Technical Data:
Digital tubular inside micrometer
Range: 150-2000mm
Micrometer head: 150-175mm
Travel of micrometer head: 25mm
Resolution: 0.001mm/0.00005in
Accuracy: (3+n+L/50)um
n = number of rods
L = maximum measuring length (mm)
Carbide measuring faces
Extension rod diameter: 22mm
IP65 dust/waterproof
Button functions: on/off, set, mm/inch, data transmit
Data output
Automatic power off
Supplied with setting standards
Power with data interface: CR2032
Built-in wireless version power: rechargeable lithium battery
Extension rods: 25mm, 50mm (2 pcs), 100mm, 200mm (2 pcs), 400mm (3 pcs)

Dimensions:
Extension rod/body diameter=dia.22mm

Remark:
With data interface: optional wireless transmitter code 7315-31; receiver required
Catalogue shows wireless examples 3521-175WL and 3521-1000WL plus generic WL placeholder; unlisted WL combinations are not expanded