1、【Advanced Sensor】This meter is equipped with advanced UV photosensitive devices without stray light, comes with an integrated UVC filter, and has good cutoff characteristics. 2、【LED Display】The instrument is featured by a clear LCD display, which can show you the UVC testing data of all types of reptile lamps you want. 3、【Easy to Use】Simply press and hold the push-button switch on the face of the unit. Aim the sensor window in the top panel of the meter directly at the UV source. Note reading on LCD and record if desired. Take several tests at the same distance and averaging, and you will get more accurate data. 4、【Long-lasting \u0026 Portable】This product uses 2 DC batteries with large capacity, which has a long standby time. In addition, the meter is small in size, so you take it with you where you go. 5、【Perfect conservation】This product encloses a rubber cover to protect the instrument well from being broken. Features: 【Advanced Sensor】This meter is equipped with advanced UV photosensitive devices without stray light, comes with an integrated UVC filter, and has good cutoff characteristics. 【LED Display】The instrument is featured by a clear LCD display, which can show you the UVC testing data of all types of reptile lamps you want. 【Easy to Use】Simply press and hold the push-button switch on the face of the unit. Aim the sensor window in the top panel of the meter directly at the UV source. Note reading on LCD and record if desired. Take several tests at the same distance and averaging, and you will get more accurate data. 【Perfect conservation】This product encloses a rubber case to protect the instrument well from being broken. 【Long-lasting & Portable】This product uses 2 DC batteries with large capacity, which has a long standby time. In addition, the meter is small in size, so you take it with you where you go. Specification: Product Name: UV Irradiance Meter Material: ABS Main Color: Purple Response Spectrum: λ=220~280nm Measuring Range: 0-1999uw/c㎡ Measurement Accuracy: 1uw/c㎡ Measurement Error: ±10% Battery: 2 * DC Battery (Not Included) Size: 165 * 75 * 30mm Weight: 125g Package Information: Package Size: 200*110*40mm Package Weight: 240g Packing List: 1 * UV Irradiance Meter 1 * Manual 1 * UV Irradiance Meter 1 * Manual