand?post=162"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/product_cat?post=162"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/product_tag?post=162"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}