IET LABS VRS-100 Series High Resistance Standards (Max 10 Tω, 10Kv)

(Full specifications can be found on datasheet)

Set of nine, ten or eleven resistors - 1 kΩ, 10 kΩ, 100 kΩ,1 MΩ, 10 MΩ, 100 MΩ, 1 GΩ, 10 GΩ, 100 GΩ, 1 TΩ and 10 TΩ , open circuit (Depending on model)
High Accuracy - up to 20 ppm
Standard voltage: up to 5 kV (voltages of 10 kV are available)
Excellent for calibration of Meggers

Datasheet