So on "low" the relay triggers when the signal voltage falls below 12v? and "hi" when the signal rises above 12v? can you tune the trigger voltage?thx

If you set it to "High" then the relay trips when there is + 12V on INT1 or INT 2. (+12 as in the positive side of the power source) If you set to low, it will trip when their is -12v (technically 0 volts) on INT 1 or INT2 (-12 as in the negative side of the power source)

These are locking in the triggered position (Red light on), even with no trigger voltage. Any ideas, did I get bad ones?

When you say no trigger voltage, do you mean that no wires connected? If so then you may have gotten a bad set. Otherwise, check the jumper pins next to the trigger input. See if it set to low.

What is the minimum to maximum voltage for both the low and high?

Minimum voltage that will trigger high: 2.5V Maximum voltage that will trigger low: (Vsupply- 2.5V) Measured this with Vsupply values of 12.2V and 13.6V. Used UNI-T UT61E multimeter for voltage measurements.

are these latching relays?

No. They have normally open and normally closed contact points and will flip to the normally closed position when the trigger stops.

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HiLetgo 2pcs DC 12V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module Triggered by DC 12V

HiLetgo 2pcs DC 12V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module Triggered by DC 12V

Product ID: 256334306

Details

Connector type
Screw
Contact material
Silver
Contact type
Normally Open
Current rating
10 Amps
Mounting type
PCB Mount

⚡10A max current capacity

🔌12V DC coil voltage

🛡️Optocoupler isolation for stable drive

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Description

⚡ Elevate your control game with precision-triggered power!

FAIL SAFE RELIABILITY - Fault-tolerant design prevents accidental relay activation even if control lines break.
DUAL CHANNEL POWERHOUSE - Control two circuits independently with high/low level trigger flexibility.
USER FRIENDLY INTERFACE - Direct terminal wiring and jumper settings make installation and customization effortless.
ROBUST 10 A LOAD HANDLING - Supports up to 250V AC or 30V DC at 10 amps for heavy-duty applications.
ISOLATED OPTOCOUPLER DESIGN - Ensures stable performance and protects your control system from electrical noise.

The HiLetgo 2pcs DC 12V 2 Channel Relay Module offers dual independent relay control with high/low level trigger options, supporting up to 10A current at 250V AC or 30V DC. Featuring optocoupler isolation for enhanced stability and a fault-tolerant design, it ensures reliable operation in demanding electrical projects. Compact and user-friendly, it’s perfect for professionals seeking robust and flexible relay solutions.

Specifications

ASIN	B00LW15F42
Best Sellers Rank	#5,017 in Electronics ( See Top 100 in Electronics ) #142 in International Power Adapters
Brand Name	HiLetgo
Coil Voltage	12 Volts (DC)
Connector Type	Screw
Contact Current Rating	10 Amps
Contact Material	Silver
Contact Type	Normally Open
Current Rating	10 Amps
Customer Reviews	4.6 4.6 out of 5 stars (478)
Item Weight	0.11 Pounds
Manufacturer	HiLetgo
Maximum Switching Current	10 Amps
Maximum Switching Voltage	250 Volts
Minimum Switching Voltage	12 Volts
Model	3-01-0342
Mounting Type	PCB Mount
Number of Items	2
Number of Packs	2
Operation Mode	Manual
Part Number	3-01-0342
UPC	702082655962
Unit Count	2 Count
Wattage	50 watts

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E£ 976

Duties & taxes included

In stock

Sold byAmazon EGYPTDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to EGYPT.

Secure transaction

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