LCD Display Delay Timer Relay

Dimensions: 52 × 32 × 18 mm. Weight: approx. 35 g. Operating voltage: 6–30 V DC. Input logic compatible with 5 V TTL/CMOS signals. Single-channel SPDT relay output (rated 10 A / 250 V AC or 30 V DC). Features built-in LCD display for real-time parameter visibility and configuration. Uses optocoupler isolation between control and load circuits to suppress electrical noise and protect microcontrollers. Supports both high-level and low-level trigger modes, configurable via onboard jumper. Timing range: 0.1 s to 999.9 s, adjustable in 0.1 s increments. Constructed with flame-retardant ABS housing and gold-plated relay contacts for reliable switching over extended cycles. Core functionality includes precise delay-on-make timing with clear visual feedback via the integrated LCD — enabling confident setup without external test equipment. The optocoupler isolation ensures safe interfacing with sensitive logic boards such as Arduino, Raspberry Pi, ESP32 and other 5 V development platforms. Trigger mode flexibility allows direct integration into existing circuits whether active-high or active-low signal protocols are used. Ideal for UK home automation tasks like timed lighting, pump control, garage door sequencing, or HVAC staging; equally suited for educational labs, prototype development, and small-scale industrial monitoring where robust, self-contained timing is required without software dependency.