Product Description The monitor alarms when the tire pressure is beyond the pressure threshold value of 60-175 PSI, please set your desired alarming range by following steps:How to set the sensors into correct tire? There were 3 buttons on the LCD display: "^" "SET" "v"1. Long press "v" to turn on the LCD display.2. Long press "SET" untile there was "BAR PSI" and a truck image only.3.Click(very short click, not long press) "v" four times, until there was a "PSI" and 100 on the screen.4.Click "SET"(not long press), the "60" flashs.5.Click "v" to turn down to 55 or your desired data.6. Click "SET", the low PSI was set.7. Long press "SET", and long press "v" to turn down the monitor.Switching from BAR to PSI, please try the following steps:There were 3 buttons on the LCD display: "^" "SET" and "v"1. Long press "v" for 5-6 seconds to turn on the LCD display.2. Long press "SET" until there was "BAR PSI" and a truck image only3. Short click "SET' button, "BAR" characters flashs on the screen, click "^" or "v", "PSI" flashs4. Click "SET" to confirm, then it was PSI.Note: Please power on the monitor first. Otherwise, The pressure and degree may show up on the monitor after a long time.Displayer Parameter ： Working Temperature:(-20â"ƒ-80â"ƒ)Storage Temperature:(-30â"ƒ-85â"ƒ)Input Voltage:DC8V-30VTransmitting Frequency:433.92MHzSize( L*W*H )mm:86*57*26mmWeight:96gSensor Parameter ：Working Temperature:(-20â"ƒ-100â"ƒ)Storage Temperature:(-20â"ƒ-100â"ƒ)Pressure Range:0-217.5psi（0-15bar）Lower limmit:6.9 BarPressure Precision:±1.5PSI（±0.1bar）Temperature Precision:±3â"ƒBattery model: CR1632Transmitting Frequency:433.92MHzBattery Life:>2 yearsSize:Height:15mm;Diameter:23mmWeight:10g
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