Reviews Time counter Relays

Ingcool Compatible with Raspberry Pi Expansion Board Power Relay Module Kits for Raspberry Pi 4B/3B+/3B/2B/ A+/B+ 5A 250V AC/ 5A 30V DV

Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards.
The RPi Relay Board gives your Pi the ability to control high voltage/high current devices, easily makes normal home appliances become intelligent..
High quality relays, loads up to 5A 250V AC or 5A 30V DC.Photo coupling isolation, prevent interference from high voltage circuit.
Relay control jumper, allows to control the relays by custom pins other than the default pins.Onboard LEDs for indicating relays status.
Comes with development resources, including examples in wiringPi, WebioPi, shell, python, and bcm2835.

【12V】Working voltage is DC 12V, you can easily find suitable power for this relay..
【reverse polarity protection.】This signal decoder relay ahs reverse polarity protection which can extend the service life..
【8 modes】8 modes of operation: Non-locking (Momentary ), self-locking (Toggle), inter-locking(Latch), 5/20/60/120/250-second delay..
【default control】The default control command is 1/2/3/4. Example: Dial 1 to control relay 1, dial 2 to control relay 2, dial 3 to control relay 3, dial 4 to control relay 4.
control commands can be changed any 1-4 bits. (For more details, refer to "AD22B04_4 channel DTMF controller commands setting manual ")..
【operating current】Standby 11-13 MA, 1 relay "open" 44MA, 2 relays "Open" 77MA, 3 relays "Open" 110MA, 4 relays"open" 140MA..

Package content: there are 5 pieces of 4.7 ohm 1-pin PTC starting relays and 5 pieces of 750C-0005P refrigerator overload protectors in the package,....
Compatible models: refrigerator overload protectors can effectively prevent the compressor in the refrigerator from overheating, they can be effective....
PTC starting relay: the PTC starter relay is a universal starter relay, applied in various brands of mini refrigerators and coolers.
Easy to install: the refrigerator start relays are durable, reliable and not easy to rust thanks to plastic and brass materials.
Wide applications: the 4.7 ohm 1-pin PTC start relays and 6750C-0005P refrigerator overload protectors are compatible with most mini refrigerators,....

Weatherproof Mini "280" relay connector kit..
Fits any automotive industry standard Mini "280" weatherproof relays regardless of manufacturer. Hella mating relays include 931410087, 931410082, 931410057, 931410917..
Kit includes plastic connector housing, external housing seal, (7) 6. 3 mm locking terminals, (6) various wire seals..
Package dimensions:5.91" (L) x 3.62" (W) x 1.94" (H).

Sufficient for using: you will receive 8 pieces 12V 30A 5 pin relays, the size is about 1.02 x 0.94 x 0.63 inch/ 2.6 x 2.4 x 1.6 cm, enough quantity can meet your daily use and replacement, you can share them with your friends and family who need them, these relays are 5 plug please note when ordering.
Stable for long time use: the black shell of the 12V car relay is made of nylon material which is electrical insulation, the pin is made of brass, which can withstand cold and hot condition, stable and reliable, not easy to break, deform or rust, applicable for a long time.
Easy to use: the motor relay is suitable for normal automobile use and simple to operate, you just need to connect the relay with the wire, no other tools needed, convenient for your use and replace, allowing your components to work properly.
Specifications information: 30A 12V Relay can be applied to control electrical circuits for components on a vehicle that have a high amperage load, such as headlights, fuel pumps and cooling fans.
Extensive usages: the automotive relay is practical and convenient, can be applied to car tail light, engine compartment, electric cooling fans, electric water pumps, electric fuel pumps, shaved door handles solenoids, trunk solenoids and other equipment.

...It's on/off control mode. Turn on your device at a degree and turn it off at another degree. Fully utilize the stc microcontroller and NTC probe to have this temperature regulator has great accuracy: ±1°F, Temperature control range: -58~212°F, Power consumption: ≤3W, Power Supply: 110VAC 50Hz/60Hz. Output: 2 Relays, Cooling (10A/110-220VAC) / Heating (10A/110-220VAC)..
【Wirring heater and cooler at the same time】No more frequently change wirring between heater and cooler. This temperature regulator has 2 relays. Compared with other 1 relay temperature controllers, you can wire 2 appliances (heater and cooler) at the same time. (Please kindly note no outlets, wirring needed)..
【ABS plastic shell & compressor delay protection function】This incubator thermostat ac110V is made of ABS heavy-duty and anti-flamming plastic shell, designed with compressor delay protection, alarm when temperature exceeds temperature limit. All these promise the best safety guarantee to this temperature controller..
【KETOTEK 1 YEAR GUARANTEE AND PROFESSIONAL ELECTRICIAN SUPPORT】Every piece of our products is strictly inspected before sale. If you have any question, please feel free to contact us, we have profesional technicians to help you with any problems in us....

3 diagnostic trouble codes help define the cause of the bad relay.
Fails bad relays - Good/Bad indication, green light for PASS, red light for FAIL with flashing trouble code.