Features: ACCURATE UVB & ENVIRONMENT MONITORING: This module features high sensitivity UVB sensors and built in temperature/humidity sensors, providing precise measurements for optimal pet care and environmental monitoring with ±0.3°C temperature and ±3% humidity accuracy. CLEAR DISPLAY & LONG BATTERY LIFE: Equipped with high contrast screen for excellent readability in sunlight, powered by 2032 coin cell battery (not included) for extended usage. COMPACT DESIGN: Measuring just 7.5x3cm, this module easily fits in bird cages, reptiles terrariums or research equipment for various monitoring applications. reliability DATA FOR PET CARE: Specifically for bird keeping and reptiles husbandry, it ensures proper UVB radiation levels and ideal living conditions to promote animal health and wellbeing. MULTIPURPOSE MODULE: Beyond pet care, this precise instrument serves scientific research, greenhouse cultivation and environmental studies with stable, accurate UVB and climate data collection. Specifications: Component: PCB, metal Size:Approx.7.5x3cm/2.95x1.18inch Model:SHT40,GUVB-C21SD Sensors Detection objects: UVB rays, temperature and humidity Power supply: Powered by 2032 button battery (battery not included ) Accurate measurement: Temperature error is only ±0.3°C, humidity error is only ±3% Applicable scenarios:bird feeding,Reptiles pet breeding,Environmental monitoring, Package Includes: 1pc UVB Light Meter Module note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.