Description: 1. When work in places with loud noise, you can connect a 3.5mm earphone to the headset jack of receiver. 2. Do not use if the instrument is damaged or the case is fractured. 3. Do not test high voltage cable circuit(e.g.220V) 4. Without battery cover please do not use instrument. 5. We provide 12 months warranty and 2 months hassle-free return policy. 6. Operation method to judge TIP or RING line, it can also be judged whether the telephone line is idle, ringing or off-hook. 7. Battery(not include) £º Emitter: 6F22/9V; receiver: 6F22/9V Temperature Operating temperature: 32 ¡ãF ~ 104 ¡ãF, maximal 80% relative humidity (non-condensing) Storage temperature:14 ¡ãF ~ 122¡ãF, maximal 80% relative humidity (non-condensing, battery not included) Specification: Weight: 240g Size: Emitter: 5x2.5x1.2 inches Receiver: 8.1x1.6x1.2 inches Package Included: 1 x Emitter 1 x Receiver 1 x RJ11 adapter cable 1 x RJ45 adapter cable 1 x Clip adapter cable 1 x Instruction
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