Automation and Control

Product Price
RS485 Master (Controller) The RS485 MASTER is an isolated USB to RS485 converter. It can communicate serially over a 2 wire RS485 network to a maximum of... $62.70
Arduarium Controller Ultimate (Assembled) The all in one Aquarium control and automation shield is here! With sensors for pH and ORP, EC, RTC and hookups for many... $59.95
Super4 RS485 Relay Module Super4 RS485 Relay Module The SUPER4 RS485 Module is a relay control board containing 4 mechanical SPDT (Single Pole Double Throw) power relays. The module... $59.95
PowerSwitch Tail 240 Kit Switch relays from your microcontroller easily with the PowerSwitch Tail 240 Kit! Features Kit, assembly and soldering required... $39.95
Relay shield V2.0 The Relay Shield utilizes four high quality relays and provides NO/NC interfaces that control the load of high current. Which... $27.95
BNC Sensor Shield (Assembled) Give your Arduino the ability to measure pH, ORP, DO... any ion specific electrode! The simple configuration means you can be up... $24.95
Beefcake Relay Control Kit  Beefcake Relay Control Kit Your 5 volt system can wield great power with this big beefy relay board. How does 20 amps at 220VAC sound? The Beefcake Relay... $11.95
Pololu Basic SPDT Relay Carrier with 5VDC Relay (Partial Kit) The Pololu basic relay carrier modules allow simple control of a single-pole, double-throw (SPDT) switch from low-voltage, low-... $6.95