* MAX WORKING CURRENT: EMITTER: ≤ 10 MA; RECEIVER: ≤ 30 MA * SIGNAL OUTPUT ELECTRIC STATUS: 8VP-P * SIGNAL TRANSMISSION FORMAT: MULTI-FREQUENCY IMPULSE * INDUCTION DISTANCE LESS THAN 20MM * DISTANCE OF SIGNAL TRANSMISSION: ≥3 KM * POWER SUPPLY: DC, 2 X 9V BATTERY * BATTERY LIFE: 50 HOURS CONTINUOUSLY * STORAGE TEMPERATURE: -20 ~ 50°C * OPERATING TEMPERATURE: -10 ~ 40°C * EMITTER: APPROX. 126MM(L) X 49MM(W) X 34MM(D) * RECEIVER: APPROX. 175MM(L) X 42MM(W) X 27MM(D) SPECIFICATIONS: FUNCTIONS: TEST RJ45 TWISTED-PAIR CABLE, TELEPHONE LINE MAXIMUM TEST LENGTH: 1000 FT (305M) POWER: 9V BATTERY ( NOT INCLUDED ) SIZE: 105 X 100 X 26MM WEIGHT: 124G FEATURES: TEST CORRESPONDINGLY DOUBLE-TWISTED CABLES 1, 2, 3, 4, 5, 6, 7, 8 AND GROUND CAPABLE TO JUDGE WRONG CONNECTION, SHORT CIRCUIT AND OPEN CIRCUIT CABLE TESTER FOR RJ12, RJ11, RJ45, CAT 5E, CAT 5, 10/100 BASE-T, AT&T 258 A, TIA-568A/568B .ETC IT CAN EASILY CLARIFY CABLE, CONTINUITY, OPEN AND SHORT VERIFYING CABLE