1. Light,temperature and humdity measurement 2. Lux and Fc unit switchable 3. Celsius and Fahrenheit switchable 4. Large LCD with Backlight 5. Max,Min and data hold Function<br><br>Detachable Sensor. Time and date display. Low Power Consumption. Auto power off (after 5minutes) and Disable sleep mode. Light measure range: 0.1 to 400,000 Lux(Fc switchable) Accuracy:±4%(0.1 to 10,000Lux);±10% above 10,000Lux Resolution:1 Lux/0.1FC Sampling:0.5sec Temperature range:-10℃-50℃(14℉ to 122℉) Accuracy:±1℃/±1℉ Humidity range:20%-90%RH Accuracy:±5% Operation temperature:0 to 50℃(32℉ to 122℉) Operation humidity:10 to 90%RH Storage temperature:-10℃ to 60℃(14℉ to 140℉) Storage humidity:10 to 75%RH Power Supply:3xAAA batteries(Not included batteries) Colour:As Shown Material:ABS<br><br>Package Contents: 1 * Illuminance meter<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.