Great Voltage Monitoring Relays Deals & Low Prices

Last Updated - April 2026

Best Choice
Walfront

DC Voltage Detection Module 0-55V Digital Display Voltage Sensor Relay for Battery Monitoring and Power Supply Testing
✔The working voltage is DC12V, the measuring range is DC0-55V, and the relay life is 100,000 times

CA$19.82
Generic

DC 6~80V Voltage Monitoring Relay Time Delay Relay Charging Discharge Controller Module Undervoltage Overvoltage Protect
🌟 Operating power is DC 6 to 80V,contact load is 30A,250V AC or 30V DC. High quality voltage monitoring relay is High q

CA$21.09
Best Value
Zerone

Voltage Monitoring Relay, 3 Phase Power Monitor, Over Under Voltage Protector, Phase Loss Sequence Detection, 3-Phase Vo
No external power required: This relay operates without the need for external power, making installation and convenient.

CA$39.62
Pretfy

Pretfy DC 6~80V Voltage Monitoring Relay Time Delay Relay Charging Discharge Controller Module Undervoltage Overvoltage
Operating power is DC 6 to 80V, contact load is 30A, 250V AC or 30V DC. High quality voltage monitoring relay is High qu

CA$23.09
YWBL-WH

Voltage Monitoring Relay, Overvoltage Undervoltage Protector, DC 12V Over-Voltage and Under-Voltage Relay 35MM Guide Rai
PRODUCT NAME: Voltage Monitoring Relay; function: over voltage, under voltage; Rated voltage: DC 12V/24V/36V/48V; Overvo

CA$41.83
MiOYOOW

Voltage Monitor Module, A30-U1 DC 0-99.9V Delay Relay Controller Board for Overvoltage Undervoltage Control Voltage Dete
1>Screen display Current Measured Voltage Value automatically after power ON. Press SET button enter into set mode and t

CA$31.32
11% Off
Supco

SUPCO 90380 General Purpose Fan Relay, 13 A Load Current, 24 V Coil Voltage, Normally Open and Normally Closed Contacts
Electric relay for receiving and controlling electric signals

CA$10.43 CA$11.73
Acogedor

3-Phase Sequence Relay, 208-480VAC Three-Phase Voltage Monitoring Relay, IP20, for Phase Sequence and Phase Loss, for Mo
DPA51CM44 three-phase monitoring relay features strong anti-interference performance

CA$26.54
YWBL-WH

Voltage Monitoring Relay DC 12V/24V/36V/48V Over-Voltage and Under-Voltage Relay 35MM Guide Rail 13-17V 10-14V(DC48V)
TYPICAL APPLICATIONS---The voltage monitoring relay is typically applied in dc motor, battery,UPS power supply, dc switc

CA$30.41
Hyuduo

Hyuduo GRV8-03 Voltage Monitoring Relay, Adjustable Settings, Phase Sequence Protection, LED Indicator for Industrial Eq
[Voltage Monitoring Efficiency]Monitors three-phase voltage effectively, ensuring safety for industrial equipment agains

CA$37.87

10 Voltage Monitoring Relays deals are available from: Amazon stores, starting from CA$10.43.
The biggest discount we found is 11% on SUPCO 90380 General Purpose Fan Relay, 13 A Load Current, 24 V Coil Voltage, Normally Open and Normally Closed Contacts at Amazon.
The lowest price we found is CA$10.43 while the highest is CA$41.83.
Prices for the best Voltage Monitoring Relays deals average at CA$28.20.
Last updated on April 16, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Voltage Monitoring Relays.