AT4 Four-Wire Resistive Touch Technology
AT4 four-wire resistive technology is the entry-level touch solution. Its benefits include stable operation, quick touch response, input 
flexibility, narrow border width, less weight, and low power consumption. AT4 resistive touchscreens are ideal almost anywhere a small display is used.
Four-Wire Resistive Touchscreen Benefits
* Low cost solution
* Consistently accurate, fast touch response
* Finger, gloved hand and stylus activation
* Durable surface that resists contaminants and chemicals
* Antiglare surface treatment
* Available in 5.7″, 6.4″, 8.4″ and 10.4″ models
* Gasket-sealable construction
* Compact COACh IIs chip controller with power-down mode
* Compatible with the Elo SmartSet protocol and standard drivers
Economy for Employee-Operated Applications
* Light industrial
* Portable medical devices
* Access control terminals
* Portable devices for field automation
* Wearable computers
* Home appliances
Elo’s AT4 four-wire resistive touchscreens are the cost effective touch solution for small form factor applications while providing reliability, low power consumption, and narrow border width. The AT4 touchscreens enable broad input flexibility, with finger, gloved hand, or stylus activation, and it’s the ideal touch solution for portable devices, office automation, light industrial automation, medical equipment, and consumer products. The AT4 four-wire resistive touchscreens are another quality product from
Elo TouchSystems, the complete touch solutions provider.
AT4 Four-Wire Resistive Specifications
| MECHANICAL | |
| Input Method | Finger or gloved hand (cloth, leather, or rubber) activation |
| Available Sizes | 10.4″ to 32″ |
| ELECTRICAL | |
| Positional Accuracy | Standard deviation of error is less than 0.080 in. (2 mm) |
| Resolution | Touchpoint density is based on controller resolution of 4096 x 4096, plus 255 levels corresponding to touch pressure |
| Touch Activation Force | Typically 2 to 3 ounces (55 to 85 grams) |
| Controller | Board: Serial (RS232) and USB |
| OPTICAL | |
| Light Transmission | 92% ±2% |
| ENVIRONMENTAL | |
| Temperature | Operating: –20°C to 50°C |
| Storage: –40°C to 71°C | |
| Relative Humidity | Operating: 40°C at 90% RH, noncondensing |
| Altitude | Operating: 10,000 ft (3,048 m) |
| Storage/transport: 50,000 ft (15,240 m) | |
| Chemical Resistance | The touch activation area of the touchscreen is resistant to chemicals that do not affect glass such as: acetone, toluene, methyl ethyl ketone, isopropyl alcohol, methyl alcohol, ethyl acetate, ammonia-based glass cleaners, gasoline, kerosene, vinegar |
| Electrostatic Protection | Per EN 61000-4-2, 1995: Meets Level 4 (15kV air/8kV contact discharges) |
| AgencyApprovals | UL, cUL, TÜV, CE, FCC Class A |
| Sealability | Can be sealed tomeet NEMA 3/3R/5/12/12K/13, IP64 standards |
| DURABILITY | |
| Surface Durability | Surface durability is that of glass, Mohs’ hardness rating of 7 |
| Expected Life | No known wear-out mechanism, as there are no layers, coatings, or moving parts. IntelliTouch technology has been operationally tested to more than 50 million touches in one location without failure, using a stylus similar to a finger. |
| Impact Resistance | Can meet UL-60950 and CSA 22.2 No. 60950 ball drop test (0.5 kg, 50 mm diameter ball dropped from height of 1.3 m) |
| Warranty | Touchscreen: 10-year limited warranty |
| Controller: 5-year limited warranty |
