Easy Log temperature and humidity data logger EL-USB-2

HWM Smartlog water Industry Data Logger Transmitter

Novus LogBox AA Micro Electronic Data Logger Analogue Signals 32K Memory IP65

Philip Harris Vintage Voltmeter Fully Working Antique

Easy Log temperature data logger EL-USB-1 battery not included

Omega HH306A Data Logger Thermometer

Philip Harris Vintage Voltmeter Fully Working Antique