diff --git a/src/lib/telemetryFormatters.ts b/src/lib/telemetryFormatters.ts
new file mode 100644
index 0000000..e02fe67
--- /dev/null
+++ b/src/lib/telemetryFormatters.ts
@@ -0,0 +1,24 @@
+export function formatWeight(weight: string | undefined) {
+  return weight || 24
+}
+
+export function formatTemperature(temp: string | undefined) {
+  return temp ? temp.replace(".00", "") : '-'
+}
+
+export function formatHumidity(humidity: string | undefined) {
+  return humidity ? humidity.replace(".00", "") : '-'
+}
+
+export function formatBattery(batteryLevel: string | undefined) {
+  return batteryLevel || 89
+}
+
+export function diffTime(date: Date | string | undefined): number {
+  if (!date) return new Date().getTime()
+  if (typeof date === 'string') date = new Date(date)
+
+  const seconds = (new Date().getTime() - date.getTime()) / 1000
+  return Math.floor(seconds)
+  // return Math.round(seconds / 10) * 10
+}
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