DC 5V Voltage Detection Relay Switch Board Charge and Discharge Protection Detection Upper and Lower Limit Alarm Control Module
SPECIFICATIONS
Brand Name: Stlxy
EU LVD Voltage: Low voltage: Below 50Vac or 75Vdc
High-concerned chemical: none
Model Number: Voltage detection relay
Origin: Mainland China
Power Source: DC
Theory: Voltage relay
Voltage: 5V
1: It can detect DC voltage between 0~50V, and the relay output can control the on/off of lines within 5A.
2. Adding a ms level delay time to prevent output oscillation and damage to the entire circuit.
3: Measurement accuracy of 0.04V, can be turned off for a long time to reduce power consumption
4: Input voltage: DC 5/12/24V optional
5: Function Description:
P-1: Charging monitoring: When the measurement is below voltage V1, the relay is closed, and when the voltage is above V2, the relay is disconnected;
P-2: Discharge monitoring: When the measurement is higher than voltage V2, the relay is closed, and when the voltage is lower than V1, the relay is disconnected;
P-3: Off range closing: When the measured voltage is between V1 and V2, the relay is disconnected, and in other cases, the relay is closed;
P-4: In interval closing: When the measured voltage is between V1 and V2, the relay closes, and in other cases, the relay opens;
P-5: Fixed point monitoring: When the measurement is higher than voltage V1, the relay is closed, and when the voltage is lower than V1, the relay is disconnected;
P-6: Fixed point self-locking monitoring: When the measured voltage is higher than V1, the relay will close; always keep closed; Until the power is manually cut off
P-7: Fixed point pulse monitoring: When the measured voltage is equal to V1 (which can fluctuate up and down by 0.02V) each time, the relay outputs a jog signal
6: Setting instructions:
Power on display shows that the measured voltage has entered standby mode;
Press K1 for the first time (takes more than 1 second to be effective to prevent accidental triggering)
Screen flashing display: P --1: K2 plus mode, K3 minus mode
Press K1 for the second time, the screen flashes and displays 12.50, indicating V1=12.5V. Adjust V1 for K2 and K3. Press K1 for the third time, and the screen flashes and displays 13.50, indicating V2=13.5V. Adjust V2 for K2 and K3. Press K1 for the fourth time, and the display shows that the measured voltage indicates entering standby mode;
Press K4 in standby mode to permanently turn off/on the display and switch to low-power mode










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- Returns: 30-day hassle-free return window
- Condition: Items must be unused and in original packaging
- Refund: Full refund processed within 3-5 business days
- Factory Direct: ISO/TS 16949 certified manufacturer
- Quality: 100% electrical continuity tested before shipment
- Experience: 15+ years in automotive connector industry
- Support: Professional technical support available
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