The Extech LT505 autoranging pocket light meter offers wide light intensity ranges measuring up to 40,000Fc (400,000Lux) with high resolution to 0.01Fc (0.1Lux) | Extech Instruments
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The Extech LT300 light meter can determine whether you have adequate illumination to protect workers, students, visitors, patients and more! | Extech Instruments
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How to use a moisture meter from Extech! Get yours: http://bit.ly/2cC4jzW | Extech Instruments
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เครื่องวัดแสง LED Light Meter EXTECH รุ่น LT40 ●เหมาะสำหรับวัด LED ประเภทสีขาว, Daylight, Cool white, Warm white ●ช่วงการวัดแสง LED 0 ถึง 400,00 ลักซ์ (Lux) ●ความแม่นยำ (Basic Accuracy) ±3% ●แจ้งเตือนเมื่อระดับแบตเตอรี่ต่ำ Low battery indicator ●จอแสดงผลแบบ LCD Display 4000 count ●ฟังชั่น Min/Max Average ●ปิดเครื่องอัตโนมัติเมื่อไม่ใช่งาน Auto Power off ●หน่วยการวัดเป็นลักซ์ (Lux) หรือ ฟุตแคนเดิล (Foot-cadle) ●ขนาดเครื่อง 133x48x23 มิลลิเมตร ●น้ำหนัก 250 กรัม ●ในชุดประกอบด้วย built-in sensor wit
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