I. Specifications
Main functions:
• Display of time in 12- and 24-hour formats
• Measurement of temperature and humidity
• Calendar: date, day of the week
The clock supports voice control function: the device responds to sounds louder than 60 decibels.
Three display modes:
1 - date, time and temperature alternate;
2 - selected mode is displayed;
3 - the clock shows only time and temperature.
The VST-864 clock can display temperature in Celsius and Fahrenheit.
Operating voltage: DC 5V / 500 mA.
Powered by four AAA batteries.
.II. Display and button labels
Display symbols
Button labels
• The SET button switches alarm modes and changes the type of date and time display.
• The UP button in settings increases the selected parameter value by one step.
• The DOWN button in settings decreases the selected parameter value by one step. Pressing in normal mode enables/disables the voice activation function. Long press switches the temperature display mode (Celsius/Fahrenheit).
• The RESET button restarts the device.
.III. Instructions for setting the VST-864 clock
Setting the time and alarm
A. Setting the time. In time display mode, long pressing the SET button switches the time format (12/24). Once the digits begin flashing, press UP/DOWN to select, then press SET to enter time setting mode. Press UP/DOWN to select the required hour; press SET again to move to minute setting, use UP/DOWN to select minutes, press SET to finish and save the settings.
B. Setting the date and alarm. In time display mode, quick press SET to switch to date display mode. During date display, hold SET to enter setup; when the year starts flashing, use UP/DOWN to adjust; press SET again - the month starts flashing, adjust with UP/DOWN. Press SET again for day setting, adjust with UP/DOWN, then press SET to finish.
To set alarm 1 (A1), press SET, then press UP to enable alarm 1 (A1). ON means enabled, “--” means disabled. When ON, long press SET to enter alarm time setup - the digits will flash. Use UP/DOWN to adjust hours, press SET again to adjust minutes. Press SET to move to alarm 2 (A2) and alarm 3 (A3). They are set the same way as A1. After completing setup, press SET.
C. Switching between display modes. In time or date mode press UP to cycle between dP-1, dP-2 and dP-3 modes.
• dP-1. LED automatically alternates between time (10 seconds) and date (2 seconds), temperature always displayed.
• dP-2. Selected mode displayed. Time is shown constantly. Temperature and humidity are displayed together.
• dP-3. Time displayed in standard mode. Secondary screen shows only temperature and humidity.
D. Enabling power saving mode. In normal mode press DOWN (display ON = oNSd; display OFF = Sd). When active, LED display turns off after 30 seconds of inactivity, switching to energy saving mode while the clock continues working.
Temperature display modes
Default is Celsius. In standard mode, long press DOWN to switch between °C and °F. Temperature measured every 60 seconds.
Voice-operated mode functions
A. After enabling power saving mode, make a loud sound to activate the LED display.
B. When the display is on, voice control can adjust brightness (after 8 seconds brightness can be adjusted again).
Reset (RESET button)
If the clock malfunctions or settings are changed due to power issues, press the RESET button inside the battery compartment. This restores factory defaults.
IV. Power supply parameters
• Input power: AC 110 V ~ AC 240 V, 50/60 Hz
• Output power: DC 5V / 500 mA ~ 1,000 mA
• Power source: 4 AAA batteries
User manuals of desktop clocks |