public function getResults($checkId, $limit = 100, array $probes = null)
	{
		$client = new \Guzzle\Service\Client('https://api.pingdom.com/api/2.0');

		/** @var $request \Guzzle\Http\Message\Request */
		$request = $client->get('results/' . $checkId, array('App-Key' => $this->token));
		$request->setAuth($this->username, $this->password);
		$request->getQuery()->set('limit', $limit);

		if (is_array($probes)) {
			$request->getQuery()->set('probes', implode(',', $probes));
		}

		$response = $request->send();
		$response = json_decode($response->getBody(), true);

		return $response['results'];
	}