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. User customization allows you to set the frequency of readings and the ability to set thresholds for notifications and alerts by SMS text, email or voice call from the system.   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 - 3.8 VDC Battery Type: Replaceable 3.6V, 1800mAH (single AA sized) Battery Life: At 1 hour heartbeat setting, battery will last up to 10 years.** Max Operating Temperature: -40° to 85°C (-40° to 185°F) Optimal Battery Operating Temperature: +10°C to +50°C (+50°F to +122°F) Solar Power Option: 3.0 VDC Solar Panel 600 mAH Rechargeable Battery (>2000 Charge Cycles - 80% of Initial Capacity)Charging Temperature Range: 0° to 45°C (32° to 113°F) Max Temperature Range: -20° to 60°C (-4° to 140°F) Enclosure Material: IP65, NEMA 4X, CE rated, sealed, weatherproof enclosure UL Rating: UL Listed to UL508-4x specifications (File E194432) Dimension: 3.7 in x 2.32 in x 1.38 in ALTA 900 MHz Specifications Operating Frequency: 900 MHz Operating Frequency Certifications: Complies with Part 15 of the FCC Rules. (FCC ID: ZTL-G2SC1)Complies with Industry Canada standards. (IC: 9794A-G2SC1) Device Range: Device Range Up to 1,200 ft. non-line-of-sight, wireless device range* Security: Encrypt-RF® (Diffie-Hellman Key Exchange + AES-128 CBC)