ReviewsDigital Current Differential Relay

Manometer, 12 Selectable Units Differential Pressure Gauge, Dual-Port Manometer Gas Pressure Tester, Digital Pressure Gauge with Backlight, Professional Air Pressure Meter, Handheld HVAC Manometer

...range. High-precision ADC and low-power MCU. Maximum/minimum mode and DIF mode. Professional air pressure gauges are specially used for gas measurement and calibration, gas pressure system troubleshooting, laboratory testing, maintenance and installation of blowers, clean rooms, boilers and other gas appliances..
【Differential Pressure Gauge with 12 Selectable Units】The length of the two hoses in the gas pressure gauge set is 25cm.
The thread size of the barb metal connector is 1/8 inch.
12 optional units (mmHg, inHg, ftH₂O, cmH₂O, inH₂O, Pa, KPa, mbar, bar, psi, Kgcm² and ozin²).
【Manometer for Measuring Positive and Negative Pressure】There are two ports on the top of the differential pressure meter, one for testing positive pressure and the other for testing negative pressure. You can select any port to test the pressure difference (P1-P2) between the two areas. Using the single pipe connector of the air pressure meter, you can quickly measure the current pressure value (relative to the current atmospheric pressure)..
【Digital Manometer with Data Recording & Holding Function】Gas manometer data storage: 100 groups.
the user-friendly design of the manometer gas pressure tester recording test data function is convenient for users....

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Aoicrie 5Pcs DC 5V 1 Channel Relay Module Board Shield with Optocoupler Isolation Support High or Low Level Compatible Development Board Trigger

This Relay Board Maximum load: AC 250V/10A, DC 30V/10A With power and relay action indicator.each relay has normally open and normally closed contact. Can be selected by jumper relay and TTL or ground..
Main Specification Peak Load of NO Connector: AC 250V/10A, DC 30V/10A.
These Relay Board use photocoupler isolation that has strong driving ability and stable performance.The isolation circuit prevent damages to I / O port by relay switch current.The module has a jumper so you can set rather the unit state changes with high or low signal. Has screw terminals for relay (NC,C,NO) and for input.
Using SMD optocoupler isolation, strong driving capability, stable performance.Fault tolerant design, even if the control line is broken, the relay will not operate.
And interface design humanized, all the interface can be directly connected through the terminal lead, so convenient..
Wide Application These 5V relay board works well with for ARM /PIC /AVR /MCU/Raspberry/CNC machine /etc..

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Aoicrie 5Pcs DC 12V 1 Channel Relay Module Board Shield with Optocoupler Isolation Support High or Low Level Compatible Development Board Trigger

This Relay Board Maximum load: AC 250V/10A, DC 30V/10A With power and relay action indicator.each relay has normally open and normally closed contact. Can be selected by jumper relay and TTL or ground..
Main Specification Peak Load of NO Connector: AC 250V/10A, DC 30V/10A.
These Relay Board use photocoupler isolation that has strong driving ability and stable performance.The isolation circuit prevent damages to I / O port by relay switch current.The module has a jumper so you can set rather the unit state changes with high or low signal. Has screw terminals for relay (NC,C,NO) and for input.
Using SMD optocoupler isolation, strong driving capability, stable performance.Fault tolerant design, even if the control line is broken, the relay will not operate.
And interface design humanized, all the interface can be directly connected through the terminal lead, so convenient..
Wide Application These 12V relay board works well with for ARM /PIC /AVR /MCU/Raspberry/CNC machine etc..

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SainSmart 8-Channel Relay Module

5V 8-Channel Relay interface board, and each one needs 15-20mA Driver Current.
Equipped with high-current relay, AC250V 10A.
Standard interface that can be controlled directly by microcontroller (Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP432, TTL logic).
Indication LED's for Relay output status.

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Dixell XR40CX-5N1C1 230V/50Hz-60Hz Digital Thermostat Controller with Defrost Management Programmable-Commercial for Refrigeration Units

Suitable for appliances including:for applications on medium or low temperature refrigerating units.XR40CX-5N1C1 230V/50-60Hz..
The regulation is performed according to the temperature measured by the thermostat probe with a positive differential from the set point:if the temperature increases and reaches set point plus differential the compressor is started and then turned off when the temperature reaches the set point value again. In case of fault in the thermostat probe the start and stop of the compressor are timed through parameters COn and COF..
Two defrost modes are available through the tdF parameter: defrost through electrical heater (tdF= EL) and hot gas defrost (tdF = in). Other parameters are used to control the interval between defrost cycles (IdF), its maximum length (MdF) and two defrost modes: timed or controlled by the evaporator?s probe (P2P).At the end of defrost dripping time is started, its length is set in the FSt parameter. With FSt =0 the dripping time is disabled..
SAFETY PRECAUTIONS Check the supply voltage is correct before connecting the instrument. Do not expose to water or moisture: use the controller only within the operating limits avoiding sudden temperature changes with high atmospheric humidity to prevent formation of ....

