ALTA Industrial Wireless Light Meter, 900MHZ

ALTA industrial wireless light meters measure the intensity of light in lux (luminescence/unit area), from 0 – 1000 lux (indoor range). Perfect for light sensitive applications like museum and art gallery light monitoring.   Monnit MNS2-9-IN-LS-LM Features 1,200+ foot range 12+ year battery life 80+ wireless sensors Bank-level AES security Up in 15 easy setup Global ready (900, 920, 868 & 433 MHz) LUX Sensor Specifications Sensing Technology: High Sensitivity Photodiode Sensor Material: Silicon Peak Wavelength: 580 nm Maximum Reverse Voltage: 6 V Maximum Power Dissipation: 40 mW Maximum Light Current: 500 uA Maximum Dark Current: 0.3 uA Maximum Rise Time: 8.5 ms Maximum Fall Time: 8.5 ms Maximum Operating Temperature Range: -30°C to +85°C Measurement Range: 0 - 1,000 LUX Variation Specifications Security: Encrypt-RF® (256-bit key exchange and AES-128 CTR) Resolution: 0.01 LUX Accuracy: 0.5% of reading Weight: 4.8 oz. (136 g) ALTA Industrial Specifications Supply Voltage: 2.0