Feature 1[Waterproof Shell] The shell of the illuminance transmitter is waterproof, and can convert any standard 485 signal into a radio signal transmission, to meet your various need. 2[Two Channel Communication] Support two channel simultaneous communication, two different communication rates can be set to ensure short distance high speed communication, and long distance reliable communication. 3[Real Time Monitoring] Illuminance sensor transmitter can monitor its own power, signal and real time data in real time, and upload it through wireless communication. 4[Unique Encryption Technology] Wireless illuminance transmitter adopt unique encryption technology to ensure that it is not monitored, to ensure reliable control. 5[Stable Performance] The data is uploaded every 5 minutes, can be used continuously for 3 years, and the performance is stable, so you can use it with confidence.Item Type: Illuminance TransmitterMaterial: ABSProduct Size: Approx. 11 x 8.5 x 5 cm / 4.3 x 3.3 x 2 inBattery: 3.6V lithium battery 19000mah (Battery Included)Accuracy: 7% (25)Luminous Flux Range: 0-200000LxLong Term Stability: 5%/yearResponse Time: 1sOutput Signal: Wireless spread spectrum signalTransmission Distance: Indoor can worn 3-4 concrete wall, outdoor viewing distance 3000MWeight: Approx. 288g / 10.2oz .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Illuminance Transmitter1 x Antenna1 x Matching Battery4 x Accessories1 x Manual