Extech MG310 Insulation Tester 250-1000V 5.5GΩ CAT III 600V Ideal for HVAC

Extech
Order Code:

09-1272

Brand: Extech MPN: MG310 EAN-13: 0793950380109
Qty Was Unit Price (Ex VAT)
1+ £184.67 £168.03
Price per unit {{ this._page.IncVat ? 'Inc' : 'Ex' }} VAT
Available to back orderBack-order availability date - 16/04/2026

The Extech MG310 is an insulation tester capable of testing at 250 V, 500 V, and 1000 V, measuring up to 5.5 GO. Manufactured by Extech, this device performs electrical isolation and resistance tests, acting as an ohmmeter for safety assessments. It is typically used to ensure the integrity of electrical installations and equipment.
Minimum Test Voltage 30V
Display Type Digital (LCD)
Calibrated Manufacturer's standards (no certificate)
Continuity testing 20Ω
Dimensions (L x W x H) 71 x 150 x 100 mm
Height 100mm
Insulation resistance (max.) 5.5 GΩ
Length 71mm
Power supply (details) 6 Mignon batteries (AA)
Reading category CAT III 600 V
Reading Type Insulation resistance
Type Insulation tester
Voltage reading range (max.) 600V
Width 150mm

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