1. Connecting the power, the default setting is high voltage protection voltage 270V, low voltage protection voltage
170V and working delay-time 10 seconds.
2. Press the SET key to enter the high-voltage setting page, the digital is flashing, press the + or - key to adjust the high voltage protection range.
Press the SET key again, and it enters the next low voltage value setting, the digital is flashing again, so press the + or - key to adjust the low voltage protection range.
Press the SET key again, and the page is entered the delay-time setting, press the + or - key to adjust the delay time after the power
is recovery.
Press the SET again to confirm all data are OK finally.
3. When the applied voltage is in the normal working range, the blue light will be ON;
When the product is in the protection state of too high or too low voltage, the red light will be ON and the power will be cut off automatically;
When the product is powered off because the instantaneous voltage is too high or too low, delay protection will be opened automatically, and no power output.
4. After the delay-time countdown off, the product to be resume working.
Noted: The reset voltage is automatically detected at a set value below or above 10V.
·High-voltage protection: 10V below the original settings recovery;
·Low-voltage protection: 10V above the original settings recovery.
I give 5 stars because I'm a happy return client. First one worked perfectly, I ordered 4 more units. Just set the voltage range and time as you desire albeit correctly. If you set off range, your device will either be always on or always off.
28-08-2025by Eng Victor
Verified Purchase
3 out of 5
tv/fridge guard
Very noisy could not work on TV, had to switch it with my old fridge guard. On the fridge its perfect.
11-08-2025by ismail
Verified Purchase
4 out of 5
Works well
It shows the current voltage level, so you can compare with what you've set so Incase it disconnects power you can tell it's either low or high voltage. Very nice.
18-07-2025by STAN
Verified Purchase
Focustar Surge Protectors Fridge/ TV Guard Voltage Protector HLP02 UK