Panel Mount Momentary-Switch / Pulse-Signal Control Latching SPDT Relay Module.
Part Number: MD-D1022A/24V

Features:
•This item has been assembled, and electrical test passed.
•Support on board momentary switch, single external momentary switch, double external momentary switches and pulse signal, four control modes.
•LED indication for relay set and reset action.
•G5LA-14 10 Amp SPDT power relay.
•Power off relay state memory, when the power on again, relay switch will revert to its previous state.
•The control program based on MCU PIC12F675, this is a flash microcontroller, if you are familiar PIC firmware, you can redesign the program.
•Panel mount version, size: 72.5 x 47.4 x 18mm (L x W x H)

Electrical Parameters:
•Operating voltage: 19 to 30VDC.
•Operating current: 30mA, at 24VDC.
•Relay number: G5LA-14 24 VDC.
•Relay switch type: SPDT.
•Relay switch capacity: 10Amp at 250VAC/24VDC.
•Pulse mode signal level: High 3~5V, Low 0V. 
Pulse signal must hold time: High level 1mS minimum, Low level 1000mS minimum. 
Pulse rising is valid.

Terminal block characteristic:
•Wire range 26-12AWG
•Mechanical Torque 0.4Nm(3.5Lb-In.)
•Strip length 7mm
•Dimensions Pitch 5.0mm(.197")
•Screws M2.5

Datasheet: https://www.czh-labs.com/tmp/madeimg/datasheet/d-1022.pdf