On average internal sensor batteries last around 5 years;

External sensors are user changeable and should be changed approximately every 10~12 months depending on usage.

Longevity Tip - The sensors stop transmitting after being disconnected from the tires. If you park your commercial vehicle for extended periods of time or if you store an RV for the winter, you can remove the sensors and extend battery life. The included battery life estimate is based upon full time use.

External sensors operate using a readily available CR1632.

The sensors have a 3~4% tolerance for pressure and temperature. Also note that your pressure gauge can also be incorrect. If the sensor readout is out of specifications, you can try slightly unscrewing the valve core in your valve stem so the core plunger is better pushed by the sensor, thus allowing more air to penetrate the sensor for a more accurate readout.

The rechargeable Li-ion battery in the receiver lasts several days if left on, or you can leave the receiver plugged in to your cigarette lighter outlet and leave it on continuously. The rechargeable battery allows you to remove the cigarette lighter cord to free up your cigarette lighter outlet while driving.

Yes, the display has automatic two-stage backlight. First, it ha a light sensor that only allows the light to come on when it is needed. Second, the receiver has a vibration detector that knows when you are driving, or , more importantly, when you are parked. When parked, even in the dark, it allows the backlight to turn off, but it turns back on when you start driving.

The power slide switch is located on the right side of the monitor, Slide it up to turn on the display. Slide it down to turn off the display.
Note: The side power switch will not turn off the monitor when constant power is applied to the unit.

The high-pressure alarm can not go lower than the low-pressure alarm setting. If your tire pressure settings are below 100 PSI, you must first set the low-pressure alarm settings an then set the axles’ high-pressure settings. When done, be sure to press and release the “SET” button to save all the parameter settings.

Tire pressures will lower in the evening as the ambient air temperatures decrease. In code conditions, we suggest shutting the display off until the ambient temperature rises, or you begin driving again.

Normally, the display is alarming because of the sensors are transmitting data that is out of the parameters you set up. This can happen for the following reasons:

There is a Rapid Leak in a tire;

The Tire Temperature is high;

There is a High or Low Pressure reading in a tire;

A sensor battery is almost depleted;

The display lost the signal from a sensor;

When the display alarms, an icon will blink near the bottom of the display screen and the tire in question will have its pressure or temperature blinking on the display screen as well, signifying a problem with that tire position;

When the alarm sounds, you can quiet the audible alarm, for a short while, by pushing any button on the display. The visual red light will continue to blink until the issue is resolved. We recommend checking your tires to verify the issue. If everything is okay, you may have to re-set your parameters.

The recommended high-pressure alarm should be set a 20% above your normal tire pressure you typically run in your tires. The low-pressure alarm should be set a 10% below your normal tire pressure. I areas of high ambient heat, like Arizona or Florida, the high-pressure alarm should be set to 25% above your normal operating pressure to avoid unnecessary alerts. For your temperature setting, the default of 1580F is save for all tires. Tires typically fail between 1700F~2000F.

The display has a sensor that will automatically turn on the back-light when the ambient light fades. If you want to keep the back-light on, you can cover the sensor located on the bottom left hand corner of the display.

A repeater is a device that receives data from your sensors, strengthens the signal, and pushes it forward to the display. There is no programming involved. Simply connect the repeater to a 12V power supply and it works from the moment on.

Having a repeater will only help you. We recommend installing one under the following conditions:

Any vehicle 32 feet or greater in length;

If your system is monitoring 8 or more sensors;

Using multiple wireless devices with your vehicle;

Simply direct wires to a 12 volt battery or you can splice it into a 12 volt power supply within your vehicle, commercial truck, or trailer. There is no programming or any other user interaction required.

Our repeater is fully waterproof, so it can be mounted anywhere. It is suggested that it be installed as far away from the receiver as possible to get the best range improvement. Some examples of where the repeater can be mounted are: in the engine/battery compartment of a diesel pusher coach, under the hood of your toad vehicle, under the rear of your truck, to the rear of the truck cab, or under a trailer. You can get creative. All you need is a 12 volt power lead and a ground.

No, you do not need special valve stems.

Recommendation:

External brass valve sensor - can be used with rubber or metal valve stems;

External Alu valve sensor - can be used on rubber or metal valve stems, however we do recommend metal in the case;

Flow-through sensor - we recommend installation on metal valve stems only;

Our sensors are theft resistant because the outer sensor shell spins freely on the sensor so that it cannot be removed by hand. The sensors must be installed and removed with the wrench you see in the pictures. We include 2 of these wrenches with each system.

