Instruction manual Please read this manual carefully before using Temperature & humidity meter. The instruction will show you how to use this premium quality and accurate meter distinctly. Temperature & humidity meter widely apply on laboratory, warehouse, air conditioning system and quality control etc. 1. Specification: 1) LCD display reading; 2) Measurement range: Temperature: -10°C~ +50°C / 14°F~ +122°F Humidity: 10%~ 99% 3) Accuracy: Temperature: ±1°C (±1.5°F) Humidity: ±3% (in 25°C, 30~95%RH) ±5% (in 25°C, 10~30%RH) 4) Response time: Temperature: 1°C/10 sec (approx.) Humidity: 45%~99%RH≤3 minutes 99%~45%RH≤5 minutes 5) Resolution: Temperature:0.1°C / 0.1 °F Humidity: 0.1% 6) Sampling time: 2 times/sec 7) Operation conditions: Temperature: -0°C~ +40°C Humidity: < 95% 8) Power supply: 9V alkali battery 9) Storage condition: Temperature: -10°C~ +60°C Humidity: <70% 2. Diagram description: 1) Temperature and humidity sensor 2) LCD 3) ON/OFF button 4) Temperature and humidity switch button 5) Hold reading button 6) Battery compartment 7) Battery door