HT580 User Reference Guide Unitech Electronic CO. LTDUnitech Part Number: 400412 51.3 FeaturesHT580 includes the following features: Operation System: Proprietary Memory: 512KB Display: 128 x 64 pixel Keypad: 18-key keypad Data Capture: CCD Communication: Bluetooth / RS232 / USB1.4 Technical SpecificationsModel HT580Dimensions 123mm x 55mm x 25mm (4.8” x 2.2” x 1.0”)Weight 150g (5.3 oz)Drop Specification 1.2M (4 foot) free drop to concrete floorDisplay 128 x 64 pixels; 16 x 8 characters or 12 x 4 charactersBattery One 3.7V 600mAH Li-ion batteryEnvironmental Sealing IP42Operation Temperature 0°~50°C (32°~122° F)Storage Temperature -20°~70°C (-4°~158° F)Humidity 20% to 85% RH; not condensedElectrostatic Discharge (ESD) 4 KV contact discharge8 KV air dischargeBack-Lit Display YesKeypads 18 alphanumeric keys including one scan triggerCPU ST UPSD3354DVOperating System Proprietary (C Language)Memory 512KB Flash ROMApplication Development EZ JobCommunication RS232 / USB1.1 / Bluetooth / ModemBattery Life Up to 8 hoursSymbologies China Postal Code, Codabar, Code 32, Code 39, Code 93,Code 128, Interleaved 2 of 5, MSI, UPC/EANBuzzer Yes, over 75 dBOne LED Reading – green color