With TM515 systems, you simply reset the alert levels as required.

In standby mode, press and hold the SET button for 3 seconds, release after the beep;

Press the SET button repeatedly to scroll through the different settings and press the + or - buttons to adjust the setting.

Press and hold the SET button again for three seconds to save the settings and exit the settings mode.

The new settings take immediate effect.

Yes, it can, and there are a couple of options:

If you are only monitoring the trailer tires and not the car tires, then just take the monitor to the appropriate vehicle;

If you are monitoring both car and trailer tires, you will need one monitor for each car. You can then register the trailer tires to both monitors. If it is a TM515 system, you only need press LINK and - buttons to stop monitoring the trailer or LINK and + buttons to start monitoring it.

Warranty is one year from date of purchase.

Heat is transferred from the tire through the metal of the wheel, and the system is sufficiently sensitive to measure the change as the tires come up to normal operating temperatures, which is always several degrees above ambient.

As the seasons change, it is useful to know the tire temperature. In cold weather, you need to have more air in the tires the get them to the correct working pressure.

Temperature measurement is extremely useful for detecting problems with wheel bearings or with brakes binding. This can lead to tire fires or to expensive bearing damage. Some HGV users have installed our systems primarily to give warning of overheating because they can’t afford the risk of a tire fire.

GOBIZ systems communicate at 433.92 MHz, and comply with strict international requirements about causing and accepting radio interference. All devices using radio frequency signals are subject to loss of signal from time and this may be more marked in certain areas, especially around military or communications installations. GOBIZ systems are optimised to overcome interference as far as possible or to minimise its impact, while providing acceptable battery life. A GOBIZ sensor measures the pressure and temperature of the tire every few seconds, while it is in motion, but unless the pressure is actually falling, a signal is transmitted to the monitor every briefly only every five or six minutes.(The exact timing varies from model to model). This is done to reduce power consumption. In the event of falling pressure, the signal is transmitted immediately and is repeated every few seconds.

The monitor displays the latest reading it has received. So if several signals are not received due to interference, it merely means that the pressure displayed is not updated for a few cycles. In the event of falling pressure, repeated transmission means that a warning will still be given within half a minute or so.

If the monitor does not receive signals from a sensor for an extended period, it displays an alert for that tire position. The exact period before this alert is given depends on the model.

For large vehicles or trailers where the transmission distance is greater than about 7m for the furthest sensor to the monitor, we recommend the use of a signal booster or repeater. This is typically positioned at the front of a trailer, where it can re-transmit the signal from the tire sensors, or in the case of a motorhome towing a car, at the rear of the motorhome. No configuration is required-it simply picks up the signal and re-transmits it automatically.

This is not really practical and the simplest way to use a single monitor on two vehicles is to switch the sensors from one vehicle to another;

The reason is because when you register additional sensors, the new sensor replaces any existing sensor in the same location. On systems designed to monitor more than four wheels, you can register additional sensors to new positions, but if you use this for two different vehicles, you will get “no-signal” error messages from the vehicle that is not in use.

Not really, sensors can be locked in position so that they require a tool to remove them. This prevents casual theft.

Corrosion occurs mostly where different metals are in contact in the presence of an electrolyte like salty water. Some specialisted tire valve stems are made of aluminium. We do not recommend using this system with this type of valve as corrosion will occur where the different metals are in contact. Recommended precautions:

Put a small amount of WD40 or silicone grease on the locking ring and on the threads of the valve stem. This film separates the different metals;

Remove the sensor once a month during winter to prevent bonding;

Remove the sensor if the vehicle is be unused for several months;

Do not use the locking rings if the vehicle is being used in extremely salty conditions, such as a boat trailer where the wheels may be immersed in the sea.

Yes, but of course, you can check the tire pressures with the monitor, so it is only necessary when air needs to be added or removed;

For heavy vehicles, we can supply systems that don’t need the tires to be removed. There use air through sensors or sensors that fit inside the tires.

Yes, Our sensors have been actively tested at speeds up to 300km/hr. GOBIZ systems are frequently used for high performance cars such as Ferrari, Porsche and Aston Martin for track and race applications where high speeds are the norm.

This is normal and nothing has gone wrong;

The monitor and sensors go into a sleep mode to conserve battery power when the vehicle is stationary. After a few minutes of driving, the system updates fully and shows the current tire pressures;

If the monitor does not receive a signal from a sensor for some time, the display for that particular sensor goes blank. If this occurs while the vehicle is moving, there is a problem receiving the signal from that tire which can sometimes be caused by temporary interference from surrounding radio signals.