Sifam Tinsley AL19W Series Analogue Voltmeter AC, 27 (Dia.) mm

Performance based on BS6840:Part 17:1991 & IEC 268-17:1990, which cover dynamic characteristics, frequency response, harmonic distortion, input impedance and temperature range
Calibrated for use with a 3.6kΩ resistor 4VU above the scale marking so that reference deflection (0VU) is produced by a signal 4VU above 1mW in 600Ω (1.228V)
Transparent acrylic front and polystyrene (SAN) rear body moulding with various bezels available separately
Taut band core magnet movement housed in a 26mm diameter barrel occupies minimum behind panel space
Rear zero adjustment screw
Connections via 6mm tag terminals (High Specification - M4 bolt terminals)
Meters do not suffer from calibration interference when mounted on ferrous panels
Black ABS front and behind panel mounting bezels, supplied separately
Dual meter scale indicates -20 to 3dB and 0 to 100%
Rear mounting 12V bulb top-lighting assemblies are available for rear mounted meters
Operating temperature range –25 to +55°C
Panel cut-out for barrel Ø 27mm, fixing stud size M2.5 x 10mm