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DPST 1NO 1NC 8Amp Power Relay Module, Briidea 24V AC/DC Power Relay Control Voltage, White

INPUT CONTROL SIGNAL: Voltage AC or DC 24V, Current 17mA..
OUTPUT CURRENT: Output switch DPST 1NO 1NC(Double Pole Single Throw, 1 Normally Open and 1 Normally Close ), rated current 8A/250VAC or 8A/30VDC (one switch)..
SIMPLE & PRACTICAL: This passive power relay module is simple and practical, which is very convenient to use. It can support both Normally Open and Normally Close..
EASY MOUNT: The power relay is of compact plastic case and wires connects for easy mount. Two screw mounting holes are convenient for you to fix it on the wall or wooden board. Of course, you can also choose not to lock the screw..
LED INDICATION: This power relay has a led indicator for relay action indication. It is obvious to know the status of the switch at a glance..

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ELEGOO 8 Channel DC 5V Relay Module with Optocoupler Compatible with Arduino UNO R3 MEGA 1280 DSP ARM PIC AVR STM32 Raspberry Pi

5V 8-Channel Relay interface board, each one needs 70mA Driver Current.
Equiped with high-current relay, AC250V 10A.
Each relay has normally open and normally closed contact. Can be selected by jumper relay and TTL or ground..
With power indicator,8-way road has a status indicator. With a relay coil to absorb the diode protection..
Standard interface that can be controlled directly by microcontroller (Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic).
The 8 channels are optically isolated, safe, reliable, anti-interference. Widely used for all MCU control, industrial sector, PLC control, smart home control。For a complete data sheet for this relay board, please download it from: http://dwz.win/UhW.

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Veris,Current Switch and SPST Relay,N.O H735

The Hawkeye Relay Combination Series is the ideal solution for the automation installer..
These units combine a current switch and relay into a single package, reducing the space required for total control of fans and pumps..
The current switch and relay operate independently of one another..
These devices allow start/stop control and status monitoring with one device instead of two..

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Timer Relay, Icstation Time Delay Switch AC 110V 120V Timer Switch Module Digital Time Cycle AC 85V-265V LED Display 0ms-999h

⏳Wide timing range: ICStation time relay delay is able to tolerate the widest timing adjusting range: 0-999S/ 0-999M/ 0-999H,it is available for various application.(Please Note: If the T1 time is second,the T2 time must be second. They can not achive T1 time is second and T2 time is minute/hour.).
⏳ Wide supply voltage range: Icstation timer relay supports AC85-265V. This device can support different work mode, If you are not clear the operation, please download the PDF user manual or Email us..
⏳Cycle Timer relay supports sleep working mode, which will turn off automatically after 10s(need to set ). It is also very easy to set parameter via 4 momentary keys..
⏳Parameter:Cycle Timer relay Support Voltage Input: AC85-265V, Maximum Power: .
⏳Application:The Digital timer delay can be used for timing, delay, cycle timing, intermittent timing occasions and so on, such as the descending machine DIY, timing switch, timing alarm control board. Kindly Tips: We have uploaded the user manual on the Amazon page at technical specification or under the IMAGE, please download it and read it before you use it..

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SainSmart 16-Channel 12V Relay Module Board for Arduino DSP AVR PIC ARM

12V 16-Channel Relay interface board, and each one needs 15-20mA Driver Current.
Equipped with high-current relay, AC250V 10A.
Standard interface that can be controlled directly by microcontroller (Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP433, TTL logic).
Indication LED's for Relay output status.

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SSR-100, DC-DC Solid State Relay 5-220V DC with Non-Contact Switch, SSR-100 DD

Control Method: The solid state relay uses DC-DC control method, which can provide stable performance..
Load Current: 100A, Load Voltage: 5-220VDC, Control Voltage: 3-32VDC, Control Current: DC: 5-50mA.
Installation: The solid state relay uses bolted installation method, easy to install and remove..
Heat Dissipation: The relay has pure aluminum heat sink base plate for fast heat dissipation..
Material: The solid state relay is made of thyristor and optoelectronic with non-contact switch..

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