You're going to have to be more specific about what you're trying to do, because I'm not sure there's a device that actually fulfills those precise specifications. I'll lay this out in points for simplicity:

* ECGs need a dipole, so a single-point arm or wrist device - if it exists at all - would be pretty weak. Wrist and finger devices typically are photoplethysmographic.

* If you are trying to measure any kind of episodic EDA response, you want a palmar (or foot) device. If EDA is going into a model of physical or metabolic activity, that's probably less important.

And the devices...

* Pulse oximeters, as stated, can indeed do HR monitoring from the finger or wrist. They are also prone to movement errors, and the different and various commercial versions will probably not give you much access to the pulse-to-pulse interval. Which you probably need. Consequently, they are not ideal for ambulatory monitoring, two-handed tasks and work fairly badly in some environments.

* Bitalino is great hardware - I just ordered one myself off their Kickstarter - and can be modified to do more or less whatever you want. However, you will need at least some basic biomedical engineering skills to make it work, and you will have to build it yourself.

* Movisens I haven't used but the hardware has a good reputation. The heart rate monitor is chest strap, from memory, which you don't want. If I was measuring ambulatory SCR, though, I would choose a device very similar to their EDA-sensor, which is a great build - electrodes around the thenar eminence, wrist mounted... good stuff.

Basically, we need a lot more information about what you want to do - time frame, participants, posture and movement, task content (if any), and most importantly the measures you want from the raw heart and skin c. data in the first place. There are probably 50 suitable and relatively low-cost devices that do some version of what you want to do here, and there are new builds every month as the technology is now very accessible.

Hi!

Dear Davide Salanitri you can use the pulse oximeter  set. it's finger set.

Best  Regard

take a look over: http://www.bitalino.com/

you can design it according to your needs

Dear Davide,

cou can have al look at the devices from movisens, Karlsruhe, Germany. (www.movisens.com)

They developed an mobile EDA-Sensor (edaMove) and a mobile ECG-sensor (ekgMove) that could fit to your application.

You're going to have to be more specific about what you're trying to do, because I'm not sure there's a device that actually fulfills those precise specifications. I'll lay this out in points for simplicity:

* ECGs need a dipole, so a single-point arm or wrist device - if it exists at all - would be pretty weak. Wrist and finger devices typically are photoplethysmographic.

* If you are trying to measure any kind of episodic EDA response, you want a palmar (or foot) device. If EDA is going into a model of physical or metabolic activity, that's probably less important.

And the devices...

* Pulse oximeters, as stated, can indeed do HR monitoring from the finger or wrist. They are also prone to movement errors, and the different and various commercial versions will probably not give you much access to the pulse-to-pulse interval. Which you probably need. Consequently, they are not ideal for ambulatory monitoring, two-handed tasks and work fairly badly in some environments.

* Bitalino is great hardware - I just ordered one myself off their Kickstarter - and can be modified to do more or less whatever you want. However, you will need at least some basic biomedical engineering skills to make it work, and you will have to build it yourself.

* Movisens I haven't used but the hardware has a good reputation. The heart rate monitor is chest strap, from memory, which you don't want. If I was measuring ambulatory SCR, though, I would choose a device very similar to their EDA-sensor, which is a great build - electrodes around the thenar eminence, wrist mounted... good stuff.

Basically, we need a lot more information about what you want to do - time frame, participants, posture and movement, task content (if any), and most importantly the measures you want from the raw heart and skin c. data in the first place. There are probably 50 suitable and relatively low-cost devices that do some version of what you want to do here, and there are new builds every month as the technology is now very accessible.

There are several devices on the market. It would help to know what scientific question you are asking, e.g. arrhythmia versus heart rate variability and metabolic demand versus blood flow parameters. This will help determine what parameters are best for your purposes.