Why Click and other ADC PLCs need additional components in your control panel that increases the total cost of the PLC significantly as compared to EZNano:

The Problem: Transient Voltage Effects

Inductive loads (motors, solenoids, contactors) create extreme transient voltage spikes when de-energized. If not suppressed, these transients cause:

Reduced Component Life: Arcing across relay contacts, causing pitting and premature failure.
Electronic Damage: Spikes exceeding transistor ratings in solid-state outputs, leading to immediate failure.
System Instability (EMI/RFI): Arcing generates electromagnetic interference (EMI) that can disrupt the PLC and other electronics, causing "mysterious errors."

While PLC outputs typically have some integrated transient suppressors, these are often not capable of handling all transients. To ensure long component life and reliable operation of the control system, additional transient suppression for the inductive load is usually necessary (like adding your own snubbers). A lack of suppression is a common cause of mysterious errors in automation installations.

The EZPLC Nano Advantage: EZAutomation offers the only PLCs with Integrated Snubber Networks

The EZPLC Nano directly addresses the need for additional suppression by incorporating robust snubber circuits directly onto its relay output board. This integration achieves:

Feature	Benefit of Built-in Snubbers
Snubber Network	'Eliminates the Need for External Wiring:' The user does not need to purchase, size, and wire external protection components.
Contact Longevity	"Suppresses Arcing:" By absorbing the energy spike, contact pitting is prevented, increasing the relay's electrical life by a factor of 10 to over 1 million cycles.
EMI/RFI Mitigation	"Reduces Electrical Noise:" The suppressed arc dramatically lessens the radio frequency interference (RFI) generated, ensuring higher noise immunity for the control system.
Output Rating	"Reliable 10 Amp Switching:" Enables the PLC to directly switch larger inductive loads (like small motors or large contactors) without the cost and complexity of an interposing relay.

In summary: The built-in snubbers turn the potential weakness of relay outputs (poor performance with inductive loads) into a strength, delivering superior reliability and a simpler wiring solution at a fraction of the cost of a comparable Click PLC requiring external snubbers, wiring, etc. See comparison below. Click PLC pricing based off their product configurator.

EZAutomation (EZPLC Nano) vs AutomationDirect (Click)

Click from AutomationDirect is manufactured in China whose price is invariably going to increase due to tarrifs. It is constantly going up and you will be well advised to take in to account this uncertainity of price and/or availabilty at all.

Feature	EZAutomation EZPLC Nano with 24 I/O and built-in snubbers @ $206	AutomationDirect Click with 24 I/O - $349, add just 4 Snubbers without Ziplinks it is $729
Model	EZPLC Nano Fixed I/O, 16 DCI, 8 RLO, 1 Form C, NO & NC contacts 10 Amps with snubbers on each contact. Expandable to 2048 I/O.	16 DCI, 8 RLO, external zip module & cable needed to get to 1 Form C , 8 Amp reading, still without snubbers. ZL-RRL16F-24-1 Relay module, ZL-CO-CBL 20-1 cable.
General description	Full fledged advanced PLC	Not really a PLC, it is a Smart Relay
10 Amp. Normally open and Normally closed 1 Form C Relay contacts for fail safe logic needs. Each contact with built-in snubber network to eliminate radio frequency interference (RFI or electrical noise) generated during turn-off of motors, solenoids, and other inductive loads.	Yes	Cost an additional $761 (with labor included for $5 per contact) for 8 1 Form C NO & NC contacts and snubbers with still a rating of 8 Amps instead of 10 Amps
Runtime Edit	Yes	No
PLC Functionality	High End, 55 Instructions, Advance Function Blocks, Advanced Math Capable.	Only 21 Instructions, Primitive PLC not ladder logic
PID Loops	8 Auto tuned PID loops	No
Program Time in minutes	EZiest Drag 'N' Drop Programming software, no class required	Primitive
Free Flow Logic that cuts down number of rungs by atleast 50%	Yes	No
High Speed Counter (option)	20 KHz High Speed Counter with 100 µs PLS Output Available	No
Highest Reliability and Noise Immunity in industry.	Yes	No
32 bit Floating point Math and Logic	Yes	No
Drum Sequencer, and send to marquee instruction	Yes	No
Advanced instructions: Data convert, move block, bit move, strings and subroutines	Yes	No
Modular Expandable to 2048 I/O via optional RS485 port	Yes, 2048	256
Status LED for each I/O in every model and Plug-in Terminal Blocks, for EZiest troubleshooting & maintenance.	Yes	Yes
Real time clock and battery	No	Yes with extra cost
Load project using OEM packager. No software required.	OEM Packager. No need of software to transfer program to PLC.	Feature Not available
Flash memory module to back up PLC project	Yes	No
Password protection for OEM/SI investment	Yes	No
Quality Testing of each unit shipped	Mini HASS, temperature shock and vibration for each unit shipped	No
24 Hour Burn Room	Each Unit Shipped	No
Made in America to create and sustain American jobs	Made in America, Free of Tariffs	No

Feature	EZAutomation EZPLC Nano with 32 I/O - $119	AutomationDirect Click with 32 I/O - $349.50 + $20 for each snubber up to $320 for a total of $669.50
Model	EZPLC Nano Fixed I/O, 16 DCI, 8 RLO, 1 Form C, NO & NC contacts 10 Amps with snubbers on each contact. Expandable to 2048 I/O.	16 DCI, 8 RLO, external zip module & cable needed to get to 1 Form C , 8 Amp reading, still without snubbers. ZL-RRL16F-24-1 Relay module, ZL-CO-CBL 20-1 cable.
General description	Full fledged advanced PLC	Not really a PLC, it is a Smart Relay
10 Amp. Normally open and Normally closed 1 Form C Relay contacts for fail safe logic needs. Each contact with built-in snubber network to eliminate radio frequency interference (RFI or electrical noise) generated during turn-off of motors, solenoids, and other inductive loads.	Yes	Cost an additional $525 for 8 1 Form C NO & NC contacts and snubbers with still a rating of 8 Amps instead of 10 Amps
Runtime Edit	Yes	No
PLC Functionality	High End, 55 Instructions, Advance Function Blocks, Advanced Math Capable.	Only 21 Instructions, Primitive PLC not ladder logic
PID Loops	8 Auto tuned PID loops	No
Program Time in minutes	EZiest Drag 'N' Drop Programming software, no class required	Primitive
Free Flow Logic that cuts down number of rungs by atleast 50%	Yes	No
High Speed Counter	20 KHz High Speed Counter with 100 µs PLS Output Available	No
Highest Reliability and Noise Immunity in industry.	Yes	No
32 bit Floating point Math and Logic	Yes	No
Drum Sequencer, and send to marquee instruction	Yes	No
Advanced instructions: Data convert, move block, bit move, strings and subroutines	Yes	No
Modular Expandable to 2048 I/O	Yes, 2048	256
Status LED for each I/O in every model and Plug-in Terminal Blocks, for EZiest troubleshooting & maintenance.	Yes	Yes
Real time clock and battery	No	Yes with extra cost
Load project using OEM packager. No software required.	OEM Packager. No need of software to transfer program to PLC.	Feature Not available
Flash memory module to back up PLC project	Yes	No
Password protection for OEM/SI investment	Yes	No
Quality Testing of each unit shipped	Mini HASS, temperature shock and vibration for each unit shipped	No
24 Hour Burn Room	Each Unit Shipped	No
Made in America to create and sustain American jobs	Made in America, Free of Tariffs	No