Product Details  CATV Singla Level Meter for Analog Signal.  LM868/LM8685 SPECIFICATIONS: Frequency and Level:  Frequency Range: 46 ~ 870MHz(HT868)  5 ~ 870MHz(HT8685)  Resolution Bandwidth: 280KHz ± 50KHz  Channels: All user Channels   Level Range: 30dBμV~115dBμV  Accuracy: ±1.5dBuV(under room temperature)  ±2.5dBuV(- l0oC ~ +50oC)  Input Impedance: 75Ω(BNC or F connector)  Wave detection: Peak value Auto Scan Testing:  Max Channel Scan: 125 Channels  Scan Range: All Channels within 46 ~ 870MHz  Scan Speed: 30 Channels/Min  Memory Groups: 13 Groups(00 ~ 12) Each group store Max 100 Channels. Voltage:  Voltage Range: 0 ~ 100VAC  Accuracy: ±2.0V  Resolution: 0.1V C/N (only for reference):  Level Range: 80dBuV ~ 105dBuV Others:  Dimension: 268mm x305mm X 143mm  Weight: 7.12Kg (without charger)  Working Temperature: -10 oC ~ + 40oC  Display LCD: 2X16 big charactor LCD with back light  WB CRT: 5.6inch Power:  DC Supply: DC 12V/3200mAh rechargeable battery  AC Supply: AC 220V/50Hz±10%  Battery working hours: longer than 7.0 hours at continuous working mode(close WB CRT)  longer than 2.0 hours at continuous working mode(switch on WB CRT)  Recharging hours: 12 ~ 14 hours. Accessories:  Battery Charger: charger 1pc  RF Input connector: F type 2pcs  User Manual: 1 copy