diff --git a/src/checks/graphiteThreshold.check.js b/src/checks/graphiteThreshold.check.js
index 5382898c..23d4966e 100644
--- a/src/checks/graphiteThreshold.check.js
+++ b/src/checks/graphiteThreshold.check.js
@@ -44,8 +44,19 @@ class GraphiteThresholdCheck extends Check {
 			const results = await fetch(this.sampleUrl, {
 				headers: { key: this.ftGraphiteKey }
 			}).then(fetchres.json);
-
+			
 			const simplifiedResults = results.map(result => {
+
+				if(result.target && result.target.includes('summarize(sumSeries')){
+					const fetchCountPerTimeUnit = result.datapoints.map(item => Number(item[0]));
+					const sumUp = (previousValue, currentValue) => previousValue + currentValue;
+					const talliedUp = fetchCountPerTimeUnit.reduce(sumUp);
+					const isFailing = this.direction === 'above' ?
+					Number(talliedUp) > this.threshold :
+					Number(talliedUp) < this.threshold;
+					return { target: result.target, isFailing };
+				}
+
 				const isFailing = result.datapoints.some(value => {
 					if (value[0] === null) {
 						// metric data is unavailable, we don't fail this threshold check if metric data is unavailable
diff --git a/test/graphiteThreshold.check.spec.js b/test/graphiteThreshold.check.spec.js
index 0fc656d0..4e2855ef 100644
--- a/test/graphiteThreshold.check.spec.js
+++ b/test/graphiteThreshold.check.spec.js
@@ -34,7 +34,7 @@ function mockGraphite (results) {
 	});
 }
 
-describe('Graphite Threshold Check', function(){
+describe.only('Graphite Threshold Check', function(){
 
 	let check;
 
@@ -169,6 +169,87 @@ describe('Graphite Threshold Check', function(){
 			});
 		});
 
+	});
+
+	context('It handles summarize(sumSeries)', function () {
+
+		it('Should be healthy if sum above lower threshold', function (done) {
+			mockGraphite([
+				{ 
+					datapoints: [
+					[ null, 1635125640],[null,1635129240],[1,1635132840],[1,1635136440],[null,1635140040],[3,1635143640]], 
+					target: 'summarize(sumSeries)'
+				}	
+			]);
+			check = new Check(getCheckConfig({
+				threshold: 1,
+				direction: 'below'
+			}));
+			check.start();
+			setTimeout(() => {
+				expect(check.getStatus().ok).to.be.true;
+				done();
+			});
+		});
+
+		it('Should be healthy if sum below upper threshold', function (done) {
+			mockGraphite([
+				{ datapoints: [
+					[ null, 1635125640],[null,1635129240],[1,1635132840],[1,1635136440],[null,1635140040],[3,1635143640]], 
+					target: 'summarize(sumSeries)'
+				}	
+			]);
+			check = new Check(getCheckConfig({
+				threshold: 8
+			}));
+			check.start();
+			setTimeout(() => {
+				expect(check.getStatus().ok).to.be.true;
+				done();
+			});
+		});
+
+		it('Should be unhealthy if sum above lower threshold', function (done) {
+			mockGraphite([
+				{ datapoints: [
+					[ null, 1635125640],[null,1635129240],[1,1635132840],[1,1635136440],[null,1635140040],[3,1635143640]], 
+					target: 'summarize(sumSeries)'
+
+				}	
+			]);
+			check = new Check(getCheckConfig({
+				threshold: 6,
+				direction: 'below'
+			}));
+			check.start();
+			setTimeout(() => {
+				expect(check.getStatus().ok).to.be.false;
+				done();
+			});
+		});
+
+		it('Should be unhealthy if sum below upper threshold', function (done) {
+			mockGraphite([
+				{ datapoints: [
+					[ null, 1635125640],[null,1635129240],[1,1635132840],[1,1635136440],[null,1635140040],[3,1635143640]], 
+					target: 'summarize(sumSeries)'
+
+				},
+				
+			]);
+			check = new Check(getCheckConfig({
+				threshold: 4
+			}));
+			check.start();
+			setTimeout(() => {
+				expect(check.getStatus().ok).to.be.false;
+				done();
+			});
+		});
+	
+
+
+
 	});
 
 	it('Should be possible to configure sample period', function(done){