The EOS Sentry 4 is a fast, intelligent and practical device for checking your battery voltage. This handy little voltmeter is compatible with Lipo, LiFe, Li-Ion, NiMH and NiCd batteries. The Sentry 4 shows at a glance the remaining capacity in your LiPo battery pack, the cell balance, the cell voltages and the difference between the cells. A unique feature of the Sentry 4 is its stand-alone lithium battery balance and discharge mode, which is ideal for storing fully charged batteries up to 3.8V. The Sentry 4 also features a servo and ESC tester by connecting an external power supply to control and test the servo frequency, servo test range and ESC settings.
The Sentry 4 gives you all the information and tools you need to maintain the performance of your packages. Avoid costly errors and increase battery reliability by using a high quality battery tester.
2S ~ 8S Lithium battery compatible with HvLi LiPo, Standard LiPo, Li-Ion and LiFe
4S ~ 8S Ni-Cd/MH battery support
Built-in servo and ESC tester
EOS Sentry 4 displays the total battery pack voltage and a percentage bar graph for the estimated remaining capacity.
Displays minimum and maximum cell voltages and voltage difference between maximum and minimum cell.
Comfortable balance and discharge function.
Clear display and easy to use menu
Power is supplied by the battery pack, which you connect for testing purposes. No batteries required for the device.
Dimension: 85,4 x55 x 16mm
Lithium Battery Input: 2S - 8S (HvLi LiPo, Standard LiPo, Li-Ion and LiFe)
Nicd/NiMH input: 4S-8S
Setting range of the discharge cut-off: 2.000 - 4.200V
Servo test frequency setting: 50Hz, 60Hz, 100Hz, 125Hz, 200Hz, 250Hz and 300Hz
Servo test signal range setting: 500 - 2500us or 1000 - 2000us
Tone switch setting: on, off, on
This battery tester is compatible with the JST-XH Balance Adapter.
WARNING: Do not keep your battery connected to the Sentry4 for long periods of time. Since this device is powered from a battery source, parasitic removal in standby mode will consume your battery, causing your battery to discharge excessively. After discharge and storage, disconnect guard 4.
For the servo and ESC tester function, we recommend the use with 1000 - 2000 pulse settings. Please also set the frequency value to 50Hz if you are not sure which frequency your servo has.
The estimated percentage of residual capacity "%" is only a guide, so please judge by the residual voltage.
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