TOA ZM-104A Analogue Speaker Impedance Meter

With tester leads and sturdy carry case

The TOA ZM-104A makes speaker line testing quick and straightforward, allowing impedance checks to be carried out easily in a similar way to using a circuit tester for resistance.

Key Benefits

• Quickly measures speaker line impedance up to 100kΩ
• Direct-reading analogue meter for clear, simple results
• Zero adjustment helps maintain accuracy across ranges
• Ideal for checking 100V line speaker installations
• Supplied with test leads and protective carry case

Specifications

• Power source: 4 x R6 batteries, 1.5V DC each
• Current consumption: 39mA
• Reading: Direct reading meter in Ω
• Measurement range x1: 5Ω to 1kΩ
• Measurement range x10: 50Ω to 10kΩ
• Measurement range x100: 500Ω to 100kΩ
• Accuracy: ±10%
• Oscillation frequency: 1kHz, ±10%
• Battery life: 30 hours on x1 range; 60 hours on x10 and x100 ranges
• Operating temperature: -5°C to +40°C
• Dimensions with case: 120mm W x 220mm H x 63mm D
• Unit dimensions: 110mm W x 180mm H x 58mm D
• Finish: Black ABS resin
• Weight: 700g including carry case, without batteries
• Accessory included: 1 set of test leads
• Measurement category: CAT I

Perfect For

• Audio installers and service engineers
• 100V line speaker system testing
• PA, commercial audio and venue maintenance
• Workshop, field and on-site fault finding

Delivery & Returns

Your order will be carefully packed for safe delivery. Returns are accepted within 30 days, provided the item is returned in its original packaging with all included accessories.

Warranty

Includes a 1-year manufacturer warranty covering parts and labour, excluding consumable or wear-and-tear items.

Supplied by an established UK audio and lighting specialist with decades of experience in professional sound, lighting and installation equipment.