{"id":44993,"date":"2026-06-17T09:39:15","date_gmt":"2026-06-17T09:39:15","guid":{"rendered":"https:\/\/proair.ee\/toode\/sl400-noise-level-meter-with-calibration-certificate\/"},"modified":"2026-06-17T09:39:15","modified_gmt":"2026-06-17T09:39:15","slug":"sl400-noise-level-meter-with-calibration-certificate","status":"publish","type":"product","link":"https:\/\/proair.ee\/en\/toode\/sl400-noise-level-meter-with-calibration-certificate\/","title":{"rendered":"SL400 Noise Level Meter with Calibration Certificate"},"content":{"rendered":"<h2>SL400 Noise Level Meter with Calibration Certificate<\/h2>\n<p>As a Class 2 precision sound level meter, the SL400 is ideal for documenting machine or environmental noise and for conducting measurements in the workplace.<\/p>\n<p>The four-digit display of measured values, along with an additional bar graph, is very easy to read in any environment thanks to the switchable LCD backlight.<\/p>\n<p>With A- and C-weighting, fast\/slow averaging, and many other practical features, the SL400 sound level meter is the ideal solution for demanding sound level measurements.<\/p>\n<p>Its convenient size, light weight, and key layout optimized for one-handed operation make this measuring device an ideal staple for standard measurements in the fields of industry, labor, and environmental protection.<\/p>\n<p>The SL400 is also equipped with a real-time logging function and has a data memory capable of storing up to 32,700 measured values. The collected data can be easily transferred to a computer via USB for software-based analysis. The SL400 can also be mounted on the included mini-tripod for logging or long-term measurement.  <\/p>\n<p>In addition, the integrated 3.5 mm jack provides connectivity options for frequency analyzers or XY recorders.<\/p>\n<p><strong>Advantages:<\/strong><\/p>\n<ul>\n<li>Accuracy Class 2 in accordance with the IEC 61672 standard<\/li>\n<li>Weighting the frequency according to characteristics A and C.<\/li>\n<li>Displaying the Maximum and Minimum Values<\/li>\n<li>Memory for up to 32,700 measured values<\/li>\n<li>Assessing Switching Time (Fast \/ Slow)<\/li>\n<li>Screen Backlight<\/li>\n<li>BarGraph Screen<\/li>\n<li>1\/4-inch tripod thread<\/li>\n<li>Data Logging Function<\/li>\n<li>Analysis software<\/li>\n<li>USB connection and 3.5 mm jack<\/li>\n<li>Calibration certificate included<\/li>\n<\/ul>\n<p><strong>Technical Specifications:<\/strong><\/p>\n<ul>\n<li>Measurement range: 30\u2013130 dB<\/li>\n<li>Accuracy: IEC 61672-1 Class 2, ANSI S1.4 Type 2 <\/li>\n<li>Resolution: 0.1 dB<\/li>\n<li>Frequency range: 31.5 Hz \u2013 8 kHz<\/li>\n<li>Dynamic range: 50 dB<\/li>\n<li>Partial measurement range (low): 30 &#8230; 80 dB<\/li>\n<li>Partial measurement range (average): 50 &#8230; 100 dB<\/li>\n<li>Partial measurement range (high): 80 &#8230; 130 dB<\/li>\n<li>Partial measurement range (automatic): 30 &#8230; 130 dB<\/li>\n<li>Response time: 500 ms<\/li>\n<li>Time weighting: slow (S) 1 s, fast (F) 125 ms<\/li>\n<li>Microphone: electric condenser microphone<\/li>\n<li>Power supply: 9 V block battery IEC 6LR61 \/ 6P22<\/li>\n<li>Operating time without replacing the battery:&gt; 30 h<\/li>\n<li>Operating conditions: 0 to 40 \u00b0C, 10\u201390% RH<\/li>\n<li>Dimensions (W x L x H): 255 x 63 x 45 mm<\/li>\n<li>Weight: 305 g<\/li>\n<\/ul>\n<p>\u00bbPackage contents: measuring device, including a calibration certificate, mini stand, USB cable, analysis software, user manual, and carrying case<\/p>\n","protected":false},"excerpt":{"rendered":"<h3>SL400 Noise Level Meter with Calibration Certificate<\/h3>\n<ul>\n<li>Accuracy Class 2 in accordance with the IEC 61672 standard<\/li>\n<li>Weighting the frequency according to characteristics A and C.<\/li>\n<li>Displaying the Maximum and Minimum Values<\/li>\n<li>Memory for up to 32,700 measured values<\/li>\n<li>Assessing Switching Time (Fast \/ Slow)<\/li>\n<li>Screen Backlight<\/li>\n<li>BarGraph Screen<\/li>\n<li>1\/4-inch tripod thread<\/li>\n<li>Data Logging Function<\/li>\n<li>Analysis software<\/li>\n<li>USB connection and 3.5 mm jack<\/li>\n<li>Calibration certificate included<\/li>\n<\/ul>\n","protected":false},"featured_media":44994,"template":"","meta":{"_acf_changed":false,"_seopress_titles_title":"SL400 Noise Level Meter with Calibration Certificate","_seopress_titles_desc":"SL400 Noise Level Meter with Calibration Certificate","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"none","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":301,"_seopress_analysis_target_kw":""},"product_brand":[],"product_cat":[975,981],"product_tag":[],"class_list":["post-44993","product","type-product","status-publish","has-post-thumbnail","product_cat-measuring-instruments","product_cat-noise-meter","first","instock","sale","taxable","shipping-taxable","purchasable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/proair.ee\/en\/wp-json\/wp\/v2\/product\/44993","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/proair.ee\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/proair.ee\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/proair.ee\/en\/wp-json\/wp\/v2\/media\/44994"}],"wp:attachment":[{"href":"https:\/\/proair.ee\/en\/wp-json\/wp\/v2\/media?parent=44993"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/proair.ee\/en\/wp-json\/wp\/v2\/product_brand?post=44993"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/proair.ee\/en\/wp-json\/wp\/v2\/product_cat?post=44993"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/proair.ee\/en\/wp-json\/wp\/v2\/product_tag?post=44993"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}