{"product_id":"vivosun-vpd-thermometer-handheld-infrared-laser-for-leaf-vpd-temp","title":"VIVOSUN VPD Thermometer - Handheld Infrared Laser for Leaf VPD \u0026 Temp","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eIn grow rooms, greenhouses, and climate-controlled spaces, precise readings can make a real difference. The VIVOSUN VPD Thermometer is a handheld infrared instrument that pairs fast measurements with targeted data about leaf and air conditions. Whether you’re tuning a tent, maintaining a greenhouse, or monitoring an HVAC loop, this tool provides actionable data in a compact package.\u003c\/p\u003e\n\n\u003ch3\u003eWhat it measures and why it matters\u003c\/h3\u003e\n\u003cp\u003eDesigned to capture a broad range and essential variables, the device reports temperatures from -50 to 480°C (-58 to 896°F) with rapid 5-second readings. It tracks leaf temperature, air temperature, ambient humidity, and leaf VPD so you can observe how the space and the canopy interact. This helps you adjust conditions to support steady growth and consistent nutrient uptake.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLeaf temperature, air temperature, and humidity readings are available in a single glance.\u003c\/li\u003e\n  \u003cli\u003eLeaf VPD data helps you assess the canopy environment with minimal setup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eEmissivity control and safe-distance measurements\u003c\/h3\u003e\n\u003cp\u003eEmissivity can be fine-tuned from 0.1 to 1.0, enabling more accurate readings across different surfaces. The 12:1 distance-to-spot ratio means you can measure from a safe distance while targeting precise zones in crowded spaces.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAdjustments support readings on metal, plastic, soil, and foliage alike.\u003c\/li\u003e\n  \u003cli\u003eMeasure from a distance to avoid disturbing delicate setups.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDesign and usability that fit your workflow\u003c\/h3\u003e\n\u003cp\u003eA large backlit LCD stays readable in dim zones, so you won’t miss data during late cycles or night checks. The device stores up to five past readings for quick comparison, and it automatically powers off after 30 seconds to conserve battery life.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e13-point laser helps you pinpoint the exact spot you’re measuring.\u003c\/li\u003e\n  \u003cli\u003eVisual alerts flag readings outside your defined range for fast adjustments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePractical, real-world benefits\u003c\/h3\u003e\n\u003cp\u003eUse cases span grow tents, greenhouses, and climate-controlled rooms, with relevance to HVAC workflows and other settings that require stable environmental conditions. It also serves as a quick non-contact checker during setup, maintenance, and routine checks.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What readings does the VIVOSUN VPD Thermometer provide?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It measures leaf and ambient temperature, humidity, and leaf VPD, with quick 5-second results.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How does emissivity adjustment improve accuracy?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Adjust emissivity from 0.1 to 1.0 to suit different surfaces and get more reliable readings.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"VIVOSUN","offers":[{"title":"Default Title","offer_id":45760300679354,"sku":"B0DP28GKWJ","price":75.38,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/3536\/8890\/files\/vivosun-vpd-thermometer-handheld-front-view.jpg?v=1775598524","url":"https:\/\/gardencanada.ca\/products\/vivosun-vpd-thermometer-handheld-infrared-laser-for-leaf-vpd-temp","provider":"Garden Canada","version":"1.0","type":"link"}