UNI-T A37 Carbon Dioxide Monitor

Description

UNI-T A37 Carbon Dioxide Monitor The UNI-T A37 is a compact NDIR-based Carbon Dioxide monitor designed to continuously track indoor air quality. Its LCD interface simultaneously displays CO₂ concentration, temperature, humidity, and date/time, offering a comprehensive view of environmental conditions. The device also uses intuitive emoticons to represent air quality levels at a glance helping users quickly assess whether ventilation is needed. In operation, the A37 updates CO₂ readings every 3 seconds and triggers both audio and visual alarms including a red backlight when levels exceed approximately 1,000 ppm. Its automatic baseline correction (ABC) feature recalibrates in fresh-air conditions to maintain accuracy and reliability over time. Designed for practical daily use, its built-in 3.7 V rechargeable Li-ion battery powers over 10 hours of continuous measurement. The monitor includes auto power-off, low battery indication, and a convenient Micro-USB charging port. Lightweight (around 195 g) and compact (75 × 55 × 130 mm), it comes in a protective case and is suitable for diverse indoor settings from offices and schools to homes and vehicles. Features: Automatic baseline correction. Audible and visual alarm. Low battery indication. Auto power off. Backlight. Specifications: Specifications Range Resolution Accuracy Carbon dioxide: 400ppm~5000ppm 1ppm ±(5%rdg + 50ppm) from 400ppm~2000ppm (at ambient temperature and humidity) Temperature: -10.0℃~50.0℃ 0.1℃ Accuracy: ±1℃ Relative humidity: 0%RH~99%RH 1%RH Accuracy: ±5%RH (10%RH~90%RH) at 25℃ Features ABC: Automatic baseline correction √ Audible and visual alarm: √ Sensor type: NDIR (no-dispersive infrared) CO2 sensor √ Response time: √ Date/time: √ Low battery indication: √ Auto power off: <2minutes √ Backlight: √ Operating temperature: 0℃~50℃, 0%RH~85%RH √ Storage temperature: -20℃~60℃, 0%RH~95%RH √ General Characteristics Power: 3.7V DC Li-ion battery/ Micro USB charging port Display: 42mm x 65mm Product color: White and grey Product net weight: 195g Product size: 75mm x 55mm x 130mm Applications: Indoor Air Quality (IAQ) Assessment in Offices and Schools. HVAC System Ventilation Efficiency Verification. Greenhouse and Agricultural Grow Room Climate Control. Workplace Safety Monitoring in Confined Spaces. Home Environment Health and Comfort Optimization. Library and Archive Preservation Environment Monitoring. Package Contents: 1x A37 CO₂ Monitor 1x Protective case 1x USB (Micro-USB) cable 1x English user manual Documents: Datasheet User Manual

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