BM3549 Digital Insulation TesterDetailed product description：

Bm3549 digital insulation tester+digital multimeter

Panel calibration, automatic range adjustment
3 3/4 digits, maximum display: 3999
overload protection
Backlit, dimensional and functional symbol indication
Can directly measure insulation resistance and test voltage. Insulation resistance: 400k Ω~40G Ω
Accuracy: 400k Ω~200M Ω± 3% ± 5200M~4G Ω± 5% ± 5,4G~40G Ω± 10% ± 5
Test voltage: 500V/1000V/2500V
Short circuit current: not less than 1.5mA
Test time selection: 1/2/10min (minutes)

Multi meter function:

DC voltage: 400m/4/40/400V ± 0.5% ± 51000V ± 0.8% ± 2
AC voltage: 4/40/400V ± 0.8% ± 5, 700V ± 1% ± 5
DC current: 40mA/400mA ± 0.8% ± 5
AC current: 40mA/400mA ± 1% ± 5
Resistance: 400/4k/40k/400k Ω± 0.8% ± 5, 4M Ω± 1% ± 3, 40M Ω± 3% ± 3
Capacitor: 40n/400n/4u/40uF ± 3% ± 5
Frequency: 40/400/4k/40 k/400 k/4MHz ± 0.5% ± 3
On-off test \ diode
Dimensions: 170 × 156 × 64mm
Power Supply: AA1.5V × 6
Weight Weight: Approximately 650g (including battery)